Method to develop electrodynamic traction
SUBSTANCE: electrodynamic traction in direction of the force pulse vector is created by interaction of the vector of magnetic induction in a closed magnetic conductor made of an electroconductive ferromagnetic material, with an orthogonal vector of electric dipole that arises in the electroconductive magnetic conductor between electrodes that cover the outer and inner surfaces of the closed magnetic conductor.
EFFECT: increased traction force, higher efficiency due to reduced energy losses.
The invention relates to electrical engineering and can be used to create aerospace vehicles and machines and drives land transport.
There is a method of creating an electrodynamic thrust implemented in an electrodynamic propulsion (patent RU No. 2013229, IPC B60L 11/00), the essence of which is that the electric power of the AC power source is converted into thrust force by interaction of an electric current flowing in the armature, the magnetic component of the displacement current generated in the space between the tires of the inductor. Thus, the thrust force acts on the anchor, located in the magnetic gap of the inductor, and moves the vehicle in the direction of the momentum vector of forces.
The main disadvantages of this method are the small thrust force and low efficiency due to the large energy losses caused by scattering of electromagnetic process on the wave resistance of the medium between the tires of the inductor, which is the anchor.
The closest physical essence is a way of creating an electrodynamic thrust implemented in an electrodynamic propulsion (patent RU No. 2270513, IPC H02K 51/00) and adopted for the prototype. In the prototype of the electric power of the AC power source is converted into thrust by the interaction of the magnetic field in the gap MAGN is toprovide coil with an electric current in the armature, located in the magnetic gap of the inductor and mechanical contact with the magnetic core of the inductor. Due to thrust the vehicle moves in the direction of the electrodynamic vector of the force impulse.
The magnetic circuit substantially reduces the scattering of electromagnetic process, reducing power losses compared with similar, but still in the prototype provides little traction and low efficiency, which is caused by the loss of electricity on a large magnetic resistance of the medium in the gap of the magnetic circuit of the inductor, which is the anchor.
The objective of the proposed method is the reduction of energy losses, increase traction and increase efficiency.
The problem is solved by the fact that in the known method of creating an electrodynamic thrust in the direction of the momentum vector of forces, the transformation of the electric power source AC through the interaction of the magnetic field in the magnetic core of the inductor and the electric field according to the invention, allow the interaction of the magnetic induction vector of the closed magnetic circuit made of electrically conductive ferromagnetic material, orthogonal to it by the vector of the electric dipole arising in the magnetic circuit between the electrodes covering the external and internal surfaces zamknutoj the magnetic circuit.
The invention is illustrated in the drawing.
The figure shows the device, which can be implemented by the proposed method.
The device is a magnetic circuit consisting of the power source 1 of alternating current and a closed magnetic circuit 2, is made of electrically conductive ferromagnetic material, with the excitation winding 3 connected to the terminals of the DC power source 1. On the inner and outer surfaces of the magnetic core 2 are electrodes, respectively 4 and 5 in stripes, covering these surfaces. The electrodes 4, 5 are connected to terminals of an alternating voltage power source 1.
The method is as follows. Through winding 3 connected to the terminals of the DC power source 1, in the magnetic core 2 excite a magnetic field with magnetic induction vector:
where I is the current in the excitation winding, A; w - number of turns in the winding; µ is the magnetic permeability of the magnetic circuit, Ohm·s/m; l is the length of the magnetic path m
Under the influence of an alternating voltage power source 1, is formed between the electrodes 4 and 5 in the conductive medium of the magnetic circuit of the electric dipoles:
where U is the voltage on the electrodes;
g - conductivity is infoprovider, 1/Ohm;
τ is the pulse duration, power, s, τ=1/2f;
f is the operating frequency of the power source AC, Hz;
r - length of the electric dipole and the distance between electrodes, m;
As a result of interaction of orthogonal vectors, and q·r, changing with circular frequency (ω=2πf) of the power source 1 AC, get electrodynamic vector pulse power:
Ft=[B×q·r]→[A·Ω·s/m2×··M/W]=[N·C], which for the time interval t=1 second effect 2f times the vehicle, with this magnetic circuit, and drives the vehicle in the direction of the momentum vector of forces Ft.
When you invert the phase of one of the excitatory values of current or voltage corresponding to the vector and the momentum vector of the forces are reversed, and the vehicle starts to move in the opposite direction of the original.
Magnetic resistance conductive ferromagnetic magnetic circuit the magnetic circuit by the proposed method can be tens of times smaller than the magnetic resistance of the air or vacuum gap in the magnetic core of the inductor of the prototype, as well as the conductivity of the magnetic circuit 2 is substantially greater conductivity of the gap in mayprovide inductor prototype, which accordingly reduces the loss of electricity is energii, increase traction (vector pulse power) and increases the efficiency of the proposed method in comparison with the prototype.
The way to create an electrodynamic thrust in the direction of the momentum vector of the power conversion power source AC through the interaction of the magnetic field in the magnetic core of the inductor and the electric field, characterized in that allow the interaction of the magnetic induction vector of the closed magnetic circuit made of electrically conductive ferromagnetic material, orthogonal to it by the vector of the electric dipole arising in the magnetic circuit between the electrodes covering the external and internal surfaces of the closed magnetic circuit.
SUBSTANCE: in electrical machine the second armature winding is made combined and located in stator slots of the main magnet core; it is equipped with capacitor bank. Second inductor winding is also combines, multi-phase, short-circuited; it is located in stator slots of the main magnet core. The first winding of rotor is connected to toroidal windings of auxiliary magnet core of the rotor; the first winding of stator is connected to output of frequency converter which converts electric energy of current frequency of the second armature winding to required value of control frequency and delivers it to stator winding of the main magnet core in order to create excitation current and rotating electromagnetic field with this control frequency. Control frequency is set at the output so that frequency of output current is permanent notwithstanding frequency of drive rotation.
EFFECT: reducing weight and overall dimensions and improving cooling and ventilation systems.
SUBSTANCE: magnetic reducer comprises a stator with a magnetic conductor, having teeth, alternating hollow cylinders of the stator and rotor of slow rotation with ferromagnetic and non-magnetic elements, and a rotor of fast rotation with ferromagnetic and non-magnetic elements. At the same time, according to the invention, the magnetic reducer comprises a fixed inductor of magnetic field, arranged outside the tooth-slot area, and the number of ferromagnetic elements of the rotor of fast rotation is equal to the difference of the number of ferromagnetic elements of hollow cylinders of the stator and rotor of slow rotation. Due to availability of non-magnetic rings in the reducer, which connect hollow cylinders of the stator with the magnetic conductor of the stator, and a sealing disc, the reducer is made with tight separation of fast and slow rotation rotors cavities and as capable of torque transfer to a tight volume, and manufacturer of a fast rotation rotor in the form of a hollow cylinder made it possible to improve dynamic characteristics.
EFFECT: development of a reducer with tight separation of cavities of fast and slow rotation rotors, in which there is possibility to transfer torque into a tight volume, improved dynamic characteristics of a contactless magnetic reducer.
SUBSTANCE: axial cascade electric drive comprises two coaxially connected electric motors, besides, magnetic systems of two electric motors are made axial and are arranged in one body and on a common shaft, which is horizontally fixed in bearing units of the body, besides, by one side the stator of one electric motor is rigidly connected to the body, and on its other side between the three-phase winding and the shaft hole there are coils of controlled couplings, which are located oppositely to two rings of large and small diameters from a non-magnetic material, a rotor arranged on the bearing, at the other side of which there are ring-shaped slots, the free space of which is filled with a ferromagnetic powder. At the same time, according to the invention, the rotor of the other electric motor is arranged on the bearing and has a ledge in the form of a wide thin ring from the same material as the rotor itself, and enters the slot of the large diameter of the rotor of the other electric motor, providing when connected to the network of one coil of the controlled coupling rigid connection of the rotor of one electric motor with the rotor of the other electric motor, the stator of which is rigidly connected with the shaft, besides, between the rotor of one and rotor of the other electric motor there is a metal part arranged rigidly in the form of a hollow sleeve, with the ledge entering the slot of small diameter of the rotor of one of electric motors, providing when supplying voltage of the supply network to the other coil of the controlled coupling the rigid connection of the rotor of one of electric motors with the common shaft, which is the output one, and on the rotor of the other electric motor there is a ledge of magnetic material, which enters the body of the ferropowder coupling fixed on the body of the electric drive, besides, additionally comprising a current pickup device, the fixed part of which is rigidly fixed on the body of the electric drive, and the movable part is installed on the shaft and supplies electric energy for the widing of the stator rigidly connected to the shaft.
EFFECT: invention provides for getting high speeds of rotation, close to a double rated one at rated value of the torque value, or getting a double torque at rated speed of rotation for a different range of capacities of an electric drive with simultaneous increase of such drive operation reliability.
2 cl, 1 dwg
SUBSTANCE: magnetic gear comprises the following components installed coaxially on a single shaft: a rotor of quick rotation with permanent magnets and pole tips, on the other shaft by means of a non-magnetic disc there is a rotor of slow rotation installed in the form of at least one hollow cylinder, a stator comprising a magnetic core with teeth on its inner surface and at least one hollow cylinder mechanically connected by its one end to the body via a non-magnetic ring, permanent magnets of the rotor of quick rotation are magnetised tangentially and oppositely and are arranged between wedge-shaped pole tips, hollow cylinders of the stator and rotor of slow rotation have alternating ferromagnetic and non-magnetic elements, directed along the axis of rotation, at the same time the gear is equipped with a bearing shield installed on the shaft of the rotor of quick rotation and tightly and mechanically connected to the other end of the hollow cylinder of the stator arranged between the rotor of quick rotation and the hollow cylinder of the slow rotation rotor.
EFFECT: possibility to tightly separate cavities of rotors of quick and slow rotation, improved conditions of accurate assembly and operation of rotors of quick and slow rotation.
3 cl, 3 dwg
SUBSTANCE: invention refers to cascade electric actuators of rotational movement, which consist at least of two asynchronous motors of the same type, and can be used at creation of electric actuators with controlled rotation speed from nominal to double nominal at constant moment, or actuators with double moment at constant nominal rotation speed, as well as at creation of other types of electric actuators. Controlled cascade electric actuator includes two electric motors coaxially installed in housing, each of which consists of rotor and stator; besides, stator of the first electric motor is fixed on housing, and its rotor is fixed on its shaft; fastening rings two of which are fixed on the housing, and the other one is fixed on shaft of the first electric motor, electromagnetic clutches fixed on the housing of electric actuator, three-phase power supply system; rotor of the second electric motor is movable and installed so that it can be freely rotated relative to its shaft, and stator of the second electric motor is fixed on its shaft. Fastening ring rigidly fixed on housing of controlled cascade electric actuator on which there installed are three fixed friction semi-clutches one of which has the possibility of being pulled in order to fix the friction gasket (installed on the first shaft) of its movable semi-clutch sliding along splined recesses of electric motor shaft with freely rotating rotor; the other semi-clutch has the possibility of being pulled in order to fix to the same friction gasket of its semi-clutch entering the cavity of housing of movable rotor, which is coaxial to the above semi-clutch, and the third semi-clutch has the possibility of being pulled in order to fix to the other friction gasket fixed on the electric actuator housing of its semi-clutch entering the cavity of movable rotor housing, which is coaxial to the above semi-clutch.
EFFECT: improved design of cascade electric actuator due to operation improvement of system of electromagnetic clutches and power supply system of one of asynchronous motors, which provides obtaining of high rotation speeds close to double nominal, at nominal value of moment or obtaining of double moment at nominal rotation speed.
3 cl, 1 dwg
SUBSTANCE: accumulator contains a vacuumised housing, a fly-wheel in the form of a vertical cylindrical tubular rotor with a motor generator set with a stator and a drive disc. The support system is composed of a needle support bearing with a bearing socket in the lower part and a magnetic bearing with a permanent magnet in the upper part of the rotor. The supports rotary elements are attached to the partitions installed inside the rotor tube at a certain distance from its butt ends. The horizontal plane passing through the boundary of interaction between the support rotary and non-rotary elements cross the rotation axis in the unit of the rotor axle bend shape at the operating rotation rate. The accumulator housing is installed into an accumulator assembly.
EFFECT: reduction of aerodynamic losses in the vacuumised housing and losses in the rotor support units.
2 cl, 6 dwg
FIELD: electric engineering.
SUBSTANCE: invention relates to electric engineering, to electric energy and power plants, in particular, and may be used as a drive for all types of transport - land, water, air and space transportation and etc. The proposed propelling agent includes electron discharge device (1), filled with operating substance and electric arc electrodes (2, 3), control (4), operating (6) and polarising (8) electrodes. The induction coil is comprised of windings - primary (11), current (12) and electric arc (13) and core piece (14) having an armature (15) located in the clearance and connected with current coil (12) through three position switch (16). The ends of primary winding (17) are connected with polarising electrodes (8) and with the middle point (18) through sequential circuits of resonance capacitors (9) and with the middle point which is coupled with a cathode (3) and grounded. The electric arc coil (13) is linked with electric arc electrodes (2, 3) through voltage transducer (20) with its input having connections with a.c. power source (22). The control (4) and operating (6) electrodes are coupled with series circuits of resonance capacitors (9) with antiphase polarising (8) electrodes.
EFFECT: increased power, and reliability of electrodynamic propelling agent operation, as well as high reaction to operation control and transport control.
SUBSTANCE: electromechanic variator is made as electrically interconnected generator and electric motor. It is equipped with induction coils and excitation windings installed in alignment, one armature common for electric motor and generator with winding connected to its current collector. Magnetic flows of both induction coils cross armature winding and induce opposed electromotive forces in it. Variator driving shaft is connected to common armature. One of induction coils is stationary while the second one is rotary and connected to driven shaft of variator. Excitation winding of rotary induction coil has independent current collector. Depending on required direction of driven shaft rotation in regard to driving shaft this unit ensures possibility to connect excitation winding of rotary induction coil to independent direct current source or current collector of armature winding. At that excitation winding of stationary induction coil is connected to current collector of armature winding or to independent source of direct current respectively.
EFFECT: functionality enhancement.
4 cl, 2 dwg
SUBSTANCE: device to convert power interaction of a system of permanent magnets and a ferrimagnetic into mechanical energy according to principle of multiple use comprises at least two permanent magnets and a ferrimagnetic, at the same time one of the permanent magnets is installed fixedly, and the second permanent magnet is installed with the possibility of rotation relative to the axis, which is perpendicular to the main vector of polarisation, besides, the ferrimagnetic is connected to an actuating mechanism, which is an energy receiver and is installed with the possibility of reciprocal movement.
EFFECT: making it possible to convert power interaction of a system of permanent magnets and a ferrimagnetic into mechanical energy and further into other types of energy.
5 cl, 3 dwg
SUBSTANCE: invention relates to cascade electric rotary actuator drives and may be used for production of gearless drives with frequency adjusted from 0 to double nominal at stable nominal rotation speed including reversible and other type drives. The proposed controllable cascade electric drive contains two electric motors mounted coaxially on the housing. Each motor is composed of a rotor rigidly mounted on its shaft and a stator. The stator of one of the electric motors is designed as stationary and is mounted on the housing while the second motor stator is capable of free motion relative of the shaft. According to the invention concept, it additionally contains a fixture ring rigidly mounted on the shaft of the stationary stator motor. Mounted on the fixture ring are two e-magnetic clutches one of them capable of contact with the friction plate that has a projection fitting into the movable stator body concavity which is coaxial to the said projection. The other e-magnetic clutch is capable of contact with its friction plate and of connection, with the help of the said plate, to the movable stator electric motor shaft that has a splined recess for the friction plate to fit in. The working areas of the above two friction plates that come in contact with the above e-magnetic clutches are equal to provide for identical performance of the said e-magnetic clutches. Mounted on the drive housing is a third e-magnetic clutch capable of contact with a third friction plate that has a projection fitting into the movable stator body having a concavity which is coaxial to the said projection of the third friction plate.
EFFECT: extension of the range of the cascade electric drive adjustment due to provision for generation of high rotation speeds close to double the nominal one at constant torque value or possibility to generate a doubled torque value at constant rotation speed.
2 cl, 6 dwg
SUBSTANCE: invention relates to electric drives of carriers, said, scoters, bikes, electric vehicles, helicopters and aircraft. Proposed invention consists in adding extra internal magnetic core with teeth on vehicle drive motor stator body in case said motor is used as an inductor motor. In case external magnetic core with teeth is composed by inductor composed by permanent magnets, extra inner inductor with permanent magnets is fitted therein. Application of permanent magnets as the stator inner and outer inductors is required to ensure higher torque.
EFFECT: decreased consumption of electric power, higher torque.
SUBSTANCE: apparatus has an indicator surface, an indicator means and a control device. The control device is in form of an electronic data processing device. The control device detects input signals on the motion state of the hybrid car and outputs a generated signal to the indicator means with an indicator surface. The indicator surface has a braking area and an acceleration area. Information content of the indicator surface is given in form of an invariable indicator surface. The method involves detecting input signals on the motion state of the hybrid car, converting said signals to a predetermined output signal and transmitting the signal to the indicator means with an indicator surface. The actual braking or acceleration states are then indicated by the indicator means on the invariable indicator surface.
EFFECT: enabling a driver to pick up information on the motion state of a vehicle quickly.
7 cl, 3 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to automotive industry and can be used in vehicles incorporating electromechanical transmission wherein specific ICE fuel consumption is minimised owing to application of power accumulators. Proposed device comprises controlled fuel feed component incorporating ACS with feedback channels communicated with transmission elements and controlled electric power accumulator and flywheel-type power accumulator engaged with ICE shaft by controlled electromagnetic coupling. Control system control interaction of both accumulators in motion when traction motor consumes electric power and in braking when traction motor running in generator mode outputs power to drive system.
EFFECT: control system recovers power in turns at electric and flywheel power accumulators.
2 cl, 1 dwg
SUBSTANCE: cooling structure comprises vehicle body, storage battery assembly, cooling jacket and storage battery case. Storage battery assembly is secured to body frame element and arranged under floor panel. Said assembly comprises storage battery case and storage battery. Cooling jacket is secured to storage battery case top surface. Storage battery case comprises rear, mid and front parts. Rear part height is maximum magnitude. Mid part height is minimum magnitude. Front part is smaller than that of rear part. Cooling jacket is arranged at storage battery jacket front part.
EFFECT: efficient cooling of storage battery assembly top part.
12 cl, 9 dwg
SUBSTANCE: invention relates to setup of storage batteries mounted at the vehicle. Storage battery mount comprises first set of storage batteries and second set of storage batteries. First set of storage batteries comprises multiple storage batteries arranged in vertical stack. Second set of storage batteries comprises multiple storage batteries arranged across the vehicle.
EFFECT: optimum weight balance.
17 cl, 10 dwg
SUBSTANCE: set of inventions relates to automotive industry and may be used in traction electric drives of independent pneumatic-tired vehicles. Method of wheel propulsive force control for multiwheel all-wheel-drive vehicle consists in setting parameter preset values for traction motor regulation, measuring their rotation speeds, processing measurement results with regard to curvature of movement trajectory, and correction of set values by signals proportional to differences between electric motor speeds and their calculated maximum permissible speeds. The device comprises traction motors, voltage converters, power source, motor speed sensors, preset values generators for the first and the second regulation parameter, units for correction of preset values of the first regulation parameter, movement direction generators, unit for motor speeds adjustment to one motor, unit for selection of minimal rotation speed from adjusted motor speeds, unit for calculation of corrective signals, unit for calculation of limit values of converter voltages regulation coefficients.
EFFECT: higher electric drive efficiency.
6 cl, 4 dwg
SUBSTANCE: invention relates to railway transport, particularly, to control over transmission of electric power. Proposed method consists in setting rpm of heat engine driving sync traction generator, and varying the position of fuel feed proportioner of rpm controller and that of heat engine corresponding to its rpm. Said fuel feed proportioner position is set proportional to preset heat engine rpm to compare it with measured position while mismatch magnitude is integrated in time to set constant excitation current of sync generator. Said excitation current of sync generator is set to maximum as a function of measured position of fuel feed proportioner, measured fuel feed proportioner and its preset position mismatch is integrated in time and taken to ne appropriate setting of traction motor rpm to compare traction motor rpm with rpm setting. Results of comparison is amplified and taken to be setting corresponding to controlled rectifier output voltage setting and is fed to control input to control output voltage phase. Said output voltage is fed to traction motor input. Measured rpm of traction motors are corrected with due allowance for correction factors in selected time intervals whereat diesel locomotive runs in stopping mode.
EFFECT: higher efficiency.
SUBSTANCE: invention relates to electrically driven propulsion systems for transport facilities. Electrically driven propulsion plant comprises electric power source, main switchboard with generator, feeder and section circuit breakers, multiwinding transformers of frequency converter with primaries, input rectifier modules, isolator, DC link capacitors, inverters, and motor with two windings. One primary of said multiwinding transformers is connected in star circuit and another one is connected in delta circuit. Frequency converters for supply of every motor winding are integrated in common circuit by series connection of rectifier modules. Isolator is connected between extreme internal assemblies of rectifiers and capacitors of frequency converters feeding different motor windings.
EFFECT: higher reliability.
SUBSTANCE: invention relates to railway transport, particularly, to means of adjusting excitation current in electric transmission of diesel locomotive with self-contained heat engine, AC traction generator operated in diesel locomotive electric braking mode. Proposed method consists in setting heat engine rpm, exciting traction generator to be connected to circuit composed of braking motor excitation windings connected in series and to be loaded by three-phase bridge-type uncontrolled rectifier to excite braking traction motors. Motors rpm is measure, motor armature current is measured to be compared with setting to feed the comparison result to input of controlled supply rectifier so that excitation current may be adjusted. Results of said comparison are used to vary the structure of control system of traction generator excitation winding supply controlled bridge-type rectifier built around the thyristor.
EFFECT: higher reliability and stability of operation.
SUBSTANCE: invention relates to automotive industry, particularly, to power plants for hybrid automobiles. Proposed power plant comprises heat engine and two reversible electrical machines fitted on common shaft, electric power accumulator, current and voltage inverters, control unit, and operation mode selector. First electrical machine is coupled with heat engine while second machine is engaged with drive wheel drive shaft. Operation mode selector incorporates self-contained control unit. The latter is connected to power plant control unit and consists of two units. One unit makes the major power unit designed to receive drive power and to transmit it to drive wheels drive shaft. Another unit represents auxiliary unit designed to open/close power transmission circuit in changing operation modes.
EFFECT: higher reliability and longer life.
2 cl, 4 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to foot drive of electric transmission. Proposed small-size vehicle for individual use has base 1 with two driving wheels 3 connected through belts 29 of variable-speed drive with two electric motors 27 supplied by battery 8 and/or generators 11 with possibility of recuperation. Base 1 is hinge-connected with one- or two-axle bogie 4 with two generators 11. Generator armatures are rotated by pedals 14 provided with spiral rods 17 with pull-back springs 17 or equipped with levers and gears for rotating the armature.
EFFECT: increased distance covered without charging.
12 cl, 5 dwg