A high-speed dynamic wireless power supply system model simulation and measurement platform

Abstract

The application provides a high-speed dynamic wireless power supply system model simulation and actual measurement platform, which comprises a high-speed dynamic wireless power supply device, an electrical monitoring system, a communication system and a high-speed dynamic wireless power supply device simulation system, wherein: the high-speed dynamic wireless power supply device comprises a vehicle motion simulation module and a dynamic wireless power supply module, the vehicle motion simulation module is configured with an energy receiving coil and an energy receiving circuit, and the dynamic wireless power supply module is configured with a segmented energy transmitting coil and an energy transmitting circuit; the electrical monitoring system comprises various current measuring modules and voltage measuring modules, the communication system is used for collecting and storing monitoring data; and the high-speed dynamic wireless power supply device simulation system comprises a wireless power supply system simulation calculation module, a data analysis module and a simulation data storage module. The effect is that model simulation data and experimental actual measurement data can be recorded at the same time, a simulation and experimental actual measurement database is formed, and parameter identification and model correction are simultaneously realized.

Description

TECHNICAL FIELD

[0001] The present application relates to wireless charging technology, in particular to a high-speed dynamic wireless power supply system model simulation and measurement platform. BACKGROUND

[0002] The wireless power supply system uses the near-field coupling principle of high-frequency electromagnetic field, uses high-frequency magnetic field as transmission medium, and realizes wireless transmission of electric energy through magnetic field coupling between the transmitting coil and the receiving coil. The wireless power supply system mainly consists of two parts, one part is the transmitting end connected to the power supply side, and the other part is the receiving end located at the load side. Energy is transmitted from the transmitting end to the receiving end by electromagnetic induction. The existing wireless power supply system mainly consists of a DC power supply, an inverter, a transmitting coil, a transmitting compensation capacitor of the transmitting end, and a receiving coil, a receiving compensation capacitor, a rectifier and a load of the receiving end.

[0003] The wireless power supply technology can be used for dynamic power supply of tramcars, electric vehicles and other transportation tools. Through the laying of segmented transmitting coils on the ground, dynamic and continuous power supply can be realized during the movement of the vehicle. It can well overcome the problems of spark in contact power supply mode and range anxiety in energy storage power supply mode, and has the advantages of convenience, beauty, safety and flexibility.

[0004] However, during the high-speed dynamic movement of the vehicle, the parameters between the transmitting coil and the receiving coil change quickly, and there are problems such as mismatching between the circuit transient response time and the time of the vehicle passing through the segmented transmitting coil. The current dynamic wireless power supply system model is still difficult to accurately simulate and simulate the high-speed dynamic wireless power supply system. In addition, it is still difficult to obtain the dynamic wireless power supply system measurement data under high speed and directly use it to correct the system simulation model. SUMMARY

[0005] Based on the above problems, the purpose of the present application is to provide a high-speed dynamic wireless power supply system model simulation and measurement platform, which solves the problems of inaccurate high-speed dynamic wireless power supply system model, difficult to obtain measurement data, and difficult to match simulation data and measurement data.

[0006] In order to achieve the purpose, the specific technical solutions adopted by the present application are as follows:

[0007] A high-speed dynamic wireless power supply system model simulation and measurement platform, the key of which is: including a high-speed dynamic wireless power supply device, an electrical monitoring system, a communication system and a high-speed dynamic wireless power supply device simulation system, wherein:

[0008] The high-speed dynamic wireless power supply device comprises a vehicle motion simulation module and a dynamic wireless power supply module, the vehicle motion simulation module is provided with an energy receiving coil and an energy receiving circuit, and the dynamic wireless power supply module is provided with a segmented energy transmitting coil and an energy transmitting circuit arranged corresponding to each segment of the energy transmitting coil;

[0009] The electrical monitoring system comprises a primary side high-frequency voltage measuring module and a primary side high-frequency current measuring module arranged corresponding to each segment of the energy transmitting coil, a primary side direct current voltage measuring module and a primary side direct current current measuring module arranged corresponding to each energy transmitting circuit, a secondary side high-frequency voltage measuring module and a secondary side high-frequency current measuring module arranged corresponding to the energy receiving coil, and a secondary side direct current voltage measuring module and a secondary side direct current current measuring module arranged corresponding to the energy receiving circuit;

[0010] The communication system comprises a wired communication module arranged corresponding to each segment of the energy transmitting coil, a wireless communication module arranged corresponding to the energy receiving coil, and an experimental data storage module for collecting and storing the monitoring data of the electrical monitoring system;

[0011] The high-speed dynamic wireless power supply device simulation system comprises a wireless power supply system simulation calculation module, a data analysis module and a simulation data storage module, the wireless power supply system simulation calculation module is written with the same mechanical motion parameters and electrical parameters as the high-speed dynamic wireless power supply device, for simulating the running state of the high-speed dynamic wireless power supply device, and storing the simulation data in the simulation data storage module, and the data analysis module is used for receiving the relevant waveform data in the experimental data storage module, and realizing system parameter identification.

[0012] Optionally, the energy receiving circuit comprises a secondary side compensation capacitor, a rectifier and a load, the secondary side high-frequency voltage measuring module is connected in parallel at the input end of the rectifier, and the secondary side high-frequency current measuring module is connected in series at the alternating current input end of the rectifier; the secondary side direct current voltage measuring module is connected in parallel at the output end of the rectifier, and the secondary side direct current current measuring module is connected in series at the direct current output end of the rectifier.

[0013] Optionally, the energy transmitting circuit comprises an inverter power supply connected with a direct current power bus and a primary side compensation circuit connected with each segment of the energy transmitting coil, the primary side direct current voltage measuring module is connected in parallel between the input ends of the inverter power supply, and the primary side direct current current measuring module is connected in series at the direct current input end of the inverter power supply; the primary side high-frequency voltage measuring module is connected in parallel between the output ends of the inverter power supply, and the primary side high-frequency current measuring module is connected in series at the high-frequency output end of the inverter power supply.

[0014] Optionally, the motion trajectory simulated by the vehicle motion simulation module comprises linear motion and circular motion.

[0015] Optionally, the experimental data storage module and the data analysis module are connected by optical fiber.

[0016] Optionally, the parameters identified by the data analysis module include energy transmitting coil parameters, energy receiving coil parameters, and load parameters, and the identified parameters are updated in the high-speed dynamic wireless power supply device simulation system.

[0017] Optionally, the data analysis module is used to receive relevant waveform data from the simulation data storage module and compare it with relevant data from the experimental data storage module to perform error analysis, system transmission power analysis, system efficiency analysis, and system dynamic response characteristic analysis.

[0018] Optionally, both the experimental data storage module and the simulation data storage module store the corresponding experimental data one by one according to the working conditions.

[0019] The effects of this invention are:

[0020] (1) This invention can provide a simulation and experimental integrated platform for high-speed dynamic wireless power supply systems, which can simultaneously record model simulation data and experimental experimental data to form a simulation and experimental experimental database.

[0021] (2) This invention can be used to identify parameters such as coil mutual inductance, self-inductance, and resonant capacitance in experimental subsystems, which is beneficial for correcting system simulation model parameters.

[0022] (3) The simulation and data measurement methods used in this invention can be automated, reducing the time required for related experiments. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below.

[0024] Figure 1 This is a system architecture diagram in a specific embodiment of the present invention. Detailed Implementation

[0025] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0027] likeFigure 1 As shown, this embodiment provides a high-speed dynamic wireless power supply system model simulation and test platform, including a high-speed dynamic wireless power supply device, an electrical monitoring system, a communication system, and a high-speed dynamic wireless power supply device simulation system, wherein:

[0028] The high-speed dynamic wireless power supply device includes a vehicle motion simulation module and a dynamic wireless power supply module. The vehicle motion simulation module is equipped with an energy receiving coil and an energy receiving circuit. The dynamic wireless power supply module is equipped with a segmented energy transmitting coil and an energy transmitting circuit corresponding to each segment of the energy transmitting coil.

[0029] The electrical monitoring system includes a primary-side high-frequency voltage measurement module and a primary-side high-frequency current measurement module for each energy transmitting coil, a primary-side DC voltage measurement module and a primary-side DC current measurement module for each energy transmitting circuit, a secondary-side high-frequency voltage measurement module and a secondary-side high-frequency current measurement module for each energy receiving coil, and a secondary-side DC voltage measurement module and a secondary-side DC current measurement module for each energy receiving circuit.

[0030] The communication system includes a wired communication module corresponding to each energy transmitting coil, a wireless communication module corresponding to each energy receiving coil, and an experimental data storage module, used to collect and store monitoring data of the electrical monitoring system.

[0031] The high-speed dynamic wireless power supply device simulation system includes a wireless power supply system simulation calculation module, a data analysis module, and a simulation data storage module. The wireless power supply system simulation calculation module is programmed with the same mechanical motion parameters and electrical parameters as the high-speed dynamic wireless power supply device, and is used to simulate the operating state of the high-speed dynamic wireless power supply device and store the simulation data in the simulation data storage module. The data analysis module is used to receive relevant waveform data from the simulation data storage module and to identify system parameters.

[0032] In a specific implementation, the energy receiving circuit includes a secondary-side compensation capacitor, a rectifier, and a load. The secondary-side high-frequency voltage measurement module is connected in parallel to the input terminal of the rectifier, and the secondary-side high-frequency current measurement module is connected in series to the AC input terminal of the rectifier. The secondary-side DC voltage measurement module is connected in parallel to the output terminal of the rectifier, and the secondary-side DC current measurement module is connected in series to the DC output terminal of the rectifier.

[0033] from Figure 1As can be seen, RL is the energy receiving coil, RC represents the secondary compensation capacitor, RR represents the rectifier, Ro is the load, RVA is the secondary high-frequency voltage measurement module, RCA is the secondary high-frequency current measurement module, RVD is the secondary DC voltage measurement module, RCD is the secondary DC current measurement module, RT is the wireless communication module, and the motion trajectory simulated by the vehicle motion simulation module includes different forms such as linear motion and circular motion. During the movement of the vehicle motion simulation module, the segmented energy transmitting coil transfers energy to the energy receiving coil RL and its subsequent load Ro.

[0034] In addition, the energy emission circuit includes an inverter power supply connected to the DC power bus and a primary-side compensation circuit connected to each energy emission coil. The primary-side DC voltage measurement module is connected in parallel between the input terminals of the inverter power supply, and the primary-side DC current measurement module is connected in series between the DC input terminals of the inverter power supply. The primary-side high-frequency voltage measurement module is connected in parallel between the output terminals of the inverter power supply, and the primary-side high-frequency current measurement module is connected in series between the high-frequency output terminals of the inverter power supply.

[0035] from Figure 1 As can be seen, TL1, TL2, and TL3 represent three energy transmitting coils; TC1, TC2, and TC3 represent the primary-side compensation circuit; TS1, TS2, and TS3 represent the inverter power supply; TCD1, TCD2, and TCD3 are the primary-side DC current measurement modules; TVD1, TVD2, and TVD3 are the primary-side DC voltage measurement modules; TVA1, TVA2, and TVA3 are the primary-side high-frequency voltage measurement modules; TCA1, TCA2, and TCA3 are the primary-side high-frequency current measurement modules; and TT1, TT2, and TT3 represent the primary-side wired communication modules. These measurement modules of the electrical monitoring system operate within the high-speed dynamic wireless power supply device. During operation, the corresponding voltage and current quantities are measured in real time. In the electrical monitoring system, the measurement modules connected to the transmitting circuit of the high-speed dynamic wireless power supply module are connected to the wired communication modules TT1, TT2, and TT3 of the transmitting end, respectively, and transmit the detected voltage and current quantities to the experimental data storage module in the high-speed communication system. The measurement modules connected to the receiving circuit of the high-speed dynamic wireless power supply module are connected to the receiving wireless communication module RT, and transmit the detected voltage and current quantities to the experimental data storage module in the high-speed communication system. The experimental data storage module in the high-speed communication system is connected to the data analysis module in the high-speed dynamic wireless power supply simulation system via a wired connection (not limited to fiber optics). Both the experimental data storage module and the simulation data storage module store the corresponding experimental data item by item according to the operating conditions.

[0036] In practical implementation, the data analysis module identifies parameters including energy transmitting coil parameters, energy receiving coil parameters, and load parameters, and updates the identified parameters in the high-speed dynamic wireless power supply device simulation system. The data analysis module can also receive relevant waveform data from the simulation data storage module and compare it with relevant data from the experimental data storage module to perform error analysis, system transmission power analysis, system efficiency analysis, and system dynamic response characteristic analysis.

[0037] Based on the above description of the system architecture, the workflow of the high-speed dynamic wireless power supply system model simulation and test platform provided by this invention is as follows:

[0038] 1. A high-speed dynamic wireless power supply device simulates the dynamic energy transfer process of a wireless power supply module under high-speed vehicle movement;

[0039] 2. The electrical testing system measures the DC voltage, DC current, AC voltage, and AC current of each circuit component of the high-speed dynamic wireless power supply device in real time;

[0040] 3. In the electrical monitoring system, multiple measurement modules transmit measurements to the experimental data storage module via a high-speed communication system;

[0041] 4. The experimental data storage module in the high-speed communication system is connected to the data analysis module in the high-speed dynamic wireless power supply device simulation system for data transmission;

[0042] 5. The simulation calculation module in the high-speed dynamic wireless power supply device simulation system realizes the simulation of the operating status of the high-speed dynamic wireless power supply device and stores the simulation data in the simulation data storage module;

[0043] 6. The data analysis module identifies parameters such as the transmitter coil and receiver coil parameters and load in the wireless power supply module, and performs error analysis, system transmission power analysis, system efficiency analysis, and system dynamic response characteristic analysis by comparing simulation and experimental data.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and such transformations should be covered within the scope of the claims and specification of the present invention.

Claims

1. A high-speed dynamic wireless power supply system model simulation and test platform, characterized in that: This includes a high-speed dynamic wireless power supply device, an electrical monitoring system, a communication system, and a high-speed dynamic wireless power supply device simulation system, among which: The high-speed dynamic wireless power supply device includes a vehicle motion simulation module and a dynamic wireless power supply module. The vehicle motion simulation module is equipped with an energy receiving coil and an energy receiving circuit. The dynamic wireless power supply module is equipped with a segmented energy transmitting coil and an energy transmitting circuit corresponding to each segment of the energy transmitting coil. The electrical monitoring system includes a primary-side high-frequency voltage measurement module and a primary-side high-frequency current measurement module for each energy transmitting coil, a primary-side DC voltage measurement module and a primary-side DC current measurement module for each energy transmitting circuit, a secondary-side high-frequency voltage measurement module and a secondary-side high-frequency current measurement module for each energy receiving coil, and a secondary-side DC voltage measurement module and a secondary-side DC current measurement module for each energy receiving circuit. The communication system includes a wired communication module corresponding to each energy transmitting coil, a wireless communication module corresponding to each energy receiving coil, and an experimental data storage module, used to collect and store monitoring data of the electrical monitoring system. The high-speed dynamic wireless power supply device simulation system includes a wireless power supply system simulation calculation module, a data analysis module, and a simulation data storage module. The wireless power supply system simulation calculation module is programmed with the same mechanical motion parameters and electrical parameters as the high-speed dynamic wireless power supply device, and is used to simulate the operating state of the high-speed dynamic wireless power supply device and store the simulation data in the simulation data storage module. The data analysis module is used to receive relevant waveform data from the simulation data storage module to identify system parameters. The data analysis module identifies parameters including energy transmitting coil parameters, energy receiving coil parameters, and load parameters, and updates the identified parameters in the high-speed dynamic wireless power supply device simulation system.

2. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 1, characterized in that: The energy receiving circuit includes a secondary-side compensation capacitor, a rectifier, and a load. The secondary-side high-frequency voltage measurement module is connected in parallel to the input terminal of the rectifier, and the secondary-side high-frequency current measurement module is connected in series to the AC input terminal of the rectifier. The secondary-side DC voltage measurement module is connected in parallel to the output terminal of the rectifier, and the secondary-side DC current measurement module is connected in series to the DC output terminal of the rectifier.

3. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 1 or 2, characterized in that: The energy emission circuit includes an inverter power supply connected to the DC power bus and a primary-side compensation circuit connected to each energy emission coil. The primary-side DC voltage measurement module is connected in parallel between the input terminals of the inverter power supply, and the primary-side DC current measurement module is connected in series between the DC input terminals of the inverter power supply. The primary-side high-frequency voltage measurement module is connected in parallel between the output terminals of the inverter power supply, and the primary-side high-frequency current measurement module is connected in series at the high-frequency output terminal of the inverter power supply.

4. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 3, characterized in that: The vehicle motion simulation module simulates motion trajectories including linear motion and circular motion.

5. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 1, characterized in that: The experimental data storage module and the data analysis module are connected by optical fiber.

6. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 1, characterized in that: The data analysis module is used to receive relevant waveform data from the simulation data storage module and compare it with relevant data from the experimental data storage module to perform error analysis, system transmission power analysis, system efficiency analysis, and system dynamic response characteristic analysis.

7. The high-speed dynamic wireless power supply system model simulation and test platform according to claim 1, characterized in that: Both the experimental data storage module and the simulation data storage module store the corresponding experimental data one by one according to the working conditions.

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