Contactless method of powering electric vehicles. RU patent 2505427.
 Auxiliary converter for railway / 2494883Invention relates to converter installations and can be used in making railway vehicle power supply systems. Auxiliary converter comprises charging and primary contactors and charging resistor. Power section comprises step-up stage, resonance converter with transformer, output rectifier with capacitor at its output and inverters connected to using equipment. Control system comprises master and slave controllers, each being built around digital signal processor. Controllers receives and dispatches messages to higher level system, allows correct operation of both stages of power section, starting the auxiliary converter and its turn-off. |
 System and method for electric power contactless transfer to vehicle / 2490146Invention relates to electric transport and may be used for supply of trolleybuses, trams, electric vehicles, etc. Proposed system comprises power source, frequency inverter, resonance circuit, step-up HF transformer, one-wire traction line arranged in immediate proximity to vehicle electric power receiver, resonance step-down transformer, rectifier and inverter. Besides, it comprises shielded one-wire supply line arranged parallel to electric vehicle travel and connected with resonance step-up HF transformer. Said one-wire traction line is composed by isolated sections in length smaller than resonance wavelength. Proposed method comprises upping frequency and voltage, generating resonance electric oscillations in one-wire line and transmitting electric power by electric induction via receiver to vehicle. Shielded supply line is connected with every isolated section of traction line via electronic switch with control unit and vehicle location sensor arranged at section front and rear to connect shielded supply line with traction line at vehicle approach to section and disconnect it therefrom at its moving off. |
 Contactless power intake device and vehicle incorporating said device / 2488495Proposed device comprises power intake inductor 112 using electromagnetic resonance to receive electric power from power transmission inductor, receive electric power rectifier 140, terminator receiving electric power rectified by rectifier 140, resistor 144 and switch 146 connected in two power transmission lines to transfer power from power intake inductor 112 via rectifier 140 to terminator. Note here that said resistor and switch are connected in series between two power transmission lines. Control device changes connection switch in conducting state on locating power intake coil and into nonconducting state when electric power is transmitted from power intake inductor 112 via rectifier 140 to terminator. |
 Transmission of electric power to vehicle / 2481968Invention relates to electric railway transport. Electric power transmission means comprises electric conductor structure 12 to generate variable electromagnetic field to transmit power to vehicle. Said structure 12 comprises, at least, one line 1, 2, 3 for transmission of one AC phase extending along track and arranged so that, at whatever time moment, it creates a train of alternating magnetic poles (at line lengths 5) with alternating polarity. Note here that said train extends in direction of railway track. |
 Method and device for electrical energy transmission (versions) / 2474031Method for electrical energy transmission consists in development of resonant oscillations from a frequency converter in a circuit comprising two resonant circuits, two high-frequency transformers and a single-wire line between them, and transmission of resonant oscillations from a resonant circuit of the first high-frequency transformer to the resonant circuit of the second high-frequency transformer along a single-wire electric line insulated from ground, conversion of high frequency current into DC and then in an inverter into AC of industrial frequency. Electrical energy is transmitted symmetrically along a single-wire line in both directions by development of resonant oscillations from a converter-inverter at each side of the line, conversion of high-frequency current into DC and then into AC of industrial currency in a converter-inverter at each side of the single-wire line. The frequency converter is used as an inverter when receiving electrical energy, and the inverter is used as a frequency converter when transferring electrical energy. |
 Electric rolling stock reactive power compensator / 2467893Invention relates to electric railway transport. Compensator is designed to increase power factor of consuming equipment, particularly, AC electric locomotive with voltage zone-phase control. This device ensures equality between compensator power and electric locomotive reactive power Qel=QCRP in all operating conditions by smooth adjustment of compensator reactive power QCRP, and increased in locomotive speed by increasing voltage at its current collector. It comprises multiwinding voltage transformer connected with consuming hardware including rectifier-inverter converter and motor. Compensator comprises first and second reactive power sources with fixed LC-circuit parameters, current transducer, voltage transducer, clock pulse unit, and inverter control unit, inverter and booster transformer connected in series. Note here that consuming hardware is connected in parallel with voltage transformer via current transducer. Outputs of reactive power sources are interconnected. Secondaries of booster transformer are connected to third section of voltage transformer secondary. |
 Method to control voltage or current of rlc filter, data medium and transport facilities for application of this method / 2459346Method of immediate response control of voltage Uc or current Ii at the output of a strip filter RLC includes operations, where: the specified current value Iuc is calculated (92) at the average force Iu of DC current Iu, flowing through the first output point of the filter between moments ti and ti+1, at the same time the specified set value Iuc is established based on equations of filter discrete conditions so that the voltage Uc or linear current I1 are equal to the preset specified value of voltage U1c or linear current Iic at the moment ti+1; an electric converter is controlled (100) to produce a current Iu, which passes through a filter, and the average force Iu of which between the moments ti and ti+1 is equal to the set value of current Iuc. |
 Device for monitoring temperature and humidity of traction motors / 2456193Invention relates to electrical engineering and may be used in traction motor control systems. Proposed device comprises temperature and moisture pickups, measuring radio modules, signals relays, and measurement data processing unit. Measurement radio module has two measurement channels. One channel is connected with temperature pickup. Second channel is connected with moisture pickup. Said pickups are connected with said channels via flexible conductors. Measurement radio module case is furnished with protection against ambient and mechanical effects. Part of said case is made from radiolucent material. Measurement data processing unit represents a data collection terminal. Measurement radio modules are connected via signal relays with data collection terminal communicated via radio channel and transceiver with PC of repair depot automated workstation of repairman. |
 Electric locomotive drive with serial and mixed excitation of traction motors / 2444448Invention relates to railway transport and aims at perfecting electrical rolling stock traction DC motor drives. Proposed drive comprises traction DC motors with interconnected armature and excitation windings connected to "zero"-diode static exciter in serial electrical circuit, current limiting resistor shunted by fast-operation contactor and having one output terminal connected to circuit common point between armature windings negative output terminal and positive input terminal of excitation windings and the other end connected to feed diode cathode and first output terminal of connector connected in circuit of traction motor field attenuation. Motor field attenuation contactor second output terminal is connected via field attenuation resistor to common point of braking switch contact connection and inductive shunt. The latter is connected between common point of braking switch contact connection and field attenuation resistor on one side and, on the other side, it is connected with ground. |
 Device for power supply and control of electrically driven transport facilities / 2443578Invention relates to electrically driven transport facilities supplied by centralised power circuit or self-contained power source using contactless resonance electric power transmission systems. Single-wire line may be used not only in power supply system but in motion control system as well. Proposed device has its single-wire line electric power system is arranged along carriageway edges at the height of curb border between road and walkway. Note here that power receiver is located on electrified vehicle lateral side. In motion, electric power receiver stays in close proximity to power transmission single-wire line to supply electrified vehicles running on road and those running nearby, on walkways and road shoulders. |
 Cable system of electric power supply to mobile agricultural object / 2269854The device has a cantilever-slewing boom, cable-receiving drum with an electric drive, feeding cable, object movement velocity transducer, three feeding cable force monitoring sensors, two programmed setters of force on the feeding cable, two comparison units, logic control device, cantilever - slewing boom movement drive, the electric drive of the cable-receiving drum is made controllable. |
 Method of regrouping dc traction motors of electric locomotive with pulse control and system for implementing the method / 2283245Invention relates to starting and speed control devices of electric locomotives. When starting the electric locomotive, traction motors are regrouped so that first groups of series-connected non-switched over motors are connected in series, and pulse converter is connected in series with motors to increase fill factor to unity. Then magnetic flux of series-connected groups of motors is weakened, armature and field currents of motors are measured, and torque value is determined by value of field current and value of magnetic flux of motors by motor magnetizing curve. Basing on torque value and dependence of torque from armature current for one magnetic flux, value of motor armature current equal to field current is determined, motor speed is measured and, basing on motor field current, value of its magnetic flux is determined and motor electromotive force is calculated and new value of converter fill factor is found (calculated). Proposed task is solved by device containing first group of series-connected non-switched over motors connected by first output with contact system and second output through break contact of regrouping contactor with first output of second group of series-connected non-switched over motors equipped with pulse converters, each connected by input to second output of corresponding group of motors. Outputs of converters are connected in common point, each group of motors is shunted by back diode, and its field windings, by series-connected resistor and make contact of field weakening contactor. First output of second group of motors is connected to contact system and to break contact of regrouping contactor. |
 Adjustable-voltage transformer unit for ac electrified railway transport / 2295793Proposed transformer unit has three-phase transformer incorporating primary winding and secondary winding whose two finishing phase leads are interconnected to form common point and starting leads are designed for connection to supply mains. Novelty is introduction of two booster transformers; secondary winding of each of them has at least one voltage regulation device. Each booster transformer has finishing lead of its secondary winding connected to starting lead of respective secondary-winding phase of three-phase transformer and starting lead, to respective section of contact system. Common point of finishing leads of two secondary-winding phases are connected to track rail. |
 Device for control of traction dc electric drive / 2297709The device has a DC electric motor, whose armature winding and the excitation winding are connected by means of filter elements and a voltage converter to the contact system, and a brake resistor. The voltage converter is made in the form of an electric bridge, with two transistors shunted by reversed diodes series-connected to the first adjacent arms, and one transistor - to the second adjacent arms. The electric motor armature winding is connected between the center points of the first two adjacent bridge arms, and the excitation winding-between the leads of the bridge output diagonal. The brake resistor is connected to the armature winding of the electric motor by means of a transistor shunted by a reversed diode. |
 Method of and device to supply electric vehicles / 2297928Invention can be used to supply trolleybuses, electric cars, electric loaders, street cars, electric tractors, electric locomotives and other electric vehicles. Proposed method of vehicle supply provides for delivery of electric energy through high-voltage high-frequency converter and single-wire contact system to individual current collectors of vehicles. power is supplied to electric vehicle through air gap between insulated single-wire line installed I road pavement or ground near surface and current collector installed under bottom of vehicle from resonant single-wire power supply system using variable electrostatic field of 0.1-100 kHz and voltage in line of 0.5-500 kV. Voltage across current collector is reduced and converted into dc voltage, electric energy is accumulated and converter into mechanical energy to move vehicle. Device implementing the method contains power source to which frequency converter is connected, single-wire line for each traffic lane and current collectors of electric vehicles. Air gap of 0.1 - 50 ΠΌ is formed between single-wire line insulated from ground and installed in road pavement or in ground near its surface and current collector mounted under bottom of vehicle. Device includes two resonant circuits, one transmitting and one receiving, and tuned to equal frequency of f0 = 0.1-100 kHz. Input of transmitting circuit is connected to frequency converter and output is connected to current collector through resonant step-up transformer, single-wire line and air gap. Current collector is made in form of thin insulated sheet made of conducting material and is installed on vehicle parallel to single-wire line. |
 Method of and system to control power consumed by traction motor / 2304527Invention relates to method of control of power consumed by traction motor including current collector engaging with dc contact system supplied by substations arranged along rail track. Proposed method includes the following stages: measuring voltage Vcat of contact system near traction motor, measuring current Icat in contact system near traction motor, evaluation of no-load voltage Vcat0 of substation supplying power to contact system to which traction motor is connected, evaluation of maximum power supplied to contact system using equation Pmax=(Vcat0)2/4*R where R is resistance of contact system, and limitation of power consumed by traction motor by power limit Plim less than or equal to calculated maximum power Pmax. Invention relates also to system for implementing proposed method. |
 Method of and system to monitor and control power consumed by transport system / 2314215Invention provides method of monitoring and control of power and energy consumed by transport system, including electric vehicles. Proposed transport system has power supply including one or several power supply substations connected with external power supply system. Said substation or substations supply power to traction substations to supply sections of supply lines and current-collecting devices installed on vehicles. Each vehicle has power converter supplied with power from current collector which control power delivered to traction motor of vehicle. Simultaneously current value of electric power and/or energy consumed from external power supply system by substation or substations is measured. If power or energy consumed from external system tends to exceed preset threshold value, preset adjustable value is sent to one or more vehicles acting onto vehicle carry-on converter for temporarily reduce power and/or speed of rotation of traction motor. |
 Kind-of current monitoring system / 2316434Proposed system contains ac voltage pickup in contact system, dc voltage pickup in contact system whose output circuits are connected to matching and optical decoupling input unit, resistive-capacitive voltage divider connected in parallel to primary side of dc voltage pickup in contact system, kind-of-current selector connected to matching and optical decoupling output unit, and also compressed air pressure transmitter, quick-acting air circuit breaker state transmitter, main circuit breaker state transmitter, actuating elements state transmitters of kind of current monitoring system connected to matching and optical decoupling input unit, microcontroller whose ports are coupled with matching and optical decoupling input and output units, indicating unit connected to matching and optical decoupling output unit, nonvolatile memory electrically coupled with microcontroller, interface connecting kind-of-current monitoring system with microprocessor locomotive, actuating elements (intermediate relays) of kind-of-current monitoring system connected to matching and optical decoupling output unit, heating unit which provides heating of device of kind-of current monitoring system in winter period. |
 Way and control mean supply of cable of system of electric-power supply of mobile agricultural installation / 2325022At automatic steering of cable supply carry out continuous monitoring of the informational parameters such as moving speed of mobile agricultural installation, the mechanical force originating in a supply cable at moving of mobile agricultural installation, and production of control actions for management of the electric drive of arrow turning and the electric drive of cable-receiving drum, thus, force on a supply cable is estimated in characteristic points of a route of its passage and control actions are definitely produced. The device of automatic control of a cable feeding system of mobile agricultural installation consists of arrow, cable-receiving drum with the electric drive, supply cable, the sensor of speed of installation movement, three control sensors of force to a supply cable, the memory block, the block of rules, the computing actuation device. |
 System of controlling mobile agricultural object / 2332824System has a power source, single-wire line, current collector, fitted under the bottom of the mobile object. A frequency converter, resonant step-down transformer, rectifier and an accumulator are connected to the power source. In the control system, the output of the sensor for displacement of trajectory to the left is connected to the first input of the computer control device. The sensor for displacement of trajectory to the left is connected to the second input of the computer control device. The sensor for determining the speed of motion is connected to the third input of the computer control device. The sensor for rotation of the wheel is connected to the fourth input of the computer control device. The first output of the computer control device is connected to a traction motor. The second output of the computer control device is connected to the electric motor for rotating wheels. |
FIELD: electricity.
SUBSTANCE: mains electric power is converted by frequency and voltage stepping up; current and voltage resonance is generated in the transmitting supply system at the natural resonance frequency of the electric circuit of the vehicle. Electric power is transmitted in resonance mode through an insulated high-frequency feeder to a transmitting coil (9), situated in the road surface and made in form of a flat rectangular single-layer coil of insulated wire. First and second receiving coils (14) and (21) are mounted on the electric vehicle and are in form of helical coils arranged around two rubber wheels. A third rectangular receiving coil (24) is attached to the bottom of the body of the vehicle and placed parallel to the road surface. Electromagnetic energy from the receiving coils is transmitted through a rectifier to an electric energy storage in which electric energy is converted to dc or ac energy and transmitted to a power supply and control unit (29) for the electric vehicle for powering drive motors (30). Traction motors are mounted directly in wheels in form of motorised wheels or on the chassis of the electric vehicle.
EFFECT: high reliability and electric safety and high efficiency.
1 dwg
The invention relates to electric transport and can be used for non-contact power electric power electric cars, trolleybuses, trams, electric loaders, , electromobile feed distributor and other electric vehicles.
There is a method of supply rail means of providing for the supply of electrical energy on a single-wire contact network through current collector vehicle, transformation of electric energy network and its supply at the traction motors (A.S. The USSR β1729843, MKI 60L 9/08, BI β16, 1992).
The disadvantage of this method power tools is a large metal device for implementing the method containing the contact network and rails. Another disadvantage is that you cannot use this method to supply transport, for example, the electric car.
Known way to power electric vehicles, providing for supply of electricity from high-voltage, high-frequency inverter and single wire network to vehicle through an air gap between the transmitting isolated single-wire line, located in the road surface, and established under the bottom of the funds.
Voltage lower it converts the DC voltage to accumulate electricity and convert the mechanical energy of movement of the vehicle (RF patent β2292928, IPC 60L 9/10, BI 12, 2007).
Disadvantage of this method is the low efficiency of the transmission of electromagnetic energy due to the small area of a single cable, the large loss of high frequency energy on radiation associated with the need to create a high intensity electromagnetic field, low reliability of power supply funds.
Object of the present invention is to create a non-contact way to power electric vehicles, possessing the high efficiency of the transmission of electric energy, increase of reliability of power supply, reduction of losses of electromagnetic energy on radiation transfer, electro-magnetic security system power funds.
The technical result is achieved by the fact that the energy of the electric network convert by increasing the frequency and voltage create resonance oscillations of voltage and current in the transmitting supply system at the resonance frequency of the electric circuit products, electrical energy is served in a resonant mode to isolated high-frequency feeder in transmitting coil located in the pavement and made in the form of a flat rectangular single-layer winding of insulated wire, with a shift in winding of each round of the wire diameter, slotted rectangular transmitting coils winding placed on the direction of tools, create in both parts of the transmitting winding by unidirectional transmission in variable electric current of high frequency alternating magnetic field, with the vector density of electromagnetic energy of alternating electromagnetic fields orientate mainly in places of prospective location of the wheels funds with foster windings and directed perpendicular to the direction of traffic funds up from the transmitting coil winding, while short lateral transmitting coils winding deepened and placed in layer below longitudinal, and the first and second reception winding have the tool and are in the form of spiral coils, placed on the circumference of the two rubber wheels funds, moving along the roadway or is there without motion, take the first and second foster windings is in motion or while stopped means of electromagnetic energy, which is served through rectifiers in storage of electrical energy, while at the placed third rectangular receiving the winding made from insulated wire, placed and mounted on plate, which is attached to the underside of the vehicle and have parallel to the road with the air space over the two parts of the transmitting coil winding, take the third rectangular reception in the process of winding movement or Parking means of electromagnetic energy that is fed through a rectifier in the storage of electrical energy, which convert received from the first, second and third foster windings of the electric power in electric energy of DC or AC and serves on the power supply unit and control means, to power the drive motors, and other electrical appliances the traction motors have directly in the wheels in the form of motor-wheels, next to foster windings, or on the chassis products, provide kinematic connection of traction electric motor driving wheels, the transmitting winding feature in the pavement sections, comfortable for its installation and connection to the feeder cable and power supply, as well as for the implementation of counter-parallel motion of electric vehicles, the adoptive winding, installed on the vehicle, spatial feature in the zone of the vector of the electromagnetic energy flux density of the transmitting coil windings of the first and second spiral foster windings perform and have on wheels parallel to the direction of motion funds plane of the transmitting coil and the plane of the earth and turns of the third rectangular reception winding perform and have perpendicularly to the direction of traffic funds and plane transmitting winding, tool in the process of movement is directed along the vector flux density of the electromagnetic energy transmitting winding, providing maximum transfer rate of electromagnetic energy, and transmitting winding stack in electric insulating protective layer, disposable in the road surface.
The essence of the proposed method is illustrated by the drawing, which shows the General scheme of the device, which implements the claimed method of contactless power electric vehicles.
The device contains a source of electric energy 1, adjustable voltage and frequency inverter 2 connected via a resonant condenser 3 with low-voltage winding 4 high-frequency resonant transformer 5, the high voltage winding 6 which output is connected with a high voltage line 7, which is used for electric energy transfer from the source to the consumer, and output of the high voltage winding 6 is linked to the land 8.
The transmitting coil 9 stacked in layer 10, placed in the road surface 11 sections, easy-to-install during the construction of road, winding 9 perform the coils of the same length and have the same horizontal plane with the shift to the laying of the rows on the value of the diameter of the magnet wire insulation. The direction of the electric current in all conductors transmitting winding 9 under the wheels of 15 and 22 with foster windings 14 and 21 are in the same direction, that the drawing is marked by crosses or dots.
Receiving foster windings 14, 21 and 23 from the transmitting winding 9 in the process of motion or rest means of electromagnetic energy, emit in foster resonant circuits, straightens, accumulate in the shared drive 18, is converted into electrical energy required format and via the power unit 29 power supply and control is served on the drive motor 30 funds, one; the total electric motor feature on the chassis means and through the transmission connect with the wheels or the required power of traction motors come directly to the wheels funds in the form of motor-wheels, with a total power unit of power and control.
Transmitting winding feature in the pavement sections, easy-to-install and connect to the feeder cable and power supply, as well as for the implementation of counter-parallel motion of electric vehicles, the winding coils have in parallel to the direction of traffic the short lateral transmitting coils winding deepened and placed in layer below longitudinal.
In the areas of road cover each section of the transmission of the windings connected via high-voltage line, high-frequency resonant transformer to the inverter power source. installation of transmission and switching of windings increases the operational reliability funds.
Switching foster windings and power supply of electric equipment power movement funds from site to site pavement with transmitting windings occurs when you see it in the area of energy services to this part of the road, the method of the energy switching is based on a special frequency tuning the transmitter and receiver resonant circuits.
The proposed non-contact way to power electric vehicles when laying transmitting winding in the insulating layer of road coating with protection from possible mechanical damage does not require the construction of contact networks, heavy foster cable reels or cable channels, high reliability, low energy loss during transmission and high transmission efficiency through the use of three receiving the windings, and also improves the electrical and electromagnetic safety.
Non-contact way to power electric vehicles, including the supply of electricity from the power source of high frequency broadcasting system located in the road surface and the reception of its electrical equipment products, characterized in that the energy of the electric network convert by increasing the frequency and voltage create resonance oscillations of voltage and current in the transmitting supply system at the resonance frequency of the electric circuit products, electrical energy is served in a resonant mode to isolated high-frequency feeder in transmitting coil located in the pavement and made in the form of a flat rectangular single-layer winding of insulated wire, with a shift in winding of each coil the wire diameter, slotted rectangular transmitting coils winding placed on the direction of tools, create in both parts of the transmitting winding by unidirectional transmission in variable electric current of high frequency alternating magnetic field, with the vector density of the electromagnetic energy of alternating electromagnetic fields orientate mainly in places of prospective location of the wheels funds with foster windings and directed perpendicular to the direction of traffic funds up from the transmitting winding, with short lateral transmitting coils winding deepened and placed in layer below longitudinal, and first and have the tool, and are in the form of spiral coils, placed on the circumference of the two rubber wheels funds, moving along the roadway or located on it without moving, take the first and second foster windings is in motion or while stopped means of electromagnetic energy, which is served through rectifiers in the storage of electrical energy, while at the placed third rectangular receiving the winding made from insulated wire, placed and mounted on plate, which is attached to the underside of the vehicle and have parallel to the road with the air space over the two parts of the transmitting coil winding, take the third rectangular reception in the process of winding movement or Parking means of electromagnetic energy that is fed through a rectifier in the storage of electrical energy, which converts received from the first, second and third foster windings of the electric power in electric energy of DC or AC and serves on the power supply unit and control for nourishment drive motors, and other electrical appliances the traction motors have directly in the wheels in the form of motor-wheels, next to foster windings or on the chassis products, provide kinematic connection of traction electric motor driving wheels, the transmitting winding feature in the pavement sections, comfortable for its installation and connection to the feeder cable and power supply, as well as for the implementation of counter-parallel motion of electric vehicles, the adoptive winding, installed on the vehicle, spatial feature in the zone of the vector of the electromagnetic energy flux density of the transmitting coil windings of the first and second spiral foster windings perform and have on wheels parallel to the direction of motion funds plane of the transmitting coil and the plane of the earth and turns of the third rectangular reception winding perform and have perpendicularly to the direction of traffic funds and plane transmitting winding, tool in the process of movement is directed along the vector flux density of the electromagnetic energy transmitting winding, providing maximum transfer rate of electromagnetic energy, and transmitting winding stack in electric insulating protective layer, disposable in the road surface.