Generation, conversion, or distribution of electric power (H02)

H   Electricity(222322)
H02            Generation, conversion, or distribution of electric power(58369)
ethod of power takeoff from half-wave power transmission in “electric centre” // 2607649
FIELD: electrical engineering.SUBSTANCE: according to the method on the line arranged are additional sources of reactive capacitive power reducing the line inductance n times and increasing the line capacity n times and raising the voltage performance along the ordinate axis by reducing the line wave resistance only.EFFECT: providing consumers with rated voltage in the “electric center” of the middle part of a half-wave power transmission line operating in the idle mode.1 cl, 1 dwg
Device to mount switch on mounting panel // 2607642
FIELD: electricity.SUBSTANCE: invention relates to a device to mount switch (1) on mounting panel (2) containing a front side, a rear side, as well as a mounting hole. Switch (1) includes housing (6) having upper side (7) of the housing and at least one fastening ledge (8) designed to be inserted into mounting hole (5) from the rear side of the mounting panel. Besides, there are there are both means for fastening ledge (8) to rest on front side (3) of the mounting panel and opposite support elements for the upper side of the housing to rest on rear side (4) of the mounting panel. According to the invention opposite support elements are formed by springs (10).EFFECT: invention provides the possibility of compensating various thicknesses of mounting panels during mounting.12 cl, 11 dwg
ethod and system for determining required charge degree for accumulator battery // 2607469
FIELD: electrical engineering.SUBSTANCE: invention can be applied to electrical engineering. Charging a battery to required degree of charge occurs before starting a drive cycle of vehicle. Required degree of charge is determined based on profile of regenerative braking energy, that, as expected, will be recovered, and energy profile, that, as expected, will be used from battery during part of future drive cycle.EFFECT: technical result is determination of required charge of traction battery before drive cycle for recuperation of braking energy during drive cycle.20 cl, 8 dwg
Devices of piezoelectric effect use in transportation vehicles // 2607461
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and energy converters operating basing on the use of piezoelectric ceramic materials and can be used in any field of engineering as an electric power source. Device comprises a rotor having mechanical connection with the hub of a vehicle, spring-loaded rollers able to insignificantly move along a load acting on piezoelectric elements. Rollers interact with groups of piezoelectric elements arranged in holes made in an isolated stator. Number of rollers is equal to the number of groups of the piezoelectric elements. Piezoelectric elements in the groups are isolated from each other and are placed with their planes perpendicular to the acting load and are electrically interconnected in parallel. Mechanical connection of the roller with the piezoelectric elements is implemented by non-conductive pressing elements with recesses, while the rollers have mating circular ledges. Pressing elements are interconnected by flexible links with recesses aligned with the rollers recesses. Number of piezoelectric elements in a group is selected depending on required output voltage of the group. To create the required DC voltage, for example, for charging the vehicle accumulator battery, a high-frequency voltage converter is used containing an input capacitor, on plates of which high voltage is supplied, and located between the plates a flat output inductance, from which low voltage is removed.EFFECT: technical result is improvement of efficiency.3 cl, 4 dwg
ethod of controlling total ballast load in autonomous multi-modular electric power plant based on stirling engines // 2606979
FIELD: energy.SUBSTANCE: invention relates to power engineering and electrical engineering and can be used in devices for conversion of thermodynamic energy into electric energy, used as a source of electric power in power supply systems of independent electrical power systems. Method of controlling total ballast load in autonomous multi-modular electric power generation plant based on Stirling engines, comprising m generation modules, each of which includes free piston Stirling engine with integrated linear generator and rectifier, outputs of which are connected in parallel and form a DC bus, to which are connected accumulator battery, payload and a common unit of ballast load consists in following: measuring voltages and currents of each linear generator and payload, further, based on measured values of voltages and currents of each linear generator, calculating active power with subsequent summation; calculating current value of payload power, generating a signal of ratio of calculated payload power to total power of linear generators, comparing measured value of output voltage of payload with reference voltage, processing resultant signal by means of unit of correcting device on basis of proportional-integrating regulator; summation of output signal of proportional-integrating regulator with a signal of ratio of calculated load power to total power of generators, forming an error signal, transmitted to one of inputs of a comparator, and to other comparator input is transmitted stepped ramp voltage, formed by an event manager of a DSP controller. At output of comparator is formed a wide-pulse modulated signal, which is transmitted to transistor control driver of ballast load.EFFECT: high dynamic accuracy and stability of wide-pulse controller of common unit of ballast load with simultaneous provision of stability of voltage at DC bus in transient and steady-state operating modes of autonomous power supply system.3 cl, 5 dwg
Converters power modules thermal conditions control device // 2606974
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used for control over power modules thermal state, included in voltage and frequency static converters for different purposes. Converter power modules thermal conditions control device is equipped with two units of rectifying and maximum voltage selecting, adding and differential amplifiers, modules with greatest and smallest heating temperature numbers indication units, average temperature indicators, greatest and smallest temperatures and temperature difference between them, as well as two comparators. Rectifying and maximum voltage selecting units are made on operating rectifiers with diode-resistive feedbacks. Modules with the greatest and smallest heating temperatures numbers Indication units are made on transistor keys with light emitting diodes in collector circuits. Device provides comprehensive monitoring of voltage and frequency converter power modules thermal state, facilitates troubleshooting, is characterized by small dimensions, weight and cost.EFFECT: technical result is automation of most and least heated modules detecting, reduced hardware costs, higher reliability and efficiency, as well as high device informativeness.3 cl, 1 dwg
ethod of adjusting the mode of compensation of capacitor currents in electric networks // 2606952
FIELD: electrical engineering.SUBSTANCE: invention may be used in electrical engineering. According to the method, for formation of disturbances in zero-sequence circuit (ZSC) a series of alternating polarity pulses with repetition period in a series close or equal to period of intrinsic oscillation circuit is used. Input analogue values of unbalance voltage and current of the reactor are digitized, using the calculated value of the sampling frequency of Fd, free component is obtained by subtracting input and delayed by a time T signal taking into account changes of industrial frequency on the interval of T. Determined natural oscillation frequency of zero-sequence circuit, is compared with a frequency equal to the industrial network, maladjustment value is found and when its value is beyond the preset settings, influnce on the change of inductive current of ASR.EFFECT: technical result is an increase of the accuracy of the setting of arc-supressing reactors (ASR), validity and expanded field of application.4 cl, 4 dwg
ethod of reducing flicker in electric arc furnaces and device for its implementation // 2606672
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy and can be used for production of steel in electric arc furnaces with control of flicker parameters. In the method memory bank data on flicker is created by storage device, storing momentary flicker (MF) time dynamics depending on state and performance characteristics, MF time dynamics measurement during initial phase of melting and related characteristics of state and operating characteristics is performed using recording device, MF time dynamics comparison during initial phase of melting is performed using computing device with stored melting phases time dynamics of common flicker data bank taking into account state characteristics and operating characteristics, selection of time general dynamics with maximum MF matching is performed using computing device, as well as state characteristics and operating characteristics as predicted total flicker dynamics, advanced dynamic matching of further steel production process control in comparison of predicted general dynamics with preset limits for flicker is performed using control unit.EFFECT: invention allows to control flicker indices to be expected and with high degree of probability can be determined, on the basis of state characteristics and operating characteristics, which are recorded during first minutes in melting phase; as such flicker can be effectively alleviated and maintained below preset limit values.26 cl, 4 dwg
ethod for controlling self-contained asynchronous generator // 2606643
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used for power supply of self-contained objects requiring a stable AC network at variable rotation speed of the generator shaft. In the method for controlling a self-contained asynchronous generator with a valve inverter in the rotor circuit the rotor current frequency is changed proportionally to the sum of rotation frequencies of the rotor and the generator stator field, formed are signals of setting instantaneous values of a sinusoidal three-phase output variable of the inverter shifted relative to each other by the angle of 2π/3, determined is a deviation between the set and the measured signals of the inverter output variable, the deviation is compared with the threshold level, and if it exceeds the deviation shall be decreased down to a value smaller than the threshold level. Between the rectifier and the smoothing reactor a key element is switched on, and antiparallel to the inverter input with the smoothing reactor a diode is switched on to make at the key element switchoff a circuit of current passage flowing due to the power accumulated in the motor windings and the smoothing reactor. Determined is a deviation between the set and the measured maximum values of phase currents instantaneous values differences modules at the inverter output, the deviation is compared with the threshold level, in case of exceeding which a key element in the DC circuit is switched on, and when this deviation does not exceed the threshold level, the key element is switched off in the DC circuit. Method for controlling a self-contained generator allows to improve stabilization of voltage at the generator output at change of the load, to increase the noise immunity.EFFECT: technical result is improvement of voltage stabilization at the generator output at change of the load, higher noise immunity of the control system.1 cl, 1 dwg
Charging device, charging terminal, charging system and charging control method // 2606640
FIELD: electrical engineering.SUBSTANCE: invention can be applied to electrical engineering. Method of charging control includes stages, at which: when charging operation begins, charging system is controlled so, that it is in first feedback state; and when charging system is in first feedback state, controlling feedback reception port so, that it is connecting with first power supply port according to first charging control device by means of first charging device switching device; and controlling second data signals transmitting port so, that it is connected with microchip data port according to second charging control device by charging terminal second switching device; determining, wether charging operation duration exceeds preset time delay or not; and when charging operation duration exceeds preset time delay, charging system is controlled so, that it is in second feedback state; and when charging system is in second feedback state, controlling feedback reception port so, that it is connecting with first data signals transmitting port according to first charging control device by means of first switching device, and controlling second data signals transmitting port so, that it is connecting to voltage input port according to second charging control device by second switching device.EFFECT: technical result is elimination of voltage drop at USB wire between terminal and charging device.14 cl, 6 dwg
ethod of controlling primary magnetic flux // 2606637
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used to control a synchronous motor with permanent magnets. In compliance with the method of controlling the primary magnetic flux in accordance with the torque changed is the value of the primary magnetic flux command in accordance with the torque for proper control due to that over the current phase at control over the primary magnetic flux. With regard to certain torque T in cases when the amplitude of the Λδ primary magnetic flux takes the value of Λδ0(T), amplitude ia of the anchor current is minimized. Herewith provided is control with maximum torque/current. Thus, the value of Λδ0(T) is used as the amplitude of the value of the primary magnetic flux command to control over the primary magnetic flux, owing to which the anchor current is determined automatically. I.e. current phase β is defined unambiguously. One word, control over current phase β is carried out in order to obtain the desired phase according to torque T, for the rotary motor to be driven into action in the effective operating point in accordance with the torque.EFFECT: technical result is actuation of the rotary electric motor in the effective operating point.15 cl, 17 dwg
Generator of direct drive wind power plant // 2606636
FIELD: energy.SUBSTANCE: invention relates to generator (1) of a direct drive wind power plant having stator (4) and rotor (2), which includes: windings (8) of the stator for creation of several alternating currents, in particular, at least three phase-shifted relative to each other alternating currents, means (10) of rectification to rectify the alternating currents and at least two collecting buses (12) of direct current to collect rectified alternating currents.EFFECT: technical result is improved distribution of generated current.9 cl, 6 dwg
ethod of controlling power of consumers // 2606630
FIELD: transportation.SUBSTANCE: invention relates to transport and can be used for heating to consumers in a vehicle. In method and apparatus for controlling electric power of consumers (34, 36), consumers (34, 36) are arranged in electric circuit (30), and at least one connection (50) between any two consumers (34, 36) adjoins branching line (52), which through related switch device, comprising at least one switch (38, 40, 42, 44) for power control, is connected to mains voltage (46) and/or to mass (48).EFFECT: reduced losses of power consumption.8 cl, 3 dwg
Dc electric traction drive // 2606406
FIELD: transport.SUBSTANCE: invention relates to electrical traction systems of vehicles. DC electric traction drive comprises DC traction motor, voltage converter, insulated gate bipolar transistor, in-series connected traction motor armature winding and excitation winding, parallel to which diode is connected in non-conducting direction. Traction drive is additionally equipped with power accumulator, two additional diodes, brake resistor and eight switching elements.EFFECT: technical result consists in improvement of DC electric traction drive reliability.5 cl, 1 dwg
Simplified method of controlling converter of three-phase ac voltage into dc voltage // 2606401
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering, namely, to a simplified method of converter controlling an input n-phase AC voltage into a DC voltage, herewith each phase of the input alternating voltage is connected with one switch (1, 2, 3) of the converter. Method involves the following steps: (a) – step of determining signs of j characteristic voltages (Va, Vb, Vc, Va-Vb, Vb-Vc, Va-Vc, Va+20°, Vb+20°, Vc+20°, Va-20°, Vb-20°, Vc-20°); (b) – step of determining reference combination (CC1-12, C1-C18), to which signs of j characteristic voltages (Va, Vb, Vc, Va-Vb, Vb-Vc, Va-Vc, Va+20°, Vb+20°, Vc+20°, Va-20°, Vb-20°, Vc-20°) correspond, by comparing signs of these j characteristic voltages with reference table data; (c) – step of opening each switch during a predetermined time of the open state (t1, t2, t3) depending on reference combination (C1-C12, C1-C18) identified at step (b).EFFECT: technical result is simplification of the converter control algorithm.8 cl, 13 dwg
Receiving electrodes of capacitive wireless power supply system // 2606389
FIELD: electricity.SUBSTANCE: invention can be applied to electrical engineering. Disclosed are various receiving electrodes for supplying power to load, attached to capacitive energy transmission system. According to invention receiving electrodes include first conducting plate (212), connected to first hinge (211) in form of sphere, wherein first hinge in form of sphere is connected to first receiving electrode (210); and second conducting plate (222) connected to second hinge (221) in form of sphere, wherein second hinge in form of sphere is connected to second receiving electrode (220), wherein second receiving electrode is connected with inductance coil of capacitive energy transmission system, and first receiving electrode is connected to load, wherein inductance coil is connected to load for creation of resonance in capacitive energy transmission system. Also disclosed is magnetic attachment of receiver to transmitter of capacitive energy transmission system.EFFECT: higher efficiency of energy transfer.15 cl, 11 dwg
Inverter for solar power plants // 2606383
FIELD: electronics.SUBSTANCE: invention relates to conversion of electronic equipment and can be used in designing self-contained solar power sources. Inverter for solar power plants includes solar cells unit, connected to energy converter. Energy converter first parallel connected power module is connected to transformer first primary winding. Energy converter second parallel connected power module is connected to transformer second primary winding. Transformer primary windings are switched on opposite relative to each other. Transformer secondary winding is connected in parallel to series-connected resistor and supercapacitor.EFFECT: invention allows to increase efficiency due to elimination of additional elements and increase conversion frequency, as well as reduce mass and dimensions parameters.1 cl, 1 dwg
Device for uninterrupted power supply // 2606215
FIELD: electricity.SUBSTANCE: invention relates to a device for uninterrupted power supply with current rectifier (1), power accumulator (2) to store electric power, inverter (3), switch (4) and control device (5, 6), herewith current rectifier (1) with a current rectifier input is connected to power supply network (AC1), power accumulator (2) is connected to current rectifier (1) output and inverter (3) input, to the output of inverter (3) protected network (AC3) or a protected user is connected, the current rectifier input or power supply network (AC1) via switch (4) are connected to the inverter output, and current rectifier (1), inverter (2) and switch (4) are controlled and/or regulated by control device (5, 6), herewith control device (5, 6) includes two control units (5, 6), which are made doubling, and control units (5, 6) simultaneously control or regulate current rectifier (1) and switch (4) or inverter (3) and switch (4).EFFECT: increasing reliability.14 cl, 1 dwg
Noise in network elimination control device // 2606210
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering, namely to adjustment device (1) for reduction of electric noise in network (2), caused by electric motor (4) moment oscillations connected through the inverter (3). Device (1) input signal (8) contains information on currents and/or voltages in electric motor (4), caused by noise in network (2) from moment oscillations. Information on electric motor (4) speed and/or rotor turn angle enables control in frequency-selective manner. Upper frequencies filter (15) eliminates preset RPM variations and low-frequency components of electric motor moment from control signal calculation to reduce interferences, containing only separate additional moment components (115). Resultant output signal (10) of control device (1) extra moment with negative sign are superimposed on preset moment (104) and supplied as common preset moment (110) to inverter control device (14).EFFECT: technical result consists in minimization of electric noise in network (2) caused by electric motor (4) moment oscillations.5 cl, 5 dwg
Ac generator controlling system and method // 2606206
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used in AC generator output voltage regulation systems used to maintain storage batteries charge (charging). In AC generator control system and method intended for AC generator, there is internal output voltage regulator, which measures and controls charging voltage through internal feedback line. Above system includes the following components: switch on internal feedback line; adjustable voltage source connected with internal output voltage regulator; external feedback line, made with possibility of connection to measure storage battery status directly on storage battery, receiving charging voltage; controller connected so that to receive signal corresponding to storage battery state via external feedback line and in response to it selectively open switch and selectively actuate adjustable voltage source, to selectively change internal output voltage regulator input voltage. This makes inner output voltage regulator respectively change AC generator output voltage so that voltage arriving to storage battery, will have preset value.EFFECT: technical result is enabling control over generator output voltage, used for storage batteries charging, depending on change of storage battery environment, and losses in line between AC generator output and storage battery.20 cl, 4 dwg
Faults direction detection in medium voltage power supply networks // 2606204
FIELD: electricity.SUBSTANCE: invention can be applied to electrical engineering. According to method of identifying direction, wherein malfunction in three-phase electric network (12a) of medium voltage power supply occurs relative to measurement point (19a, 19b) in medium voltage power supply network (12a), electric protective device (18a, 18b) control device (37) for detection of fault direction are used both measured current values, relating to phase conductor, and measured voltage values, relating to phase conductor. Measured current values are recorded at measurement point (19a, 19b) in medium voltage power supply network (12a). In order that direction where malfunction occurs relative to measurement point (19a, 19b) was easy and thereby efficiently recognized, it is proposed, that measured voltage values were recorded on the side of low-voltage transformer (13), connecting medium voltage power supply network (12a) with low-voltage power supply network. Invention also relates to correspondingly made electric protective device (18a, 18b).EFFECT: higher reliability and simple determination of fault direction.9 cl, 2 dwg
Remote spacer-vibration damper clamp lever and remote vibration damping spacer with such clamp lever // 2606198
FIELD: machine building.SUBSTANCE: disclosed is clamp lever for use in remote spacer-vibration absorber for separation of split transmitting wires, having one far end part, intended for wire supporting, and other end part, equipped with end section, which is made with possibility of arrangement, during use, in interacting cavity in frame, wherein clamp lever comprises lever element (1) and holder element (2), wherein lever element and holder element, when attached, are made with possibility to grip wire, during use, wherein lever clamp additionally has clamp insert (5), made with possibility to embrace wire, when clamp lever is in closed position, during use, around wire, and clamp insert is made of synthetic semiconducting elastomer, suitable to grip wire at temperature exceeding 130 °C.EFFECT: invention enables decreased destruction of wires.15 cl, 5 dwg
Production of rotor of electric induction machine // 2606193
FIELD: electricity.SUBSTANCE: invention relates to production of the rotor electric asynchronous machine. Method of making electric rotor of asynchronous machine involves making a support shaft (1) equipped with slots (4) of the shaft. On support shaft (1) is installed a squirrel-cage rotor. Note here that support shaft (1) and electroconductive loose material (8) is introduced into the reservoir (2) so that loose material (8) fills the grooves (4) of the shaft. Loose material (8) in the reservoir (2) by means of hot isostatic pressing is compacted and connected to support shaft (1). Reservoir (2) after hot isostatic pressing is separated from the support shaft (1). As the loose material (8) is used nickel-plated copper loose material. Note here that nickel is used as diffusion for strong connection of copper to support shaft.EFFECT: simplifying of manufacturing of short-circuited rotors.9 cl, 2 dwg
Electric power supply arrangement for driving means for operating rail vehicle on electrical supply networks // 2606162
FIELD: electricity; transportation.SUBSTANCE: group of inventions relates to electrical traction systems of vehicles. Power supply device for drives comprises a connection to electric mains, connection to an intermediate DC circuit (ZK), rectifier, comprising multiple modules, electrical connection for operating vehicle in DC voltage network. Each module includes a first rectifier connected through an inverter to a transformer and through a transformer connected to a second rectifier. At DC voltage circuit is connected with DC voltage side of second rectifier of first module. Primary side of transformer of first module is connected to primary side of transformer of second module. DC voltage side of second rectifier of second module is connected to intermediate circuit (ZK). Second object of invention consists in a method of operation of vehicle through a power supply device. Third object consists in a method of making power supply device.EFFECT: technical result consists in reduction of weight of power supply device.11 cl, 12 dwg
ethod of starting the engine (versions) and vehicle engine starting system with hybrid drive // 2606160
FIELD: machine building.SUBSTANCE: invention relates to improvement of driving properties of a vehicle. Method for starting an engine includes starting an engine with the first electric machine at the required torque consumption less than the threshold value; starting the engine with the second electric machine at the required torque consumption exceeding the threshold value; supplying the torque sufficient for rotation of wheels, exclusively by the first electric machine at selected operating conditions and disconnecting the second electric machine from the engine when the engine speed reaches the threshold speed of rotation. Threshold values may vary depending on the speed of rotation of the first electric machine. Engine start system for a motor vehicle with hybrid drive comprises starter, double mass flywheel, drive disengagement clutch to drive wheels, built-in drive to drive wheels starter/generator and controller.EFFECT: improved riding qualities and reduced fuel consumption.10 cl, 48 dwg
Self-propelled vehicle electromechanical transmission // 2605957
FIELD: machine building.SUBSTANCE: invention relates to self-propelled working machines. Self-propelled machine electromechanical transmission comprises traction generator, connected to internal combustion engine, traction electric motor, machine drive wheels or caterpillars drive side gearboxes, connected with traction electric motor. Traction generator and/or traction electric motor is made reactive inductor and comprises rotor on shaft of which geared magnet core is fixed, and stator with poles and armature windings, made in form of concentrated coils. Traction generator and/or traction electric motor is made with combined excitation and armature windings, or with magnetoelectric excitation, or with combined excitation using magnetoelectric excitation and combined excitation and armature windings, or with windings, each of which is alternatively used as excitation or armature winding depending on rotor position.EFFECT: increasing transmission reliability.20 cl, 1 dwg
Servo driver // 2605948
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering, namely, to servo driver. Servo driver comprises setting unit 1, integral regulator 2, proportional regulator 3, proportional-differential regulator 4, power converter 5, electric motor 6 with actuator 7, position sensor 8, differentiation unit 9, proportional link 10, adder 11, adder-subtractor 12, comparison units 13 and 14 and multiplexer 15. In servo driver control signal is generated by rotation EMF and electric motor maximum permissible current value.EFFECT: technical result consists in providing motor current limitation in servo driver at maximum permissible value level.1 cl, 1 dwg
Electric motor adaptive control system // 2605946
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used in non-stationary objects automatic control systems – electric drive adaptive control systems. Electric drive adaptive control system additionally contains an associative memory, a differentiator, two multiplication units, three adders, a digital sensor of angular speed, three amplifiers, two delay units, three module determination units. Output of the digital angular speed sensor via series-connected the first delay unit, the second delay unit, the third adder, the first module determination unit, the associative memory, the first multiplication unit is connected to the second input of the second adder, the output of which via an digital-to-analogue converter is connected to the input of the electric motor, and via series-connected the second amplifier, the fourth adder, the second module determination unit – to the second input of the associative memory. Output of the digital angular speed sensor is connected to the second inputs of the first and the fourth adders, and via series-connected the fifth adder, the third module determination unit, the associative memory and the second multiplication unit - to the third input of the second adder. Output of the first delay unit is connected to the second inputs of the third and the fifth adders. Output of the first adder is connected via the third amplifier to the second input of the first multiplication unit, and via series-connected the fourth amplifier and the differentiator – to the second input of the second multiplication unit.EFFECT: technical result is improvement of accuracy and stability margins by amplitude and by phase of the electric motor control system if affected by a coordinate-parametric interference.1 cl, 1 dwg
Device of dc motor of increased power with permanent magnet excitation and electronic switching of collector plates // 2605945
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering, namely to electric motors of drives of auxiliary equipment of mobile objects. Device of a DC motor with increased mechanical power with stator excitation from permanent magnets and electronically switching of collector plates comprises a stator, executed as a cylindrical magnetically conductive body with diametrically opposite poles of excitation on its inner surface; diametrically opposite poles of excitation are permanent magnets on the basis of the neodymium-iron-boron (Nd-Fe-B, NdFeB)alloy. Collector plates are connected to armature winding with a wire. There is a stroboscopic disc with slots in the center of the collector plates on the armature shaft between the collector and the side cover. Side cover, which includes brush yokes with fixed brush holders with brushes, has an optical coupler that gives signal to the electronic circuit, which, in turn, sends a current impulse when the brush is at the center of the plate, excluding spark formation during the transition process.EFFECT: technical result – increase of efficiency of operation of the collector and DC motor stator with excitation from permanent magnets.1 cl, 1 dwg

Wearable device and method of making thereof // 2605895
FIELD: personal usage items.SUBSTANCE: invention relates to wearable device and method of its production, relating to "smart" objects for wearing, in particular wearable electronics. Housing of wearable device comprises front body part, lower body part and electronic components. Front body part is connected to lower body part in upward-downward direction. Front body part and lower body part confine space, forming watertight cavity. Body includes electronic components located in cavity. Electronic components contain printed circuit board and battery, which are electrically connected. Printed circuit board has wireless data transmission unit and at least one type of sensors. Lower body part has two contacts for charging, formed on outer side of body part and electrically connected with electronic components.EFFECT: possibility to use of device in conditions of moisture and in contact with water is provided.14 cl, 6 dwg

Solar radiation receiver // 2605867
FIELD: energy.SUBSTANCE: invention discloses solar radiation receiver for converting of solar energy into heat and electric energy. Solar radiation (1) receiver (2) for solar power parabolic antenna has thermal engine, located in its focal point, inlet and outlet manifolds (9), group of tubes (8) extending from inlet manifold to outlet manifold, where working fluid flows heated during reception of solar radiation (1). Receiver (2) contains upper layer (5), at least one intermediate layer (6) located under upper layer (5). Tubes (8) are laid in form of labyrinth along entire surface of receiver intermediate layer or intermediate layers. Lower layer (7) is located under, at least one, intermediate layer (6), in which working fluid medium inlet and outlet manifolds (9) are located. Upper layer (5), at least one intermediate layer (6) with tubes (8) and lower layer (7) are made as one single part out of alloy, capable to withstand temperatures higher above 600 °C.EFFECT: invention provides longer tubes 8 on receiver (2) surface, which leads to heat transfer optimization.8 cl, 6 dwg

Flyback converter damping device // 2605766
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering, radio electronics and can be used in pulsed power supply sources, namely in flyback voltage converters, as overvoltage limiting circuit on power diode occurring during switching. Flyback converter damping device comprises transformer secondary winding, which first output is connected to charging capacitor first output and device output through first diode, as well as through in-series circuit consisting of first capacitor and second diode. First capacitor and second diode connection point is connected to inductance first output. Transformer secondary winding second output is connected to charging capacitor second output and to "common" circuit. Third diode cathode is connected to inductance first output. Third diode anode is connected to inductance second output and to "common" circuit via additional capacitor.EFFECT: technical result of disclosed invention consists in improvement of flyback converter efficiency and provided by use of reactive elements, recharging during action of any half wave, output of secondary transformer winding regenerative dissipation energy accumulated in inductance to charging capacitor and load.1 cl, 2 dwg

ethod of critical rotation speeds passing through in electromechanical energy converter // 2605692
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering, specifically to high-speed electromechanical energy converters on hybrid magnetic bearings. Determining electromechanical energy converter rotor rotation speed, measuring voltage on stator windings, comparing it with values, included into electromagnetic bearings control unit program, and with approaching to voltage value, corresponding to rotor critical speed range, in pulsed manner increasing current at electromagnetic bearings windings, shifting critical frequencies range for this rotor. When passing through critical frequencies zone, loaded into electromagnetic bearings control unit program, current at electromagnetic bearings windings is returned to rated value, returning hybrid magnetic bearings rigidity to rated values.EFFECT: technical result consists in increase of accuracy of hybrid magnetic bearing rigidity automatic adjustment in rotor rotation critical speed zone with maximum reliability of high-speed electromechanical energy converter on hybrid magnetic bearings.1 cl, 2 dwg, 1 tbl

Power generator // 2605611
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering, namely, to power generators. Power generator comprises first and second elements from radially magnetized permanent magnets and third element from concentrically arranged multiple coils inducing electromotive force. One element permanent magnets quantity exceeds other one permanent magnets integer multiple quantity in two times. Number of coils is equal to permanent magnet one of elements number of permanent magnets. Generation of energy in third element inducing electromotive force, is caused by of permanent magnet first element or/and permanent magnet second element relative rotation. In power generator first and second elements from permanent magnets interacting with each other to change magnetic field force.EFFECT: technical result consists in improvement of energy generation efficiency.5 cl, 9 dwg

System and method for transferring electric energy to a vehicle using a plurality of segments of a conductor arrangement // 2605579
FIELD: transportation.SUBSTANCE: group of inventions relates to power supply of vehicles with electric motive power. System for transferring electric energy to a vehicle comprises an electric conductor arrangement and an alternating current supply. Conductor arrangement comprises a plurality of consecutive segments. Segment are connected in parallel to each other with the alternating current supply. Each segment is coupled to the supply via an associated switching unit. Each segment is coupled to the supply via an associated switching unit and via a constant current source, the switching unit is switched on. Constant current source is coupled to the segment on one side and to the supply on the other side. Second object of the invention involves a method of making a system for transferring electric energy to a vehicle. Third object of the invention involves a method for operating a system for transferring electric energy to a vehicle.EFFECT: technical result is keeping the current constant irrespective of the electric power which is transferred to vehicles.14 cl, 7 dwg

ethod of energy-efficient asynchronous electric drive speed control with flexible power limitation // 2605458
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used in industry and transport in electric drive systems with asynchronous motors (AM) direct torque control. Method of induction motor speed dual-zone regulation, using direct torque control. In method of asynchronous electric drive speed dual-zone control determination of torque setting limit, calculated by speed controller, is carried out by dividing preset power to engine rotor speed, wherein preset power value is determined depending on motor stator winding temperature, calculated according to model or measured by temperature sensor, according to following formula: , where Ps is preset power, Pn is motor nominal power; θadm is stator winding admissible temperature; t0 is current winding temperature, and assignment for stator flux linkage is determined in first and second zones of control according to assignment for torque value based on calculated dependency of stator flux linkage from motor torque, providing stator current minimum value at specified torque and having form of curve with saturation.EFFECT: technical result is enabling asynchronous motor dual-zone control in direct torque control system with more complete usage of motor by heating and power.1 cl, 2 dwg

Adaptive device for controlling power thyristor // 2605454
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used to control power thyristors of rectifiers, independent inverters and thyristor contactors. Adaptive control device for power thyristor comprises power supply, current sensor, key device, threshold device, input of which is connected to output of current sensor, and its output is connected to control input of output voltage of power supply.EFFECT: reduced power losses.1 cl, 1 dwg

ulti-shaft ship electric power plant // 2605449
FIELD: electricity.SUBSTANCE: using is in electrical engineering, shipbuilding. According to invention, multi-shaft vessel electric power plant comprises steam generating plant with accident protection system, turbines, main synchronous generators, controlled semiconductor power converters, propulsion motors, at least two main distribution buses, each of which is receiving power from two or more parallel operating main synchronous generators, critical consumers power buses, matching units, electric power converters and supply feeders from shore. Plant includes additional distribution buses, which number is equal to that of main distribution buses, mounted synchronous generators, connected in parallel to additional distribution buses and matching device, included in between additional distribution buses, critical consumers power supply busbars and accident protection system, in its turn critical consumers power supply buses are connected to additional buses via matching units and stabilized converters. At that, main and additional distribution buses are connected to each other via controlled rectifiers and driven inverters, between main distribution buses disconnector is installed.EFFECT: higher reliability and efficiency, broader functional capabilities of electric power plant.1 cl, 2 dwg

Wind-driven power plant and method of electrical energy input // 2605446
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used to feed electric power into electric power, three-phase network. In wind-driven power plant and method of feeding of electric energy to electrical input three-phase network (8) the following stages are performed: electric current input by unit (2)for input of energy in point (60) of connection to network, detection of asymmetry in network (8) of power supply, in particular, negative-sequence system components in network (8) of power supply, Input to network (8) of power supply asymmetric current component for at least partial compensation of recorded asymmetry, input of asymmetric current component is performed so that unit (2) for energy input at that acts as consumer.EFFECT: technical result is increase of quality of electric power network.12 cl, 5 dwg

Alternating current generator with axial-piston engine // 2605444
FIELD: electric engineering.SUBSTANCE: invention relates to electrical engineering, namely to motor-generator systems, and can be used in alternating current sources designing and production. In cylinders 1 pistons 2 resting by rods 3 on guide washers 4 are installed in pairs. Latter are fixed on shaft 5 kinematically connected to other engine systems via flywheel 7. Electric windings 8 are arranged along cylinders 1 inner part edges. On rods 3 annular magnets 9 are secured facing each other by opposite poles. During movement of pistons 2 from upper dead point to lower dead point annular magnets 9 magnetic flows generate electromotive force in electrical windings 8.EFFECT: technical result consists in improvement of reliability.1 cl, 1 dwg

Shaftless generator // 2605204
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering, in particular, to electric power generators. Generator (1) includes stator (3), rotor (5), having rotational axis (7), torque source for creation of rotor rotation around stator, first group from one or more magnets (9), provided on stator (3), and second group from one or more magnets (11), provided on rotor (5). Magnets (9, 11) like poles face each other, wherein rotor (5) magnetic levitation relative to stator (3) under action of magnets (9, 11) occurs during rotation. Rotor (5) has circular shape, around rotor (5) electrically conductive coil (19) is wound, and rotor (5) rotates inside coil (19).EFFECT: technical result is electric energy generation increased efficiency.27 cl, 3 dwg

Kit to assemble universal construct intended for installation into telecommunication cabinet // 2605201
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used in metal cabinets with doors and walls for arrangement of components of electrical and electronic devices known as telecommunication cabinets, as well as in other devices of similar design and purpose. Proposed is achieved by that a kit to assemble the construct intended for installation into the telecommunication cabinet consists of n-amount of metal modules, height of which is 1U-tuple. Upper and lower edges of the rear wall of the module have ledges, on which there are holes for connection with further modules by means of screws and nuts, herewith on the side and the rear walls of the module perforation is made with the pitch of 1U and a shape, which enables to set the nut from inside the module.EFFECT: technical result is provision of structural flexibility of the proposed technical solution, the possibility of scaling, ease of assembling finished products, ease of operation of the construct.10 cl, 2 dwg

Synchronous hysteresis motor electric power supply device // 2605088
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used for control in electric drive with synchronous hysteresis motors. Device for synchronous hysteresis motor electric power supply contains inverter, current sensor, included into inverter output current circuit, driving oscillator and synchronous hysteresis motor rotor instantaneous speed low-frequency component selecting unit, which input is connected to current sensor output, and its output is to driving oscillator frequency control input and inverter output voltage value control input.EFFECT: technical result is active power continuous oscillations occurrence prevention in all synchronous hysteresis motor operating modes.1 cl, 1 dwg

ethod and apparatus for feeding electric energy into electric supply grid // 2605085
FIELD: electricity.SUBSTANCE: invention relates to electrical engineering and can be used to control an electric power generator, which is connected to an electric supply network in a network connection point. Method of controlling electric power generator (1), connected to electric supply network (4) in network connection point (2), comprises steps of: detecting at least one network property of electric supply network (4) related to network connection point (2), controlling generator (1) such that it feeds power into electric supply network (4) depending on detected network property.EFFECT: providing stability of network by preventing loss of stability of network.19 cl, 9 dwg

ethod for eliminating electric arc driven by at least one phase voltage source of inverter circuit // 2605082
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering and can be used in power converters. Method for eliminating an electric arc that is driven by at least one phase voltage source (3) of inverter circuit (1), which comprises inverter unit (2) and energy storage circuit (4), wherein least one phase voltage source (3) is connected to inverter unit (2) on alternating voltage side, inverter unit (2) having a plurality of controllable power semiconductor relays, an electric arc produced during operation of inverter circuit (1) is detected and at least one phase voltage source (3) is short-circuited. In order to detect electric arc, either a state variable of inverter circuit (1) is monitored for a definable threshold value or alternatively surroundings of inverter circuit are optically monitored for occurrence of an electric arc. If an electric arc is detected, at least part of controllable power semiconductor relays of inverter unit (2) is controlled such that at least one short circuit path across inverter unit (2) is produced to short-circuit at least one phase voltage source (3).EFFECT: high efficiency of elimination of electric arc occurring in inverter circuit.4 cl, 4 dwg

ethod of inspecting multiple electric wires of bundle of wires // 2605081
FIELD: electrical engineering.SUBSTANCE: invention relates to electrical engineering. According to invention method of inspecting bundle (2) of wires, including multiple electric wires (4), wherein bundle (2) of wires is prepared for transmission of electric energy generated by wind generator (100) includes following steps: measurement of temperature of at least two electric wire (4), comparing temperature and detecting whether two temperature values differ from each other by more than one preset value.EFFECT: reduced susceptibility to breakdown by inspecting multiple parallel wires.14 cl, 2 dwg

Device for image recording and storing // 2605076
FIELD: information technology.SUBSTANCE: invention relates to a device for image recording and storing in form of wiring accessories. Device for image recording and storing is disclosed in form of mounting device (1) of hidden wiring mounted into standard instrument socket of hidden wiring, with plinth (3) for hidden wiring, central panel (4), as well as with protective frame (5), with power supply unit (7) from the mains power, including connection (8) to external voltage source, to processing electronic equipment (9), to which camera unit (10), including optics, as well as a data storage (12, 13+14) are connected, wherein camera unit (10) records mounting device (1) surrounding image for its storage in data storage (12, 13+14).EFFECT: technical result is creation of hidden and built in usual houses and buildings installation system of observation, particularly of internal rooms.9 cl, 12 dwg

Device of three-phase asynchronous engine of the increased mechanical power // 2604982
FIELD: electrical engineering.SUBSTANCE: present invention relates to electrical engineering and can be used in three-phase asynchronous electric machines with rotor excitation from permanent magnets. Device of three-phase asynchronous motor includes stator with symmetric three-phase double-layer winding and rotor with short-circuited winding and two diametrically located slots in which are placed opposite radially magnetized permanent magnets from NdFeB alloy.EFFECT: technical result consists in increasing of specific power and reducing of electromagnetic torque of the electric motor.1 cl, 2 dwg

Load capacitor charge current limiting device at connection to ac network // 2604883
FIELD: electrical engineering.SUBSTANCE: invention can be applied to electrical engineering. For this purpose, charging current limitation device contains following elements: first rectifier, second controlled rectifier on thyristors, current setting device, current controller, current measuring transducer, sawtooth generator, comparator, galvanic isolation device, isolating diodes and limiting resistors in thyristor control circuits, load capacitor connection terminals.EFFECT: technical result consists in increasing of reliability due to reduced current loads on feeding AC voltage source and load capacitor both during device switching on, and in device reloading modes by its output.1 cl, 3 dwg

Reactive motor having high rotor stability // 2604877
FIELD: engines.SUBSTANCE: invention relates to rotor for reactive electric motor, reactive electric motor having such rotor, vehicle and also a method of making said rotor. Rotor for reactive electric motor has a stack of sheets of multiple electrically insulated from each other layers, each of which has at least one having magnetic conductivity of sheet of rotor, and wherein said at least one sheet of rotor is formed in a set of multiple sections of direct conductivity, which are separated by nonmagnetic area. In at least one recess of stack of sheets there is a non-magnetic support element, which is configured to fix each located radially inside and adjacent to corresponding recess section of direct conductivity against displacement in radial direction outwards. At least between two layers there is a plate made of nonmagnetic material, which is connected to each support element. Said plate is made in form of potting compound-filled cylindrical separate area.EFFECT: technical result is providing high torque and high rotational frequency.25 cl, 7 dwg
 
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