892 results about "Wireless power supply" patented technology

The invention discloses a new energy automobile wireless power supply soft switching control system based on a segmentation strategy, and particularly relates to the technical field of new energy automobile wireless power supply, and the control system comprises a resonance current zero-cross detection module which detects a resonance current output square wave signal of a resonance network in real time; the segmented control decision module is used for selecting a strong control strategy or a weak control strategy according to a comparison result of the smoothed frequency difference value and a preset threshold value; the segmented control execution module is used for adjusting the inverter driving frequency by adopting a corresponding control algorithm according to the output of the segmented control decision module; according to the new energy automobile wireless power supply soft switching control system based on the segmentation strategy, the segmentation control logic and the model and algorithm of the special module are designed, so that the driving frequency of the new energy automobile is adjusted, and the driving frequency of the new energy automobile is adjusted to be within the preset frequency locking range. And wide-range frequency locking, rapid dynamic correction and high-precision steady-state control are realized.

The invention provides an air-ground integrated reconfigurable intelligent surface energy transmission system, and belongs to the technical field of wireless power supply systems, and the system comprises a visual perception module which is used for obtaining image information of a monitoring area, carrying out the recognition and positioning of an energy receiving target based on the image information, and outputting a target coordinate; the control calculation module calculates phase regulation and control parameter coordinates required for driving the reconfigurable intelligent surface based on the received target; the energy transmission module dynamically adjusts the wavefront phase of the electromagnetic wave based on the phase regulation and control parameter coordinates to form an energy focus point at the position of the energy receiving target; the energy receiving module is arranged on an energy receiving target and used for receiving the electromagnetic energy at the energy focus point and converting the electromagnetic energy into direct-current electric energy. According to the invention, the three technical fields of high-precision real-time sensing, intelligent signal processing and advanced electromagnetic beam control are deeply integrated, and remote, high-efficiency and automatic charging for a plurality of freely moving devices is realized.

The invention relates to the technical field of wireless power supply, and provides a non-contact power supply transmission line, which comprises a transmission module and a mobile power taking module, and is characterized in that the transmission module comprises an excitation cable and a linear transmission unit, and the linear transmission unit comprises a plurality of linear stators along the transmission direction; the movable electricity taking module comprises a rotor and a first electricity taking piece, and the rotor moves under current excitation; the first power taking piece can act with a magnetic field generated by electricity around the excitation cable and generate current so as to supply the current to an electric element installed on the mobile power taking module. According to the non-contact power supply transmission line, the mover is driven to move in a magnetic drive mode, and in the moving process of the mover, the first power taking part can be always coupled with the excitation cable, so that electric energy is uninterruptedly obtained to be supplied to an electric element, and the first power taking part does not need to be in contact with the excitation cable when obtaining the electric energy, so that the power utilization efficiency is improved. The problems that power cannot be continuously supplied to the execution part, and the conveying continuity of the rotor cannot be guaranteed are effectively solved.

The embodiment of the invention provides an intelligent implantable wireless power supply kit. An intelligent implantable wireless power supply kit is applied to the field of wireless power supply and comprises a control module, a power supply module and a module support. The control module and the power supply module are both arranged on the module support and fixed to the inner side of a blood vessel through the module support. The control module is electrically connected with the power supply module. The power supply module realizes electric energy storage and power supply, and the control module processes and sends data. According to the scheme, the implantation difficulty of the wireless power supply suite can be reduced, compression of the module support is facilitated, necessary hardware support is provided for the implantable monitoring sensor, and the detection accuracy and precision are improved.

The invention discloses a gear dynamic parameter in-situ testing device based on wireless power supply. The gear dynamic parameter in-situ testing device comprises a wireless power supply system, a sensor, a data processing system, a data transmission system and an upper computer, the wireless power supply system is used for providing electric energy for the sensor and the data acquisition system; the sensor is used for collecting dynamic parameters of the gear; the data processing system is used for processing the gear dynamic parameters; the data transmission system is used for transmitting the processed gear dynamic parameters to an upper computer in a wireless transmission manner; and the upper computer is used for visually displaying the processed dynamic parameters of the gear. The problem of long-time test operation and maintenance of the rotating gear in a complex narrow space is solved, and long-time in-situ test of dynamic parameters of the gear can be ensured.

The invention discloses a wireless power supply communication network information age minimization resource allocation method and system, and belongs to the technical field of Internet of Things system optimizing.The method comprises the steps that scheduling decision variables of sensors in a wireless power supply communication network scene are defined; analyzing the information age change in the process of transmitting data to the base station by the sensor, and updating the information age of the data based on the scheduling decision and the data transmission result; the transmitting power and the scheduling strategy of the sensor are jointly optimized, and an optimization model is established with the purpose of minimizing the average information age of the system; and dynamically selecting the current optimal sensor for scheduling by utilizing a reinforcement learning algorithm, determining the transmitting power based on the energy state of the sensor, and iteratively executing until a reward function in the reinforcement learning algorithm is converged to obtain an optimal average AoI. According to the invention, while energy saving is ensured, the transmission success rate of the data packet is improved, the freshness of system information is improved, the service life of the Internet of Things terminal is prolonged, and the dependence on frequent charging and battery replacement is reduced.

A wireless multi-channel sensing device based on a rotating shaft and induction coils comprises a multi-channel flexible sensor layout module, a flexible wireless transmitting module, a pair of mutually coupled power supply coils, a primary power supply conversion module, a flexible wireless receiving module and a control module, according to the invention, a flexible wireless acquisition system is adopted, so that an acquisition and transmission system and a data receiving module system can be bent, a rotating shaft can be better attached to avoid instability of the system, and meanwhile, the size of a wireless coil is matched, and a communication position is reasonably configured, so that energy maximization is realized, and wireless power supply stability of the system is guaranteed; multi-line winding can be prevented in the rotating process of the rotating shaft, stable multi-channel data sensing collection and wireless data communication are achieved, wireless energy transmission maximization is achieved through configuration of the wireless coil, and the influence of signal distortion caused by rotating vibration during collection is effectively prevented. Therefore, weak electric signals such as strain and pressure can be recorded in real time with higher quality.

The present application belongs to the field of transmission technology, and discloses a multi-base station cooperative wireless energy supply energy efficiency evaluation optimization method and system and an electronic device. The present application constructs a passive Internet of Things system model of multi-wireless energy supply base station cooperative energy supply passive energy device; according to the passive Internet of Things system model, the statistical average energy collection efficiency of the passive Internet of Things system is defined, and the statistical average energy collection efficiency is taken as an evaluation index of the energy efficiency of multi-base station cooperative wireless energy supply; an optimization problem of maximizing the statistical average energy collection efficiency is constructed; the optimization problem is solved to obtain power distribution information of the multi-wireless energy supply base station corresponding to the maximization of the statistical average energy collection efficiency; and the multi-base station cooperative wireless energy supply is configured and optimized according to the power distribution information. The present application can meet the demand of multi-base station energy supply for long-term reliability of energy efficiency in practical application.

The invention discloses an underwater vehicle battery state monitoring system and a power supply system based on wireless communication, and the system comprises a wireless power supply unit which employs a circuit structure of LCC-S compensation topology and is used for achieving constant voltage output; the battery monitoring unit is used for acquiring voltage, current and temperature data of the battery in real time; the communication unit comprises an RS-485 communication module and a matched LORA wireless communication module, and after sensor data is converted into an RS-485 signal, the RS-485 signal is transmitted through the LORA module after being converted by a serial port; and the control unit is located at an undersea wireless charging station end and is used for receiving the data transmitted by the LORA wireless communication module and calculating a phase shift angle based on a phase shift control strategy so as to generate a PWM signal to adjust the output voltage / current of the high-frequency inverter. By means of the system, real-time monitoring of the battery of the underwater vehicle is achieved, phase shift control is conducted on output of the primary side of the undersea wireless power supply system according to the battery charging information, and the safety and reliability of battery charging of the underwater vehicle in the marine environment are guaranteed.

The invention relates to the technical field of communication power connection, in particular to a magnetic coupling connector assembly for deep sea wet plugging, which comprises a socket component and a plug component, wireless power supply coils and communication modules are arranged at the front ends of the socket component and the plug component, and a first annular magnet array is arranged at the front end of the socket component. A second annular magnet array is arranged at the front end of the plug component, and magnetic poles at the same position of the first annular magnet array and the second annular magnet array are oppositely arranged; and a rotary locking mechanism is arranged between the socket component and the plug component and is used for realizing mechanical locking through relative rotation after the socket component and the plug component are magnetically adsorbed. By adopting the design that the annular multi-pole magnet array and the mechanical rotary locking mechanism cooperate with each other, magnetic force provides adsorption force during butt joint and is converted into locking force after locking, self-alignment and high-reliability locking in the butt joint process are completed, and the technical effect of environment interference resistance is achieved.

The invention discloses a movable deep-sea seated AUV (Autonomous Underwater Vehicle) resident recovery base station based on acousto-optic guidance. The movable deep-sea seated AUV resident recovery base station comprises a base station main body frame, a moving mechanism of a plurality of vector propellers, a docking guide recovery device, a guide positioning device, a buoyancy module and an energy data transmission module, the docking recovery device is arranged at the top of the base station body and used for guiding connection in the vertical direction, and the positioning system comprises an acoustic guiding positioning device and an optical guiding positioning device and can achieve accurate positioning docking of AUV autonomous homeward voyage. A main body of the base station can unpowered sink to the seabed under the action of self gravity, movement is achieved through a plurality of propellers, and the base station is suitable for butt joint recovery of a seated AUV with a bottom round support and has the autonomous moving capacity, the energy supply function, the data transmission function and high adaptability. And after successful connection, the connection station performs underwater wireless power supply and wireless data transmission on the AUV residing in the deep sea, so that the flexibility and efficiency of the AUV working in the deep sea can be remarkably improved.

A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.

A power transmission device according to one embodiment of the present disclosure comprises a control unit that controls a power transmission unit that performs wireless power transmission. The control unit comprises: a means for identifying dynamic information relating to a power receiving surface that corresponds to a power receiving unit with which a target power receiving device is provided; a means for identifying static information relating to the power receiving surface; a means for referring to the dynamic information relating to the power receiving surface and the static information relating to the power receiving surface to generate control parameters relating to a radiation direction and a beam shape of a power transmission beam for supplying electrical power to the target power receiving device; a means for causing the power transmission unit to radiate the power transmission beam in accordance with the control parameters; a means for referring to a position of an edge in an image produced by imaging of an area around the target power receiving device and monitoring entry of biological bodies or objects into an entry-prohibited space arising in an area around a route of the power transmission beam; and a means for stopping radiation of the power transmission beam if entry of a biological body or an object into the entry-prohibited region has been detected.

The invention provides wireless energy supply equipment and a wireless energy supply method of a nerve stimulator. The wireless energy supply device comprises a transmitter used for transmitting energy supply electromagnetic waves to a nerve stimulator and improving the transmitting power of the energy supply electromagnetic waves; the impedance calculation unit is electrically connected with the transmitter; impedance calculation unit for monitoring a reflected impedance corresponding to the nerve stimulator according to an input current and an input voltage of the transmitter, maintaining the transmitter constant at a transmitting power corresponding to an initial impedance abrupt change point when the initial impedance abrupt change point is identified, and starting up the nerve stimulator obtained in advance the voltage is determined as a working voltage estimation value of the nerve stimulator, parameter configuration is executed, a state estimation value of the nerve stimulator is calculated according to a reflection impedance monitoring sequence corresponding to the nerve stimulator in the parameter configuration execution stage, and the transmitting power of the energy supply electromagnetic waves is controlled according to the state estimation value.

The utility model provides a dual-redundancy aircraft propeller wireless variable pitch system. The system comprises a driving integrated control board, a power supply distribution assembly box, a Lora communication system, a wireless data transmission radio station, a wireless power supply system, a transmitting double antenna, a receiving double antenna, a variable pitch motor and a propeller mechanical mechanism. Wherein the wireless power supply system comprises a transmitting coil group and a receiving coil group; the transmitting dual-antenna comprises an antenna I and an antenna II, and the receiving dual-antenna comprises an antenna III and an antenna IV; according to the system design provided by the utility model, an electric slip ring used in wired pitch change is replaced by a wireless pitch change mode, and wireless electric energy supply and wireless signal control of the pitch change motor are realized. And meanwhile, a dual-redundancy design of a Lora communication system and a wireless data transmission radio station is adopted to carry out wireless communication so as to control the variable-pitch motor.

To provide a wireless power supply system in which overvoltage protection can be realized at the power reception side without adopting a special circuitry configuration.SOLUTION: A power reception device 3 includes a rectifier 32 that converts received AC voltage to DC voltage and outputs the DC voltage to between a high-potential side line 41 and a low-potential side line 42, an input capacitor C1 that smooths the output of the rectifier 32, a DCDC converter 5 that receives the DC voltage smoothed by the input capacitor C1 as input voltage Vin, converts the input voltage Vin to desired output voltage Vout by controlling the on / off of at least two switching elements SW1, SW2, and outputs the output voltage to a load, and an overvoltage detection unit 51 that detects overvoltage of the input voltage Vin. When the overvoltage detection unit 51 detects overvoltage, the DCDC converter 5 executes overvoltage protection operation of forming a current path to allow protection current Ipro to flow therethrough between the high-potential side line 41 and the low-potential side line 42 by controlling the switching elements SW1, SW2 to be on.SELECTED DRAWING: Figure 1

To provide a wireless power transmission device, a wireless power receiving device, and a wireless power supply system that have simple and lightweight configurations capable of being highly effective in reducing leakage magnetic fields, even at locations far from a power transmitting coil and a power receiving coil.SOLUTION: A wireless power transmission device that transmits power contactlessly includes: a power transmitting coil that transmits power; a driving induction coil provided around the power transmitting coil; and a canceling magnetic field generating coil connected in series to at least a portion of the driving induction coil so as to surround at least a portion of the power transmitting coil, in which a leakage magnetic field canceling coil is formed by the driving induction coil and the canceling magnetic field generating coil.SELECTED DRAWING: Figure 1

Systems and methods for implementing over current protection for wireless power devices is described. The method can include receiving alternating current (AC) power from a wireless power transmitter. Rectifying the AC power into a rectified voltage. Generating an output voltage using the rectified voltage. Determining whether an output current of the output voltage can be within a range of current values. In response to output current being within the range of current values, regulating the rectified voltage to a level that minimizes a difference between the rectified voltage and the output voltage. In response to output current being outside of the range of current values, determining whether output current can be greater than or less than an upper bound of the range of current values. In response to the output current being greater than the upper bound of range of current values, shutting down the wireless power transfer system.

The utility model relates to the technical field of data acquisition, in particular to a charging device of telemetering implantation equipment and the telemetering implantation equipment. The charging device for the telemetering implantable device is used for charging the telemetering implantable device and comprises a wearable structure, a charging control box and a wireless power supply transmitting unit, the wearing structure is used for being worn and fixed at a preset position of a tested party; the charging control box and the wireless power supply transmitting unit are fixed in the wearable structure; the charging control box is connected with the wireless power supply transmitting unit and is used for controlling the wireless power supply transmitting unit to charge the telemetering implanted equipment; wherein the telemetering implantation device is a telemetering implantation device with a wireless charging function. According to the arrangement, the charging device of the telemetering implantation equipment is used for charging the telemetering implantation equipment implanted into the body of the experimental animal, so that the service time of the telemetering implantation equipment is greatly prolonged.

The invention discloses a wireless energy and analog-digital mixed signal synchronous transmission circuit and method based on a coaxial coil, and relates to the technical field of wireless power transmission. The technical problems that in the prior art, an existing transmission system only considers single digital signal transmission, the requirement for system analog and digital diverse signal mixed transmission is difficult to meet, high quantization errors are generated, and real-time performance and precision are difficult to consider at the same time are solved. According to the technical scheme provided by the invention, the wireless energy and analog-digital mixed signal synchronous transmission circuit based on the coaxial coil comprises a power channel and a communication channel, the power channel comprises a direct-current power supply, an inverter, a compensation circuit I, a power coil, a compensation circuit II and a rectifier; the communication channel comprises a signal modulation part, a signal transceiving circuit, a communication coil, a filter and a demodulation circuit; the signal modulation part comprises an analog signal modulation circuit and a digital signal modulation circuit. The device is suitable for wireless power supply and signal transmission.

The invention discloses a programmable electrical nerve stimulation system based on ultrasonic energy supply. The programmable electrical nerve stimulation system comprises an ultrasonic transmitter, a piezoelectric receiver, a rectifier, a power management module, a data demodulation circuit, a control module, an H-bridge driving circuit, a current digital-to-analog converter and an H-bridge circuit, the external ultrasonic transmitter can transmit ultrasonic waves to supply power to the system and transmit data, and the piezoelectric receiver receives ultrasonic signals and converts the ultrasonic signals into alternating current signals. The rectifier and the power management module can convert alternating current signals into direct current signals to provide power for other circuits of the system, the data demodulation circuit processes the alternating current signals to recover data information in ultrasonic waves, the control module controls the H-bridge driving circuit and the current digital-to-analog converter according to the data information, and finally electrical stimulation is achieved through the H-bridge. The system provided by the invention has the characteristics of wireless energy supply, high safety and programmable stimulation parameters, and can realize accurate control of output current parameters.

The application provides a wireless charging device and a foreign matter detection method, device, circuit and equipment thereof. The method comprises the following steps: applying a damping oscillation signal processing circuit to process a damping oscillation signal of a wireless power transmitter to be detected, so as to obtain a corresponding pulse signal; determining two target amplitudes of the damping oscillation signal and a target cycle number between the two target amplitudes according to the pulse signal; determining a current oscillation frequency and a current quality factor of the wireless power transmitter to be detected based on the two target amplitudes and the target cycle number; and determining whether there is foreign matter in the working range of the wireless power transmitter to be detected based on the current oscillation frequency, the current quality factor, a preset standard quality factor and a preset standard oscillation frequency. The application can output a pulse signal accurately reflecting the damping oscillation signal of the wireless power transmitter, so as to calculate the current quality factor and the current oscillation frequency of the wireless power transmitter based on the pulse signal, and realize more accurate foreign matter detection.

The embodiment of the invention relates to the technical field of wireless power supply, in particular to a voltage compensation method. The method comprises the steps of obtaining a target line resistance value and a target temperature coefficient, determining a calibration current which is obtained by calibrating an output current sampled by the wireless power supply system, determining a loss compensation value based on the target line resistance value and the calibration current, compensating the loss compensation value based on the target temperature coefficient, and outputting the compensated loss compensation value. Obtaining a voltage compensation value, determining a target voltage based on the voltage compensation value and a preset voltage value, and controlling the wireless power supply system based on the target voltage. According to the embodiment of the invention, the loss compensation value can be obtained according to the calibration current and the line resistance value to compensate the output voltage of the wireless power supply system, and the loss compensation value is corrected through the temperature coefficient to obtain a more accurate voltage compensation value, so that the output voltage of the system is more accurate, and the operation reliability and safety of equipment are improved.

A wireless charging power supply and pick-up system during operation of electric vehicles and industrial equipment while operating is described. The withstand voltage problem on the power supply line was solved by the capacitor provided in the inverter, and the power supply line and common line arrangement. This makes it possible to extend the wireless power supply line and the economical problem of the wireless charging system is greatly improved.In the prior art, compatibility was maintained with various wireless charging pick-up pads installed in the vehicle by using a plurality of inverters. In this system, compatibility is satisfied at a lower cost by utilizing the relay present in the inverter. The EMI of the power supply line is reduced by maximizing the magnetic field cancellation effect by using the structure of the common line and the shielding tube. In addition, it improves the limitation of the length of the power supply line section and the problem of the dead zone during wireless charging while driving.

The invention provides a magnetic drive conveying system. The magnetic drive conveying system comprises a conveying track, a rotor device, a wireless power supply mechanism and a wireless power obtaining mechanism. The conveying track comprises a stator magnet; the rotor device comprises a rotor base, a rotor magnet and a reversing mechanism, the rotor magnet and the reversing mechanism are arranged on the rotor base, the rotor magnet is magnetically coupled with the stator magnet so as to generate driving force used for driving the rotor base to move along the conveying track, and the reversing mechanism is used for driving the rotor base to change the moving direction of the rotor base on the conveying track; the wireless power supply mechanism is connected to the conveying track; the wireless electricity obtaining mechanism is connected to the rotor base and electrically connected with the reversing mechanism. When the rotor base moves on the conveying track, the wireless power obtaining mechanism is magnetically coupled with the wireless power supply mechanism, so that electric energy is obtained through the wireless power supply mechanism, and power is supplied to the reversing mechanism. Therefore, the problem of supplying power to the reversing mechanism is solved, the continuity of electric energy acquisition is ensured, and the normal operation of the reversing mechanism is prevented from being influenced by power supply interruption.

To provide a power reception device and a wireless power supply system in which capacity control can be performed more easily.SOLUTION: A power reception device includes a first capacitor that is included with a power reception coil in a resonance circuit and has a variable capacity, a second capacitor that is connected in parallel with the first capacitor and has a fixed capacity, a switching circuit that is connected in series with both ends of the first capacitor and includes a switch that can be bidirectionally turned on / off, an AGC (Automatic Gain Control) circuit that converts, as an input, an AC voltage from both ends of the second capacitor to an AC voltage of a fixed amplitude value by increasing / decreasing an amplitude rate, and a switch control circuit that controls the switch of the switching circuit on the basis of comparison between the AC voltage of the fixed amplitude value outputted from the AGC circuit and a reference voltage.SELECTED DRAWING: Figure 2

The invention provides a wireless power supply network throughput optimization method and system. The method comprises the following steps: constructing a wireless power supply communication system model with energy constraint and time delay constraint; constructing a throughput maximization problem P0; s3, on the basis of the throughput maximization problem P0, constructing a charging energy maximization sub-problem P1 under the constraints of total energy and energy collection duration, and solving the sub-problem P1 under the conditions that the total available energy of the wireless power supply base station is less and the total available energy of the wireless power supply base station is more; based on the throughput maximization problem P0, constructing a throughput maximization sub-problem P2 with wireless communication duration as a variable under the condition that an energy collection user gives an energy collection strategy, and solving the throughput maximization sub-problem P2; based on the optimal wireless energy transmission strategy and the optimal wireless communication duration strategy characteristics, the throughput maximization problem P0 is converted into a single-variable optimization problem P3, and the single-variable optimization problem P3 is solved. According to the method, the actual throughput performance of the wireless energy supply communication network is improved, and the efficient communication requirement in a complex dynamic network environment is met.

The invention discloses a quick-response dynamic wireless power supply system and method suitable for mobile equipment. The method comprises the following steps: S1, acquiring running state data of the mobile equipment in real time; s2, preprocessing the operation state data; s3, predicting a power supply position track and a power demand of the mobile device based on the improved self-attention echo state network; s4, constructing a dynamic power supply control instruction set; s5, an array type wireless energy emission control module is driven, and energy directional transmission is carried out; s6, collecting parameters of a receiving end in real time at the receiving end of the mobile equipment; s7, correcting the control instruction set through the reinforcement learning adjustment model; and S8, updating network parameters and control strategies through incremental learning. According to the method, the improved self-attention echo state network and reinforcement learning are combined, intelligent prediction and closed-loop control of dynamic wireless power supply of the mobile equipment are achieved, and the method has the advantages of being fast in response, high in stability and high in self-optimization capacity.

The present invention discloses an electrical device, comprising: a main body; a pivoting member pivotally connected to the main body; a first coil mounted on the main body; and a second coil mounted on the pivoting member; wherein at least a part of the first coil passes through the second coil to form electromagnetic coupling between the first coil and the second coil, so as to realize wireless power supply between the main body and the pivoting member.

The invention provides a dynamic wireless power supply system transmitting end power distribution network and a switching control method thereof, and belongs to the technical field of wireless power transmission. The invention aims to solve the problems that a significant current is induced in a non-working guide rail due to coupling of adjacent guide rails in a parallel LCC compensation topology of a high-power dynamic wireless power supply system and a relatively large voltage and current peak is generated in a loop when a switch is switched. The transmitting end power distribution network comprises a transmitting end, a guide rail circuit, a rectifying circuit and a load. The switching control method comprises the following steps: dividing the work of a power distribution network of a transmitting end into a first working state to a fifth working state according to the on-off states of a main switch and an auxiliary switch, setting transmitting end and receiving end partial harmonic equivalent inductors of partial harmonic of the transmitting end and the receiving end, and adjusting the partial harmonic degree of the transmitting end according to the coupling degree between guide rails, and according to the input impedance of the transmitting end and the equivalent resonance impedance reflected to the transmitting end by the receiving end, adjusting the partial resonance degree of the receiving end, and repeating the working double tires to realize inversion soft switching.