Two-dimensional axial electric machine-generator
SUBSTANCE: invention relates to electrical engineering and may be used as electromechanical converter of mechanical power supplied to the mechanical input of the machine and electrical DC power supplied to the other electrical input of the machine to the total electrical AC power. The two-dimensional axial electric machine-generator contains armature with winding and brush-commutating set of DC machine. The rotor is implemented with squirrel cage winding. The armature and rotor can freely rotate with regard to each other and are axial. In addition, AC generator winding is coiled in the armature grooves with the output being connected to AC mains by means of the three contact rings and three brushes.
EFFECT: summation and conversion of mechanical power, for example wind power, and electrical DC power, for example solar power supplied from photoelectric converter, to electrical power of phase direct current but with more stable output parameters as compared to conventional electromechanical converters.
The invention relates to electrical engineering and can be used as an Electromechanical transducer mechanical energy supplied to one (mechanical) input machine, and electric power of direct current, at the same time supplied to the other input (electrical), total electrical energy of alternating current.
Known rotary DC amplifier (Kopylov I.P. Electric machine M.: Energoatomizdat, 1986, s-333), which increased electric power of direct current due to the applied mechanical energy.
However, this machine, being on the principle of steering electric power DC due to mechanical energy, cannot operate as an alternator, which converts two dissimilar source of energy, because of its purpose, because it is essentially an Electromechanical energy Converter DC.
A prototype of this invention is the input electrical machine (Patent RF №2091967, 1997, bull.№27, the authors Krasavin CENTURIES, Hitova T.B., Gitow KAPYSHEV).
Input electrical machine consists of laminated armature cores and the brush-commutator machine DC machine, placed concentrically in the annular laminated stack magnetophon the d of the rotor winding type rotor windings of asynchronous machines (for example, squirrel cage or wound rotor), and shrunk into the body, with the possibility of rotation around the laminated armature.
However, such a machine can only operate in motor mode, as a mechanical power amplifier or as a DC generator, which sharply limits the scope of application this machine.
In some cases, for example in alternative energy, when you integrated the use of two renewable energy sources (RES) (e.g., Solar and wind with inherent features is uneven and the stochastic nature of the flow of energy within a power system design of the Electromechanical energy Converter, which could convert two dissimilar kinds of energy, producing output total electrical energy of alternating current. The need for this type of Converter is the modern requirements of unconventional energy to the Electromechanical energy converters. Thus, in alternative energy has now developed the practice of traditional (classical) energy converters, generators, AC and DC, which convert one kind of energy (Solar, wind and others) into electricity.
This from retina solves the problem of summation and transformation of mechanical energy (for example, wind energy and electric energy constant current (for example, solar energy coming from photovoltaic cells) into electrical energy three(or more)-phase alternating current with a more stable electrical energy output than in the case of the traditional Electromechanical energy converters.
This is achieved by two-dimensional axillae electrical machine generator containing the armature winding and brush-collector machine DC machine and the rotor squirrel cage winding type squirrel cage, having the ability to rotate freely relative to each other, the rotor and the armature is made of the axial and in the slots of the armature additionally laid generator winding of an alternating current, the output of which is by means of three contact rings and three brushes connected to AC power.
1 shows a General view (in section) proposed a two-dimensional axial electric machine is a generator. Two-dimensional authors called machine based on well-established in the literature terminology: the machine has two rotating parts and two degrees of freedom - such machines in the world practice is called two-dimensional.
Two-dimensional axial electrical machine generator contains the anchor 1 axial design with coil 2, is laid in the grooves, face the howling collector 3 with brushes 4, connected to the wire 5, and additionally laid in the slots of the armature of the generator three-phase winding of the AC-9. Laminated axial magnetic rotor 10 in the slots which are stacked winding 11 by type axial rotor windings of asynchronous motors with squirrel-cage rotor. The winding 9 is connected to the rings 6, isolated from the body dielectric gasket 8 and the brushes 7 are connected with a network of customers with three-phase alternating current. Shields 12 with bearings 13, 14 and shaft 15 to provide axial location of the anchor 1 and the rotor 10 and the possibility of their simultaneous rotation. The shaft 16 directly connected with the rotor, provides the ability to supply mechanical energy to the rotor from the outside.
Two-dimensional axial electrical machine generator works as follows (figure 1). When applying a constant current (e.g., photovoltaic cells) through the brushes 4 and the collector 3 winding 2 anchor 1 is flown shock. This creates a magnetic flux of the reaction anchor fand. If the shaft 16 together with the rotor 10 and the coil 11 will come into rotation under the action of some externally applied moment (e.g. wind turbines), then under the action of the magnetic flux fandin the winding 11, as in an ordinary winding of an induction motor, induced EMF and electric that is, create its own magnetic field rotor fp. When the interaction between flows of fandand fpanchor the machine will come up in the rotation frequency nand.
As the field produced by the rotor winding fprotates in the opposite direction to the direction of rotation of the rotor at the same speed in space relative to the brushes motionless, therefore, in the air gap, there is a fixed field, which is the result of the addition of fields reaction anchors fandand rotor fp. If there motionless in space of the magnetic field and rotating parts in it design it can be used for the generation of electric power of alternating current.
To this end in the slots of the armature stacked three-phase (or more depending on how many phase system voltages need to get) generator winding AC 9, the output of which is with three slip rings 6 and three brushes 7 is connected to a network of consumers alternating current.
In a three-phase winding 9, rotating in a stationary magnetic field created by the flow fandand fpaccording to the law of electromagnetic induction, induced EMF is equal to
where ωp- angular velocity of rotation of the rotor, ψk- magnetic flux linkage of the coil winding 9. In the described processes happening is the summation of mechanical and electrical energy to the DC input, conversion and output on the output total electrical energy of alternating current.
Axial machine design allows you to maximize the moment of inertia of the rotor at minimum cost of active materials, which is important for smooth jumps receipt of mechanical energy, for example, when a sudden wind gusts, i.e. axial rotor plays the role of the inertial drive mechanical energy.
Experimental studies have shown promising applications of generators of this type in the Autonomous power supply system, based on the integrated use of alternative renewable sources of energy, such as Solar and wind within the same grid.
Two-dimensional axial electric machine is a generator containing the armature winding and brush-collector machine DC machine and the rotor squirrel cage winding type squirrel cage, having the ability to rotate freely relative to each other, characterized in that the rotor and the armature is made of the axial and in the slots of the armature additionally laid generator winding of an alternating current, the output of which is by means of three contact rings and three brushes connected to AC power.
SUBSTANCE: present invention pertains to electrical engineering and can be used in parametric machines in the electrical energy industry as electric generators and electric motors, for example on electrical power stations. The synchronous generator-compensator is a combined electrical machine, the circuit of which has an electronic frequency converter, with power corresponding to an asynchronous motor. On one axle of the synchronous generator-compensator there are series-arranged rotors of the drive motor, synchronous generator with a thyristor-type self-triggering system, and the asynchronous motor with a short-circuited rotor. The rotor of the asynchronous motor is in form of a flywheel with a large diameter, radius R and mass, which matches up the radius r and mass of the rotor of the synchronous generator, respectively, calculated using the mechanical resonance formula. The ratio R/r is chosen in accordance with the Fibonacci number sequence. The output of the synchronous generator and the input of the stator of the asynchronous motor are connected through a frequency converter, supplying the asynchronous motor with current, with discrete synchronisation of the frequency of current from the synchronous generator and frequency of the angular impulse of the asynchronous motor. The circuit of the frequency converter has massive capacitors, with provision for mechanical positive feedback from the rotor of the asynchronous motor to the rotor of the synchronous generator due to the single axle of the rotor of the asynchronous motor and the synchronous generator. The rotor of the asynchronous motor has ratio of the width to its radius in accordance with the Fibonacci number sequence, in succession to the chosen ration R/r. The diameter of the asynchronous motor is increased, corresponding to the rotor, with provision for clearance between the stator and the rotor of 1-3 mm. The method of operation of the synchronous generator-compensator is implemented, as is described in the material of the claim.
EFFECT: increased fuel saving in the drive motor, due to increase in moment of inertia on the system axle.
3 cl, 3 dwg
SUBSTANCE: invention can be used as electromechanical converter of mechanical energy delivered to one machine input (mechanical) and dc electric energy simultaneously delivered to its other input (electrical) into integrated dc electric energy. In electrical machine containing armature with winding and brush-collector unit of dc machine and rotor with short-circuited winding, over rotor winding of asynchronous motors that are able to rotate around each other, according to this invention a generator winding is additionally laid in armature slots. Output of this winding is connected by means of contact rings and brushes with net of alternating current consumers.
EFFECT: implementation of summing and converting of mechanical and dc electrical energy into electrical energy with simultaneous improvement of electrical energy parameters stability at output.
SUBSTANCE: rotor winding is performed as rotor windings of asynchronous machines with phase rotor in the circuit of which three-phase full-wave regulating thyristor rectifier unit is included. At that, output of this rectifier unit is connected in series with armature circuit using keys of switch unit that is able to perform either serial-additive or serial-subtractive connection with armature circuit depending on sign of armature rotation frequency change direction.
EFFECT: providing control for output rotation speed of two-dimensional electric machine and for frequency of generated by it voltage when input signals are continuously and indeterminantly varying.
FIELD: electrical engineering and power-driven transport; driving vehicles of all kinds.
SUBSTANCE: proposed electrodynamic propulsion unit has inductor, armature, and ac power supply. In addition, it has electronic device with three pairs of electrodes. Inductor is made in the form of wound magnetic circuit with armature-accommodating gap. One of windings is connected to armature; leads of other winding are connected to polarizing electrodes. Its midpoint is connected to cathode and grounded. Its symmetrical taps are connected to orthogonal electric field electrodes and in phase opposition, to polarizing electrodes. Third winding is connected to ac power supply and through voltage changer, to electric arc electrodes, and also through capacitors, to second-winding leads.
EFFECT: reduced cost; reduced adverse effect of electromagnetic field onto environment; enhanced efficiency.
1 cl, 1 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed energy conservation electric drive that can be used for rotary boring, measurement of liquid discharges through large-diameter pipelines, and pump delivery regulation in main pipelines has at least one ac squirrel-cage actuating motor incorporating two independent windings of which one is connected in delta and other one, in star; three-phase generator that functions as three-phase power supply coupled with prime mover, such as diesel engine or electric motor; and automation system incorporating rectifier for varying parameters of dc current from control system, its output being connected to leads of three-phase generator inductor windings, as well as comparison device that generates control signal and is connected through its output to rectifier input and through inputs, to controlled variable setting element and sensor installed on controlled entity, such as on motor shaft. Eliminating operating instability zone and enhancing shaft starting torque, as well as extending range of shaft speed variation have made it possible to improve mechanical characteristics of electric drive.
EFFECT: enhanced efficiency and operating reliability, reduced mass and maintenance charges.
7 cl, 4 dwg, 1 tbl
FIELD: mining; electricity.
SUBSTANCE: birotating power generator contains, at least, one attachment point, an external rotor with a birotating hydraulic turbine and excitation magnets, a stator with an excitation winding installed thereon and an electrical connector. The birotating power generator is characterised by that the magneto-permeable division walls are hermetically sealed by an inner chamber of the stator and an external rotor. Driven magnets of two face clutches are set on both sides of division walls. Upper middle rotor with the driven magnets and an inner shaft are concentrically installed on bearings made inside the external rotor. Leading magnets of face magnetic clutches are installed in front of magneto-permeable division walls inside the inner chamber of the external rotor. Driven magnets of face magnetic clutches are installed in front of magneto-permeable division walls inside the inner chamber of the stator. In this case, driven magnets of internal face magnetic clutch are placed on lower internal shaft, driven magnets of external magnetic clutch are placed on lower middle shaft and excitation magnets are placed on lower internal shaft.
EFFECT: increased power of generator; smaller diametric dimensions and weight.
6 cl, 2 dwg
FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, in particular, to production of electric machines running either in a generator or a motor mode. This invention allows a simplification of laying the end face winding, concentration of magnetic flux, wasteless production process, maximum torque, better cooling, higher frequencies at low speeds, modular design. The features above result from making the stator with crosswise packed plates and arranged across the stator inner and outer parts wound up from silicon-sheet steel to form rings between which the winding reinforced with a compound is arranged, while the stator plates are made with and identical inner and outer shape and are fastened from inside by disks, and from outside, by two rings to form a stator module. Similarly, the rotor is made. Its inner disks are fitted on the shaft to form a rotor module, while a toroid-like magnet, or segment-shaped magnets magnetised in radial sense, or excitation winding generate a magnetic field for the rotor.
EFFECT: simple laying of the end face winding, maximum torque, better cooling, higher frequencies at lower speeds, modular design.
5 cl, 10 dwg
FIELD: electricity, electrical engineering.
SUBSTANCE: invention refers to electrical engineering and can be applied in electric machines for power supply of well logging equipment. Technological result implies reduction of diametric dimensions and weight. Generator is equipped with container housing and at least one fastener assembly, electrical connection, main rotor with main turbine, stator, exciting winding and permanent magnets. Auxiliary rotor is equipped with spindle passing inside and is supported in line with main rotor. Turbine is birotating. Permanent magnets are mounted on main rotor, and exciting winding is inside of permanent magnets, on spindle of auxiliary rotor. Noncontact electric-power transmission device is designed as primary winding, mounted on spindle of auxiliary rotor, and secondary winding, mounted inside of stator. Exciting winding is wired to primary winding of noncontact electric-power transmission device. Both rotors are sealed hermetically relative to each other and relative to stator with face seals in stator. Stages of birotating turbine are mounted nearby in central part of generator. Stator consists of upper and lower parts, mounted respectively in upper and lower supports with canals for drilling agent. Winding is wired to electrical connection through holes in stator. Inner hollow of generator is lubricant filled. Lubricant passage is on the top, and electrical connection is on the bottom.
EFFECT: power generator of well logging equipment is improved due to reduction of diametric dimensions and weight.
5 cl, 1 dwg
FIELD: electric engineering and electro-mechanical engineering, namely - engineering of end asynchronous machines with one stator and two rotors.
SUBSTANCE: in end electric machine, which contains stator including a disk held on the body, winding modules, facing corresponding disk-shaped rotors with short-circuited windings with working surfaces, which rotors are positioned on two sides of stator and installed in roller bearings, in stator disk slits for winding modules are made, edges of which (bends) of two adjacent slits are oriented towards one side of disk, and of two next slits - to opposite side, wherein winding modules are positioned in such a way, that between two packets of plates of one winding module one packet of plates of two adjacent winding modules is positioned on opposite side of disk, also, on stator disk in gaps between slits for winding modules slit-like recesses are made in radial direction, which ensure reduced power losses.
EFFECT: increased manufacturability of an end electric machine, with simultaneously increased energy characteristics and reduced material costs of electric machine.
FIELD: electric engineering, namely, engineering of electric machines, which may be used as motors and/or generators of alternating and constant current for industrial and home application.
SUBSTANCE: electric machine contains body, power supply, electric magnetic inductor positioned on the shaft, anchor held on the shaft having collector and electric brushes and surrounding the electric magnetic inductor, and also additional magnetic inductor, positioned inside electric magnetic inductor and made in form of constant magnetic with different poles. In accordance to second variant, electric machine contains a body, power supply, magnetic inductor positioned on the shaft, anchor held on the shaft having collector and electric brushes and surrounding the electric magnetic inductor, and also additional magnetic inductor in form of different-pole constant magnets and positioned between anchor and electric magnetic inductor coaxially with them. According to third variant electric machine contains a body, power supply, electric magnetic inductor and additional magnetic inductor in form of constant magnets, serially positioned on shafts, and also two anchors, positioned on the side of free ends of magnetic inductors.
EFFECT: increased energy characteristics of electric machine while simultaneously ensuring its efficiency when it is used either as generator or as electric motor, and also simplified manufacture of electric machine.
3 cl, 10 dwg
FIELD: electric engineering, namely, electric machines, which may be used as motors and/or generators of alternating or constant current for industrial or home use.
SUBSTANCE: electric machine contains body, power supply, anchor held on the shaft and having collector and electric brushes, two magnetic inductors with collectors, held on their own shafts, where magnetic inductors are positioned on the side of anchor ends oppositely to one another. The machine according to second variant contains body, power supply, internal magnetic inductor with collector, positioned on the shaft, anchor positioned on the shaft and having collector and electric brushes and surrounding the internal magnetic inductor, and also additional external magnetic inductor with collector, positioned on external side of the anchor coaxially with the anchor and internal magnetic inductor.
EFFECT: increased efficiency and/or productivity of electric and mechanical energy when electric machine is used simultaneously as electric motor and generator.
2 cl, 8 dwg
FIELD: transport mechanical engineering; miscellaneous mechanisms using electric motor with regulated output shaft.
SUBSTANCE: proposed motor provided with electromechanical gear-ratio regulator has fixed stator 1; revolving rotor 2; planetary differential whose drive carrier functions as motor frame and mounts pair of satellites 3, 4; two central wheels 5, 10; and additional rotor 15. One central wheel 5 transfers energy through shaft 9 to moving member, for instance to vehicle wheel; other central wheel 10 imparts rotary motion to additional rotor 15 inductively coupled with stator 1. Additional rotor 15 generates electric current while returning energy to motor. Force produced in the process brakes additional rotor through differential arm and re-distributes speed of central gears among differential arms.
EFFECT: ability of stepless output shaft speed variation while varying gear ratio throughout entire speed control range depending on load; enhanced efficiency, facilitated control.
1 cl, 1 dwg
FIELD: electric engineering, namely - electric machines with magnetic systems on constant magnets, possible use in compact power plants, electric propelling system motors of sea vessels, submarines with unique vibration-noise characteristics, compact constant current energy systems.
SUBSTANCE: in the modular gating electro-mechanical transformer, comprising n concentric hollow cylindrical stators (hereinafter - stators) with n m-phased windings positioned on their external electrically isolated cylindrical side surfaces, n concentric hollow cylindrical rotors (hereinafter - rotors), mounted with one of their bases on the internal end surface of carrier disk, connected to the shaft, mounted in bearings, one of which is positioned inside the body of electromechanical transformer, rotor position sensor, mechanically connected to the shaft, and also magnets, positioned on the side of internal cylindrical side surfaces of rotors, forming n tangential magnetic systems, positioned with radial gaps above m-phased windings of stators, in accordance to invention, each one of n tangential magnetic systems consists of pn parametric magnetic induction stabilizers in the gap between rotor and stator, installed on internal surface of rotor through nonmagnetic locating block and positioned serially along the circle of rotor facing each other with poles of the same name, which form poles of the tangential magnetic system, and has a common cylindrical magnetic conductor on stator, where each one of parametric stabilizers is made in form of tangentially magnetized rectangular prism of magnet with two symmetrically shaped polar caps tightly adjacent to its oppositely magnetized surfaces, aforementioned caps being made of laminated magnetically soft material, same as material of the common cylindrical magnetic conductor.
EFFECT: creation, for sea vessels and submarines, of a nominal row of electro-mechanical transformers with specific power for a unit of volume and weight being several times higher compared to existing ones, with small axial length, dimensions and weight, with weak reaction of magnetic system to load current and with rigid proportionality of torque to load current, and also with low pulsations of torque in terms of rotor rotation angle, making it possible to ensure unique vibration-noise characteristics of submarines.
10 cl, 5 dwg
FIELD: electrical engineering; direct- and alternating-current motors and generators for industry and domestic appliances.
SUBSTANCE: proposed electrical machine has power supply, magnetic inductor with shaft-mounted commutator disposed within frame, and two shaft-mounted armatures with respective commutators and brushes; armatures are disposed in opposition on butt ends of magnetic inductor. Electrical machine of other design alternate has power supply, shaft-mounted internal armature with commutator and brushes, shaft-mounted magnetic inductor with commutator around internal armature, as well as additional external armature with commutator and brushes which is designed so that magnetic inductor is disposed between internal and external armatures.
EFFECT: reduced power requirement.
25 cl, 11 dwg
FIELD: electrical engineering; electrical transmission for vehicles including those incorporating combined power units.
SUBSTANCE: proposed electromechanical power unit that has ac motor whose rotor shaft is directly coupled on one end with output shaft of heat-engine and on other end, with drive wheel through clutch, gearbox, main transmission, and differential, semiconductor converter connecting stator winding to storage battery, and control system whose outputs are connected to control inputs of semiconductor is also provided with additional intermediate rotor inserted in stator-to-rotor clearance whose shaft, and not second end of main rotor shaft, is directly coupled with drive wheels through main transmission and differential.
EFFECT: simplified design and control, reduced mass and size, enhanced reliability, speed, and efficiency of electromechanical power unit.
1 cl 2 dwg