CN111674272A - Wireless charging system and method for new energy rail locomotives - Google Patents

Abstract

The invention relates to the technical field of wireless charging, in particular to a wireless charging system and a wireless charging method for a new energy rail locomotive vehicle, wherein the system comprises a power supply transmitting device and a transmitting power conversion module, wherein the transmitting power conversion module is electrically connected to a power supply, a power transmitting unit and a transmitting controller respectively; the vehicle-mounted receiving device comprises a receiving power conversion module, wherein the receiving power conversion module is electrically connected to a power receiving unit and a receiving controller respectively, and the power transmitting unit and the power receiving unit are close to each other and are arranged oppositely to form magnetic coupling; and the energy storage device is arranged on the rail locomotive vehicle and is electrically connected with the received power conversion module. The system can provide efficient, automatic and safe charging for rail locomotive vehicles, reduces the manual operation and maintenance cost, avoids potential safety hazards caused by wired connection charging, and also avoids the problems of equipment service life reduction, reliability reduction and the like caused by damage to equipment caused by wired connection charging operation.

Description

Wireless charging system and method for new energy rail locomotives

technical field

The invention relates to the technical field of wireless charging, in particular to the field of locomotive and rolling stock rail transportation, and in particular to a wireless charging system and method for new energy rail rolling stock.

Background technique

Rail locomotives are widely used in production and life due to their advantages of strong transportation capacity, and their long-term development has been widely recognized by the society. Rail locomotives were powered by steam in the early days, and later developed to use diesel locomotives and electric locomotives. They use diesel generators or real-time electricity from catenary through pantographs as driving energy.

At present, there are already rail locomotives or pure power storage locomotives that use fuel-electric hybrid (that is, fuel generator set + power storage device) or electric-electric hybrid (that is, to obtain electric energy from catenary in real time through pantograph + power storage device). The rail locomotive capable of providing power is put into use, and the driving force is provided in the form of its own electric energy, which can reduce the investment in the erection of the catenary. However, domestic and foreign new energy rail locomotives and vehicles such as gasoline-electric hybrid locomotives or EMUs, electric hybrid locomotives or EMUs, pure electric locomotives or engineering rail equipment and other rail locomotives have not passed the implementation of wireless charging systems. For charging, the electric connector is used for wired connection charging, which is inconvenient for manual operation, and the reliability is poor, and the safety cannot be fully guaranteed.

Therefore, there is still room for improvement in the existing charging system for rail vehicles, and it is necessary to improve and optimize it to obtain a more reasonable technical solution and solve the deficiencies in the existing technology.

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art mentioned in the above content, the present invention provides a wireless charging system and method for new energy rail locomotives, aiming to provide a more convenient charging method for rail locomotives through the wireless charging system and ensure charging. process safety.

In order to achieve the above purpose, the present invention improves and optimizes the charging system, and the specific technical solutions adopted are:

New energy rail rolling stock wireless charging system, including:

a power supply transmitting device, including a transmitting power converting module, the transmitting power converting module is electrically connected to the power supply, the power transmitting unit and the transmitting controller respectively;

The vehicle-mounted receiving device includes a receiving power conversion module, the receiving power conversion module is electrically connected to the power receiving unit and the receiving controller, respectively, and the power transmitting unit and the power receiving unit are close to each other and are disposed opposite to each other to form a magnetic coupling;

The energy storage device is arranged on the rail locomotive and is electrically connected with the receiving power conversion module.

The wireless charging system disclosed above uses a non-contact method to charge the rail locomotive, and transfers the electrical energy at the power supply end to the energy storage device through the magnetic coupling induction between the power supply transmitting device and the vehicle-mounted receiving device.

Further, during the working process of the above wireless charging device, the power supply terminal and the vehicle terminal maintain real-time communication, so as to facilitate the charging control of the power supply terminal and the vehicle terminal, and make the charging process more automatic and intelligent. The following feasible solutions are listed: the wireless charging device further includes a communication module that promotes information exchange between the power supply transmitting device and the vehicle receiving device, and the communication module includes a power supply end communication unit located at the power supply transmitting device and a vehicle receiving device. The vehicle-mounted communication unit is electrically connected to the transmitting controller, and the vehicle-mounted communication unit is electrically connected to the receiving controller. As one of many possible options, the significance of this setting is that the on-board terminal can send the charging status information to the power supply terminal in real time through the on-board terminal communication unit, and can also send the adjustment command of the receiving controller to the on-board terminal communication unit through the on-board terminal communication unit. The power supply end, the power supply end adjusts and cooperates in time.

Further, the charging environment of rail locomotives and vehicles is a high-voltage environment, so it is particularly necessary to reduce a large number of connection lines. Therefore, the power supply end communication unit and the vehicle end communication unit are optimized, and the following specific feasible technical solutions are listed: the power supply end communication unit Both the unit and the vehicle-mounted communication unit are wireless communication elements.

Still further, the power supply end communication unit and the vehicle end communication unit may adopt but not limited to wireless connection methods including Bluetooth, WiFi, ZigBee, and the like.

Further, while the rail locomotives are being charged, the capacity of the energy storage device changes all the time, and needs to be detected and adjusted in time. To optimize the charging system, the following specific and feasible solutions are listed: An energy storage management device for energy management, the energy storage management device is arranged at the vehicle receiving device, and the energy storage management device is electrically connected with the energy storage device. The energy storage management device always detects the working state parameters of the energy storage device, such as the lowest voltage of the energy storage unit in the energy storage device, the highest voltage of the single cell, the total voltage, the lowest temperature, the highest temperature, current, storage capacity, health and other data .

Further, in order to facilitate the overall control of the rail rolling stock, the charging system further includes a rolling stock microcomputer control device for controlling the running of the rail rolling stock, and the rolling stock microcomputer control device is communicatively connected to the receiving controller. The function of the locomotive and rolling stock computer control device is to judge whether the wireless charging site is safe, whether it can move forward, and whether to control the rail rolling stock to automatically reach the position limited by the wireless charging according to the status of the charging site and the positioning of the ground-guided rail rolling stock. Alarm, if it is safe, it will automatically control the rail locomotive vehicle to reach the wireless charging position, and send charging instructions to the receiving controller through the microcomputer communication network.

The above technical solution discloses the composition structure of the wireless charging system, and the present invention also provides a wireless charging method, which realizes automatic charging by controlling the rail locomotive vehicle to reach a designated position. Now the wireless charging scheme will be described.

The charging solution disclosed in the present invention is that the wireless charging method for a new energy rail locomotive vehicle adopts the charging system disclosed above, including:

Connect the power supply, convert the electric energy through the transmission power conversion module and transmit it to the power transmission unit, and transmit the energy to the vehicle terminal in the form of an alternating magnetic field;

The power supply end communication unit receives the feedback information from the vehicle end in real time, and transmits the feedback information to the transmitter controller, which adjusts the working parameters of the transmission power conversion module in time; when the power supply end communication unit receives the feedback information that the vehicle end completes the charging , the transmit controller stops the work of the transmit power conversion module.

The charging method disclosed here is described with the power supply terminal as the main body. Through the conversion processing and energy transfer of the power supply terminal, the conversion and transmission of electric energy can be realized, and the charging of the electrical equipment on the vehicle side and the energy storage of the energy storage equipment can be realized.

Further, the electric energy is converted and transmitted to the power transmitting unit through the transmission power conversion module. In the specific execution process, the transmission power conversion module includes a rectification and voltage adjustment circuit, an inverter circuit and a transmission network compensation circuit. The circuit converts the power frequency alternating current into direct current by the rectification and voltage adjustment circuit, and converts the direct current into high frequency alternating current through the inverter circuit, and finally converts the high frequency alternating current into high frequency alternating magnetic field after compensation by the transmitting network compensation circuit.

The content of the above charging scheme is the description of the power supply side, and the present invention also describes the on-board terminal side of the charging scheme. The wireless charging method for the new energy rail locomotive vehicle adopts the charging system described above, including:

The rail locomotive moves to the charging station, so that the power receiving unit and the power supply terminal are magnetically coupled;

The power receiving unit generates current through the alternating magnetic field, and transmits the current to the receiving power conversion module, and the receiving power conversion module compensates and rectifies the current and then transmits it to the energy storage device;

Real-time monitoring of the energy storage state of the energy storage device, and feedback the monitoring results to the power supply end, and adjust the parameters of the power supply end in time to keep the working state of the energy storage device normal, and stop the charging process of the energy storage device when the charging requirements are met.

The charging scheme disclosed here describes and describes the specific charging operation of the on-board terminal. When charging is required, after the rail locomotive vehicle travels to the designated charging position, magnetic coupling is performed in the alternating magnetic field provided by the power supply terminal, that is, A corresponding alternating current can be generated to achieve charging.

Further, the energy storage state parameter of the energy storage device is monitored in real time, and the monitoring results are fed back to the power supply transmitting device. During the specific operation, the energy storage management device detects the voltage, current, and voltage of the energy storage device. Temperature and capacity parameter information, transmit the detection information to the vehicle-mounted communication unit, and the vehicle-mounted communication unit sends the detection information to the power supply terminal.

Still further, the received power conversion module compensates and rectifies the current and sends it to the energy storage device. Specifically, the current generated by the power receiving unit after compensation is high-frequency alternating current, and the receiving power conversion module rectifies the high-frequency alternating current. It is then converted into direct current, and the direct current charges the energy storage device.

Compared with the prior art, the present invention has the following beneficial effects:

The invention can provide efficient, automatic and safe charging for rail locomotives, reduce manual operation and maintenance costs, avoid potential safety hazards caused by wired connection charging, and avoid damage to equipment caused by wired connection charging operations, resulting in equipment use. Reduced lifespan and reduced reliability.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be It is regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

Figure 1 is a schematic diagram of the composition principle of the power supply terminal located under the rail locomotive in the wireless charging system;

Figure 2 is a schematic diagram of the composition principle of the power supply terminal located on the left side of the rail locomotive in the wireless charging system;

Figure 3 is a schematic diagram of the composition principle of the power supply terminal located on the right side of the rail locomotive in the wireless charging system;

Figure 4 is a schematic diagram of the composition of the wireless charging system where the power supply terminal is located at the front end of the rail locomotive;

Figure 5 is a schematic diagram of the composition of the wireless charging system where the power supply terminal is located at the rear end of the rail locomotive;

FIG. 6 illustrates the wireless charging method at the power supply end;

FIG. 7 illustrates a wireless charging method for an in-vehicle terminal.

In the above drawings, the meanings of the marks are: 1. Power supply; 2. Transmitting power conversion module; 3. Transmitting controller; 4. Power supply end communication unit; 5. Power transmitting unit; 6. Power receiving unit; 7. Receiving Power conversion module; 8. Receiving controller; 9. On-board communication unit; 10. Energy storage device; 11. Locomotive and vehicle microcomputer control device; 12. Energy storage management device.

Detailed ways

The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

It should be noted here that the descriptions of these embodiments are used to help the understanding of the present invention, but do not constitute a limitation of the present invention. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the present invention. The present invention, however, may be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.

Example 1

As shown in FIG. 1 , this embodiment is applied to the wireless charging project of rail locomotives, such as hybrid electric locomotives or EMUs, electric hybrid locomotives or EMUs, pure electric locomotives or engineering rail equipment, etc. The ground power source 1 is charged, wherein the on-board receiving device and the energy storage device 10 are arranged on the rail locomotive, as the matching structure of the on-board end to cooperate with the power supply end.

The wireless charging system for new energy rail locomotives disclosed in this embodiment includes:

a power supply transmitting device, including a transmission power conversion module 2, the transmission power conversion module 2 is electrically connected to the power supply 1, the power transmission unit 5 and the transmission controller 3 respectively;

The vehicle-mounted receiving device includes a receiving power conversion module 7, the received power conversion module 7 is electrically connected to the power receiving unit 6 and the receiving controller 8, respectively, and the power transmitting unit 5 and the power receiving unit 6 are close to each other and are disposed opposite to each other. magnetic coupling;

The energy storage device 10 is arranged on the rail vehicle and is electrically connected to the receiving power conversion module 7 .

The wireless charging system disclosed above uses a contactless method to charge the rail locomotive and vehicle, and transfers the electrical energy at the power supply end to the energy storage device 10 through magnetic coupling induction between the power supply transmitting device and the vehicle receiving device.

The power conversion module at least includes a power converter, the function of which is to convert and adjust the current from the power source 1 so that the current can better meet the charging requirements. The transmitting power conversion module 2 of the power supply transmitting device adjusts the charging current and voltage of the power supply 1 to an appropriate level according to the requirements of the on-board energy storage device 10, and forwards it to the on-board end through the power transmitting unit 5; the receiving power conversion module on the on-board end 7. Convert the alternating current received by the power receiving unit 6 and generated by the magnetic coupling, adjust the current and voltage parameters required for charging the energy storage device 10 , and output to the energy storage device 10 .

During the working process of the above wireless charging device, the power supply terminal and the vehicle terminal maintain real-time communication, so as to facilitate the charging control of the power supply terminal and the vehicle terminal, and make the charging process more automatic and intelligent. For this, the wireless charging device is optimized, as follows Feasible solution: the wireless charging device also includes a communication module that promotes the information exchange between the power supply transmitting device and the vehicle receiving device, and the communication module includes a power supply terminal communication unit 4 located at the power supply transmitting device and a vehicle mounted at the vehicle receiving device. The terminal communication unit 9 , the power supply terminal communication unit 4 is electrically connected to the transmitting controller 3 , and the vehicle terminal communication unit 9 is electrically connected to the receiving controller 8 . As one of many possible options, the significance of this setting is that the on-board terminal can send the charging status information to the power supply terminal through the on-board terminal communication unit 9 in real time, and can also receive the adjustment command of the controller 8 through the on-board terminal communication unit. 9 is sent to the power supply end, and the power supply end adjusts and cooperates in time.

In this embodiment, the power supply transmitting device and the vehicle-mounted receiving device can be correspondingly arranged in different parts of the rail locomotive. For example, as shown in Fig. 2 to Fig. 5, a power supply transmitting device can be arranged at the lower part of the body of the rail locomotive vehicle, and the power receiving unit 6 of the on-board receiving device and the power transmitting unit 5 of the power supply transmitting device are arranged at the lower part of the vehicle body; The power supply transmitting device is arranged on the left or right side of the body of the rail locomotive vehicle, and the power receiving unit 6 of the on-board receiving device and the power transmitting unit 5 of the power supply transmitting device are arranged on the left or right side of the body; The front or rear end of the vehicle body is provided with a power supply transmitting device, and the power receiving unit 6 of the vehicle receiving device and the power transmitting unit 5 of the power supply transmitting device are arranged at the front or rear end of the vehicle body.

When conditions permit, multiple groups of power transmitting units 5 and power receiving units 6 can also be set up, for example, power transmitting units 5 and power receiving units 6 are set on the left and right sides of the rail locomotive at the same time, while the rear of the locomotive The power transmitting unit 5 and the power receiving unit 6 are set at the end and the lower part, and the power transmitting unit 5 and the power receiving unit 6 are set at the front end and the lower part of the locomotive at the same time. 5 and the power receiving unit 6. The advantage of this setting is that it can improve the efficiency of charging.

The power transmitting unit 5 and the power receiving unit 6 can be set as ferromagnetic coils for inducting alternating magnetic fields; while the transmitting controller 3 and the receiving controller 8 can use PLC (Programmable Logic Controller, programmable logic controller) controller).

The charging environment of rail rolling stock is a high-voltage environment, so it is particularly necessary to reduce a large number of connection lines. Therefore, the power supply end communication unit 4 and the vehicle end communication unit 9 are optimized, and the following specific feasible technical solutions are listed: the power supply end communication unit 4 and the vehicle-mounted communication unit 9 are both wireless communication elements.

In this embodiment, the power supply end communication unit 4 and the vehicle end communication unit 9 may adopt but not limited to wireless connection methods including Bluetooth, WiFi, ZigBee and the like. In specific applications, any one of the wireless communication methods may be used.

While the rail vehicle is being charged, the capacity and other states of the energy storage device 10 change all the time, which needs to be detected and adjusted in a timely manner. To optimize the charging system, the following specific feasible solutions are listed: it also includes energy management. The energy storage management device 12 , the energy storage management device 12 is arranged at the vehicle receiving device, and the energy storage management device 12 is electrically connected to the energy storage device 10 . The energy storage management device 12 constantly detects the working state parameters of the energy storage device 10, such as the lowest voltage of the energy storage unit in the energy storage device 10, the highest voltage of the single cell, the total voltage, the lowest temperature, the highest temperature, the current, the storage capacity, the health data, etc.

Preferably, in this embodiment, PLC is used as the control core of the energy storage management device 12 . In this embodiment, the energy storage management device 12 is composed of a slave control module and a master control module. The slave control module is responsible for detecting the working state parameters of the energy storage device 10, such as the lowest voltage of the energy storage unit, the highest voltage of the single cell, and the total voltage , minimum temperature, maximum temperature, current and other parameters are transmitted to the main control module through the communication network, and the main control module judges whether the state of the energy storage device 10 is normal according to the working state parameters of the energy storage device 10 The maximum voltage, total voltage, and current parameters are calculated to evaluate the current storage capacity, the maximum voltage difference between the energy storage units in the energy storage system, and then combined with the minimum temperature and maximum temperature of the energy storage device to determine the current maximum allowable charge/discharge current of the energy storage system and the maximum temperature difference between the energy storage units in the energy storage system, and transmit these data to the receiving controller 8 through the communication network.

In order to facilitate the overall control of the rail vehicle, the charging system further includes a vehicle microcomputer control device 11 for controlling the operation of the rail vehicle. The function of the locomotive and rolling stock microcomputer control device 11 is to judge whether the wireless charging site is safe, whether it can move forward, and whether to control the rail rolling stock to automatically reach the position limited by the wireless charging according to the information such as the status of the charging site and the positioning of the rail rolling stock on the ground. Then alarm, if it is safe, the rail locomotive will be automatically controlled to reach the wireless charging position, and the charging command will be sent to the receiving controller 8 through the microcomputer communication network.

Preferably, in this embodiment, a trip computer is used as the microcomputer control device.

The locomotive and vehicle microcomputer control device 11 cooperates with the launch controller 3 to realize the guidance control of the vehicle.

Among them, ground radar, ground infrared sensor, ground position sensor and control system are installed on the ground. The ground radar is responsible for the detection of foreign objects in the ground charging area, and transmits the detection data to the launch controller 3, the control system where the launch controller 3 is located. It can judge whether there are foreign objects in the ground charging area according to the detection data of the ground radar; the ground infrared sensor is responsible for the biological detection of the ground charging area, and transmits the detection data to the launch controller 3, and the control system where the launch controller 3 is located is based on the ground infrared sensor. The detection data of the sensor determines whether there is any living thing in the ground charging area.

The transmitter controller 3 transmits the state data of the ground charging area to the power supply end communication unit 4 through the microcomputer communication network, and the power supply end communication unit 4 transmits it to the vehicle end communication unit 9 through the wireless communication network, and the vehicle end communication unit 9 transmits the charging place state information. It is transmitted to the receiving controller 8 through the microcomputer communication network, and the receiving controller 8 transmits the status information of the charging site to the locomotive and rolling stock microcomputer control device 11 through the microcomputer communication network, and the rolling stock microcomputer control device judges whether the wireless charging site is safe according to the status information of the charging site , can move forward.

For the offset detection and guidance alignment during the running process of the rolling stock, the ground position sensor and the control system are responsible for detecting the position information of the rolling stock. The arrangement of the ground position sensor includes four sensors, and the four sensors detect the current running of the rolling stock respectively. The distance between the position and the parking position. Four sensors are arranged according to the distance in the traveling direction of the rail locomotive vehicle, and transmit the vehicle position signal to the control system where the launch controller 3 is located. The launch controller 3 transmits the vehicle position signal through the microcomputer communication network. To the power supply end communication unit 4, the power supply end communication unit 4 transmits the vehicle position information to the vehicle end communication unit 9 through wireless communication, and the vehicle end communication unit 9 transmits the vehicle position information to the receiving controller 8 through the microcomputer communication network, and the receiving controller 8. The vehicle position information is transmitted to the rolling stock microcomputer control device 11 through the microcomputer communication network, and the rolling stock microcomputer control device 11 automatically controls the rail rolling stock to travel and reach the charging position according to the position signal of the rail rolling stock.

Example 2

As shown in FIG. 6 , Embodiment 1 discloses the composition of the wireless charging system. This embodiment provides a wireless charging method, which realizes automatic charging by controlling the rail vehicle to reach a designated position. Now the wireless charging scheme will be described.

The charging solution disclosed in this embodiment is that the wireless charging method for a new energy rail locomotive vehicle adopts the charging system disclosed above, including:

Connect the power supply 1, convert the electric energy through the transmission power conversion module 2 and transmit it to the power transmission unit 5, and transmit the energy to the vehicle terminal in the form of an alternating magnetic field;

The power supply terminal communication unit 4 receives the feedback information of the vehicle terminal in real time, and transmits the feedback information to the transmission controller 3, and the transmission controller 3 adjusts the working parameters of the transmission power conversion module 2 in time; when the power supply terminal communication unit 4 receives the vehicle terminal, the completion of the When the feedback information of charging is received, the transmit controller 3 stops the work of the transmit power conversion module 2 .

The charging method disclosed here is described with the power supply terminal as the main body. Through the conversion processing and energy transfer of the power supply terminal, the conversion and transmission of electric energy can be realized, and the charging of the electrical equipment on the vehicle side and the energy storage of the energy storage equipment can be realized.

The electric energy is converted and processed by the transmission power conversion module 2 and then transmitted to the power transmission unit 5. In the specific execution process, the transmission power conversion module 2 includes a rectification and voltage adjustment circuit, an inverter circuit and a transmission network compensation circuit. The circuit converts the power frequency alternating current into direct current by the rectification and voltage adjustment circuit, and converts the direct current into high frequency alternating current through the inverter circuit, and finally converts the high frequency alternating current into high frequency alternating magnetic field after compensation by the transmitting network compensation circuit.

Among them, the rectification and voltage adjustment circuit, the inverter circuit and the transmission network compensation circuit can adopt the existing conventional circuits.

Example 3

As shown in FIG. 7 , the content of the above charging scheme is a description of the power supply side. The present invention also describes the on-board terminal side of the charging scheme. The wireless charging method for a new energy rail locomotive vehicle adopts the charging system described above. include:

The rail locomotive moves to the charging station, so that the power receiving unit 6 is magnetically coupled with the power supply terminal;

The power receiving unit 6 generates a current through the alternating magnetic field, and sends the current to the receiving power conversion module 7, and the receiving power conversion module 7 compensates and rectifies the current and sends it to the energy storage device 10;

The energy storage state of the energy storage device 10 is monitored in real time, and the monitoring results are fed back to the power supply terminal, and the parameters of the power supply terminal are adjusted in time to keep the working state of the energy storage device 10 normal, and the charging process of the energy storage device 10 is stopped after the charging requirements are met. .

The charging scheme disclosed here describes and describes the specific charging operation of the on-board terminal. When charging is required, after the rail locomotive vehicle travels to the designated charging position, magnetic coupling is performed in the alternating magnetic field provided by the power supply terminal, that is, A corresponding alternating current can be generated to achieve charging.

The real-time monitoring of the energy storage state parameters of the energy storage device 10, and the monitoring results are fed back to the power supply transmitting device. During the specific operation, the energy storage management device 12 detects the voltage, current, The temperature and capacity parameter information is transmitted to the vehicle-mounted communication unit 9, and the vehicle-mounted communication unit 9 sends the detection information to the power supply terminal.

The received power conversion module 7 compensates and rectifies the current and sends it to the energy storage device 10. Specifically, the current generated by the power receiving unit 6 after compensation is high-frequency alternating current, and the receiving power conversion module 7 performs the high-frequency alternating current. After rectification, it is converted into direct current, and the direct current charges the energy storage device 10 .

Preferably, in this embodiment, the rectification and voltage adjustment circuit, the inverter circuit, and the transmission network compensation circuit can use conventional circuits.

The above are the listed embodiments of the present invention, but the present invention is not limited to the above-mentioned optional embodiments. Those skilled in the art can arbitrarily combine the above-mentioned methods to obtain other various embodiments. Various other forms of implementation can be derived. The above specific embodiments should not be construed as limiting the protection scope of the present invention, which should be defined in the claims, and the description can be used to interpret the claims.

Claims (10)

1. A wireless charging system for new energy rail vehicles, characterized in that it includes: a power supply transmitting device, comprising a transmission power conversion module (2), the transmission power conversion module (2) being electrically connected to a power supply (1), a power transmission unit (5) and a transmission controller (3), respectively; A vehicle-mounted receiving device, comprising a receiving power conversion module (7), the receiving power conversion module (7) is electrically connected to a power receiving unit (6) and a receiving controller (8), respectively, the power transmitting unit (5) and The power receiving units (6) are close to each other and are arranged opposite to each other to form magnetic coupling; The energy storage device (10) is arranged on the rail vehicle and is electrically connected with the receiving power conversion module (7). 2. The wireless charging system for new energy rail locomotives according to claim 1, further comprising a communication module for promoting information exchange between the power supply transmitting device and the vehicle-mounted receiving device, the communication module comprising a power supply terminal arranged at the power supply transmitting device A communication unit (4) and a vehicle-mounted communication unit (9) provided at the vehicle-mounted receiving device, the power-supply-side communication unit (4) is electrically connected to the transmitter controller (3), and the vehicle-mounted communication unit (9) is electrically connected to the receiving control unit device (8). 3. The wireless charging system for a new energy rail locomotive vehicle according to claim 2, wherein the power supply end communication unit (4) and the vehicle end communication unit (9) are both wireless communication elements. 4. The wireless charging system for a new energy rail locomotive vehicle according to claim 1, characterized in that it further comprises an energy storage management device (12) for energy management, and the energy storage management device (12) is arranged on the vehicle At the receiving device, the energy storage management device (12) is electrically connected to the energy storage device (10). 5. The wireless charging system for new energy rail locomotives according to claim 1, characterized in that: it further comprises a locomotive and vehicle microcomputer control device (11) for controlling the running of the rail locomotive and vehicle, the locomotive and vehicle microcomputer control device (11) and the The receiving controller (8) is connected through a communication network. 6. A wireless charging method for a new energy rail locomotive vehicle, using the charging system according to any one of claims 1 to 5, characterized in that, comprising: The power supply (1) is connected, and the electric energy is converted and processed by the transmission power conversion module (2) and then transmitted to the power transmission unit (5), and the energy is transmitted to the vehicle terminal in the form of an alternating magnetic field; The power supply terminal communication unit (4) receives the feedback information of the vehicle terminal in real time, and transmits the feedback information to the transmission controller (3), and the transmission controller (3) adjusts the working parameters of the transmission power conversion module (2) in time; When the communication unit (4) receives the feedback information that the on-board terminal completes the charging, the transmission controller (3) stops the operation of the transmission power conversion module (2). 7. The wireless charging method for a new energy rail vehicle according to claim 6, wherein the electric energy is converted and processed by the transmission power conversion module (2) and then transmitted to the power transmission unit (5), characterized in that: the The transmitting power conversion module (2) includes a rectification and voltage adjustment circuit, an inverter circuit and a transmission network compensation circuit, the rectification and voltage adjustment circuit converts the power frequency alternating current into direct current, and the inverter circuit converts the direct current into high frequency alternating current Finally, the high-frequency alternating current is converted into a high-frequency alternating magnetic field after compensation is performed by the transmitting network compensation circuit. 8. A method for wireless charging of new energy rail locomotives, using the charging system according to any one of claims 1 to 5, characterized in that, comprising: The rail locomotive moves to the charging station, so that the power receiving unit (6) is magnetically coupled with the power supply terminal; The power receiving unit (6) generates current through the alternating magnetic field, and transmits the current to the receiving power conversion module (7), and the receiving power conversion module (7) compensates and rectifies the current and then transmits it to the energy storage device (10); The energy storage state of the energy storage device (10) is monitored in real time, the monitoring results are fed back to the power supply end, the parameters of the power supply end are adjusted in time, so that the working state of the energy storage device (10) is kept normal, and the energy storage device is stopped after the charging requirement is met (10) charging process. 9. The method for wireless charging of new energy rail locomotives according to claim 8, wherein the real-time monitoring of the energy storage state parameters of the energy storage device (10), and the monitoring results are fed back to the power supply transmitting device, characterized in that: The energy storage management device (12) detects the voltage, current, temperature and capacity parameter information of the energy storage device (10), and transmits the detection information to the vehicle-mounted communication unit (9), which sends the detection information to the vehicle-mounted communication unit (9). sent to the power supply. 10. The wireless charging method for a new energy rail locomotive vehicle according to claim 8, wherein the received power conversion module (7) compensates and rectifies the current and sends it to the energy storage device (10), characterized in that: the power The current generated by the receiving unit (6) after compensation is high-frequency alternating current, and the receiving power conversion module (7) rectifies the high-frequency alternating current and converts it into direct current, and the direct current charges the energy storage device (10).

Images