Method of generating electrodynamic pull
SUBSTANCE: invention is referred to electric engineering and it can be used for manufacturing of airspace carrier vehicles and space vehicles and drives for land transportation. Electrodynamic pull in direction of force momentum vector is generated by interaction of magnetic flux vector of closed core made of dielectric ferromagnetic material with electric-field vector orthogonal to it. The above interaction takes place in dielectric magnetic core between layers covering external and internal surfaces of the closed core.
EFFECT: improving pulling force and efficiency factor due to decrease of power supply 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 NC 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, the magician 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 task of the invention is to increase tractive effort 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 the power conversion 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 vector of the magnetic flux of the closed magnetic core made of a ferromagnetic dielectric material, orthogonal to it by the vector of electric field intensity in the dielectric magnetic circuit, the current between the metal plates covering the external and internal surfaces C is msnotoko of the magnetic circuit.
The invention is illustrated in the drawing.
In Fig. 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 dielectric ferromagnetic material, with the excitation winding 3 connected to the terminals of an alternating voltage power source 1. On the inner and outer surfaces of the magnetic core 2 are metal plates 4 and 5 in stripes, covering these surfaces. Plates 4, 5 are connected to terminals of an alternating voltage power source 1.
The device operates as follows. Through winding 3 connected to the terminals of the voltage of the power source 1, in the magnetic core 2 excite magnetic field vector of the magnetic flux:
where Uf- the voltage across the excitation winding of the vector of magnetic flux; w-number of turns in the winding; ω=2πf is the circular frequency power source, rad/s; f is the operating frequency of the power source AC, Hz.
Under the influence of an alternating voltage power source 1 between the metal plates 5 and 4 covering the outer and inner surface of the magneto is the wires 2, create in the dielectric medium of the magnetic vector of the electric field strength in the dielectric cores:
where U is the voltage between the plates, V; ε is the dielectric permeability of the magnetic circuit, f/m
As a result of interaction of orthogonal vectors f and E, changing with circular frequency (ω=2πf) of the power source 1 AC, get electrodynamic vector pulse power:
Ft=[f×]→[V·×·f/m]=[N·C], which for the time interval t=1 second effect 2f times the vehicle (not shown)equipped 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 electrical quantities: voltage for excitation of the magnetic flux or voltage, between the plates 4, 5 corresponding 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 of the ferromagnetic magnetic circuit the magnetic circuit of 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, which accordingly reduces the loss of electricity, as well as dielectric the Skye permeability of the magnetic circuit is substantially more than the magnetic gap of the inductor prototype, which also reduces the loss of electricity. All this increases traction force (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 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, characterized in that provide interaction between the vector of the magnetic flux of the closed magnetic core made of a ferromagnetic dielectric material, orthogonal to it by the vector of electric field intensity in the dielectric magnetic circuit, between the metal plates covering the external and internal surfaces of the closed magnetic circuit.
SUBSTANCE: method includes interaction of electric charges generated under the action of voltage of an alternating current source in the region of electrodes, the number of which is a multiple of two, mounted perpendicular to end surfaces inside a closed current conductor filled with an electroconductive medium - second-class conductor, with the electric field strength vector generated between metal plates, mounted in pairs on the end surfaces of the closed current conductor in the region of each electrode.
EFFECT: reduced loss of electric power, increase in pulling force and high efficiency.
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.
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
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: 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
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.
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: 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 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.
SUBSTANCE: invention relates to electrical engineering and is meant for generating electrical energy using an electromechanically actuated contra-rotating generator. A rotor and the contra-rotating generator are connected by two oppositely rotating disc rotors larger than the radius of a high-speed linear motor. Two oppositely rotating steps in form of double blocks are formed, lying coaxially and with a common axis of rotation. The inductor of the high-speed linear motor is immovably attached to the housing of the device and transmits counterrotation with angular acceleration to secondary elements through steps. As a result of this opposite rotation, two velocities and two moments are combined. The method is safe and cheap. The device is distinguished by high reliability, high power at low weight, low price, easier manufacture and operation.
EFFECT: increased power and efficiency.
2 cl, 1 dwg
FIELD: electric engineering.
SUBSTANCE: invention is related to electric engineering, to electromagnet mechanisms, and more specifically, to contactless magnetic reducers, and may be used as transmission device in mechanical systems with high resource of operation under impact loads. Magnetic reducer has rotor of fast rotation with permanent magnets (1), magnetised tangentially, wedge-like pole tips (2) with convex profiled surfaces inverted to working gap, non-magnetic bush (3) for fitting onto shaft of fast rotation (4). Magnetic core (5) with evenly installed teeth inverted to working gap, is fixed to body (6), with which hollow cylinders (7) are mechanically connected by non-magnet ring (10), which have alternating ferromagnetic and non-magnet elements. Rotor of slow rotation represents hollow cylinders (8) mechanically connected to shaft of slow rotation (9) by means of non-magnet disk (11) and has alternating ferromagnetic and non-magnet elements. Due to introduction of hollow cylinders of stator and rotor of slow rotation, magnetic reducer is produced with high transmission torque from alternating ferromagnetic and non-magnetic elements.
EFFECT: improvement of mass and dimensional parameters.
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: 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