Power supply control system and method for dual-power vehicle, and device and medium

Abstract

A power supply control system (100) for a dual-power vehicle. The power supply control system is applied to a power supply control device of a dual-power vehicle, wherein the power supply control device comprises a pantograph (210), a vacuum circuit breaker (220), an alternating-current and direct-current change-over switch (230), a direct-current high-speed circuit breaker (240), a direct-current main loop (250) and an alternating-current main loop (260). The power supply control system comprises an acquisition module (110), a detection module (120) and a control module (130), wherein the acquisition module (110) is used for acquiring voltage information of the pantograph (210); the detection module (120) is used for receiving the voltage information, and determining the current power supply mode of the pantograph (210) on the basis of the voltage information; and the control module (130) is used for receiving the power supply mode, and switching the alternating-current and direct-current change-over switch (230) to a corresponding position on the basis of the power supply mode. The power supply control system for a dual-power vehicle can automatically control the switching of an alternating-current and direct-current change-over switch (230), thus improving the efficiency and accuracy of switching the alternating-current and direct-current change-over switch (230). A power supply control method for a dual-power vehicle, and an electronic device and a medium are further comprised.

Description

Power supply control system, power supply control method, equipment and medium for dual-flow vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 2023111527366 filed with the Chinese Patent Office on September 7, 2023, entitled “Power supply control system, power supply control method, equipment and medium for dual-flow vehicles”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of dual-current vehicles, and in particular to a power supply control system, power supply control method, equipment and medium for dual-current vehicles. Background Art

[0004] Dual-current vehicles are equipped with both AC and DC power supply systems and can switch between AC and DC power supply routes. Since the AC / DC voltages share a set of pantographs, the AC and DC power supply sides also need to be protected. Currently, the switching of power supply modes mainly relies on manual switching, and manual switching of the AC and DC switches is required according to the prompts on road signs.

[0005] Currently, this manual switching method of AC and DC is not intelligent, prone to errors, and fails to provide better protection for the power supply side. Therefore, how to control the power supply of dual-current vehicles has become an urgent problem to be solved.

[0006] Application Contents

[0007] In view of this, the purpose of this application is to provide a power supply control system, power supply control method, equipment and medium for dual-current vehicles, which can determine the current power supply mode through the voltage information of the pantograph, automatically control the switching of the AC / DC conversion switch through the power supply mode, and improve the efficiency and accuracy of switching the AC / DC conversion switch.

[0008] This application mainly includes the following aspects:

[0009] In a first aspect, an embodiment of the present application provides a power supply control system for a dual-current vehicle, which is applied to a power supply control device for a dual-current vehicle, the power supply control device including a pantograph, a vacuum circuit breaker, an AC / DC transfer switch, a DC high-speed circuit breaker, a DC main circuit, and an AC main circuit; the power supply control system includes an acquisition module, a detection module, and a control module;

[0010] The acquisition module is used to acquire the voltage information of the pantograph and send the voltage information to the detection module;

[0011] The detection module is configured to receive the voltage information sent by the acquisition module, determine the current power supply mode of the pantograph based on the voltage information, and send the power supply mode to the control module;

[0012] The control module is configured to receive the power supply mode sent by the detection module and switch the AC / DC conversion switch to a corresponding position based on the power supply mode.

[0013] Furthermore, the acquisition module is further configured to acquire a bow raising instruction for a dual-flow vehicle and send the bow raising instruction to the control module;

[0014] The control module is further configured to receive a pantograph raising instruction sent by the acquisition module, and control the pantograph of the dual-current vehicle to raise in response to the pantograph raising instruction to obtain voltage information.

[0015] Furthermore, if the power supply mode is DC power supply, the control module is used to:

[0016] Controlling the AC / DC conversion switch to switch to the first gear position to connect the AC / DC conversion switch to the DC high-speed circuit breaker;

[0017] Determine whether the vacuum circuit breaker is closed. After determining that the vacuum circuit breaker is closed, control the DC high-speed circuit breaker to close, so as to connect the DC high-speed circuit breaker to the DC main circuit and provide DC power to the DC main circuit.

[0018] Furthermore, if the power supply mode is AC power supply, the control module is used to:

[0019] The AC / DC conversion switch is controlled to switch to the second gear position to connect the AC / DC conversion switch to the AC main circuit to provide AC power to the AC main circuit.

[0020] Furthermore, there are multiple DC high-speed circuit breakers, each of which is connected to the AC / DC conversion switch and the DC main circuit; and the control module is further configured to:

[0021] If any of the traction devices corresponding to each DC high-speed circuit breaker generates error information, the DC high-speed circuit breaker corresponding to the traction device generating the error information is controlled to be disconnected.

[0022] Furthermore, the control module is further configured to:

[0023] In response to a power-off instruction, if the current power supply mode is DC power supply, controlling all DC high-speed circuit breakers to be disconnected based on the power-off instruction;

[0024] After determining that all DC high-speed circuit breakers are disconnected, controlling the vacuum circuit breaker to disconnect;

[0025] If the current power supply mode is AC power supply, the vacuum circuit breaker is controlled to be disconnected based on the power-off instruction.

[0026] Furthermore, the control module is further configured to:

[0027] In response to the bow raising instruction, determining whether all DC high-speed circuit breakers are disconnected;

[0028] After determining that all DC high-speed circuit breakers are disconnected, the vacuum circuit breaker of the dual-current vehicle is controlled to be closed.

[0029] In a second aspect, an embodiment of the present application further provides a power supply control method for a dual-current vehicle, the power supply control method being applied to a power supply control system for a dual-current vehicle as described above, the power supply control method comprising:

[0030] The control acquisition module acquires the voltage information of the pantograph and sends the voltage information to the detection module;

[0031] The control detection module receives the voltage information sent by the acquisition module, determines the current power supply mode of the pantograph based on the voltage information, and sends the power supply mode to the control module;

[0032] The control module is controlled to receive the power supply mode sent by the detection module, and the AC / DC conversion switch is switched to a corresponding position based on the power supply mode.

[0033] In a third aspect, an embodiment of the present application further provides an electronic device comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the power supply control method for a dual-flow vehicle as described above are performed.

[0034] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the power supply control method for a dual-flow vehicle as described above are executed.

[0035] The embodiments of the present application provide a power supply control system, a power supply control method, an apparatus and a medium for a dual-current vehicle, which are applied to the power supply control equipment of a dual-current vehicle, wherein the power supply control equipment includes a pantograph, a vacuum circuit breaker, an AC / DC conversion switch, a DC high-speed circuit breaker, a DC main circuit and an AC main circuit; the power supply control system includes an acquisition module, a detection module and a control module; the acquisition module is used to acquire the voltage information of the pantograph and send the voltage information to the detection module; the detection module is used to receive the voltage information sent by the acquisition module, determine the current power supply mode of the pantograph based on the voltage information, and send the power supply mode to the control module; the control module is used to receive the power supply mode sent by the detection module, and switch the AC / DC conversion switch to a corresponding position based on the power supply mode.

[0036] In this way, the technical solution provided by this application can determine the current power supply mode through the voltage information of the pantograph, automatically control the switching of the AC / DC conversion switch through the power supply mode, and improve the efficiency and accuracy of switching the AC / DC conversion switch.

[0037] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0039] FIG1 shows a schematic structural diagram of a power supply control system for a dual-current vehicle provided in an embodiment of the present application;

[0040] FIG2 shows a schematic structural diagram of a power supply control device for a dual-current vehicle provided in an embodiment of the present application;

[0041] FIG3 shows a flow chart of a power supply control method for a dual-current vehicle provided in an embodiment of the present application;

[0042] FIG4 shows a schematic structural diagram of an electronic device provided in an embodiment of the present application.

[0043] Icons: 100 - power supply control system; 110 - acquisition module; 120 - detection module; 130 - control module; 200 - power supply control equipment; 210 - pantograph; 220 - vacuum circuit breaker; 230 - AC / DC transfer switch; 240 - DC high-speed circuit breaker; 250 - DC main circuit; 260 - AC main circuit; 400 - electronic equipment; 410 - processor; 420 - memory; 430 - bus. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of illustration and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts can be implemented out of sequence, and steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art, under the guidance of the contents of this application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0045] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0046] In order to enable those skilled in the art to use the contents of this application, the following implementation method is given in combination with the specific application scenario of "power supply control for dual-flow vehicles". For those skilled in the art, the general principles defined here can be applied to other embodiments and application scenarios without departing from the spirit and scope of this application.

[0047] The following systems, methods, electronic devices or computer-readable storage media of the embodiments of the present application can be applied to any scenario requiring power supply control for dual-flow vehicles. The embodiments of the present application are not limited to specific application scenarios. Any solution using a power supply control system, power supply control method, electronic device and storage medium for a dual-flow vehicle provided by the embodiments of the present application is within the scope of protection of this application.

[0048] It is worth noting that dual-current vehicles are equipped with both AC and DC power supply systems and can switch between AC and DC power supply routes. Since the AC / DC voltages share a set of pantographs, the AC power supply side and the DC power supply side also need to be protected. At present, the switching of power supply modes mainly relies on manual switching, and manual switching of the AC and DC switches is required according to the prompts on road signs.

[0049] Currently, this manual switching method of AC and DC is not intelligent, prone to errors, and fails to provide better protection for the power supply side. Therefore, how to control the power supply of dual-current vehicles has become an urgent problem to be solved.

[0050] Based on this, the present application proposes a power supply control system, power supply control method, equipment and medium for dual-current vehicles, which are applied to the power supply control equipment of dual-current vehicles, the power supply control equipment including a pantograph, a vacuum circuit breaker, an AC / DC conversion switch, a DC high-speed circuit breaker, a DC main circuit and an AC main circuit; the power supply control system includes an acquisition module, a detection module and a control module; the acquisition module is used to acquire the voltage information of the pantograph and send the voltage information to the detection module; the detection module is used to receive the voltage information sent by the acquisition module, determine the current power supply mode of the pantograph based on the voltage information, and send the power supply mode to the control module; the control module is used to receive the power supply mode sent by the detection module, and switch the AC / DC conversion switch to the corresponding position based on the power supply mode.

[0051] In this way, the technical solution provided by this application can determine the current power supply mode through the voltage information of the pantograph, automatically control the switching of the AC / DC conversion switch through the power supply mode, and improve the efficiency and accuracy of switching the AC / DC conversion switch.

[0052] To facilitate understanding of the present application, the technical solutions provided in the present application are described in detail below in conjunction with specific embodiments.

[0053] Please refer to Figure 1, which is a structural diagram of a power supply control system for a dual-flow vehicle provided in an embodiment of the present application. As shown in Figure 1, the power supply control system 100 includes: an acquisition module 110, a detection module 120 and a control module 130; the acquisition module 110 is communicated with the detection module 120, and the detection module 120 is communicated with the control module 130; the power supply control system 100 is applied to a power supply control device 200 for a dual-flow vehicle, where the dual-flow vehicle can be a dual-flow rail transit vehicle; Please refer to Figure 2, which is a structural diagram of a power supply control device for a dual-flow vehicle provided in an embodiment of the present application. As shown in Figure 2, the power supply control device 200 includes a receiving Pantograph 210, vacuum circuit breaker 220, AC / DC conversion switch 230, DC high-speed circuit breaker 240, DC main circuit 250 and AC main circuit 260; when the vacuum circuit breaker 220 is closed and the AC / DC conversion switch 230 is connected to the AC main circuit 260, the pantograph 210 is connected to the AC main circuit 260 through the vacuum circuit breaker 220 and the AC / DC conversion switch 230; when the vacuum circuit breaker 220 is closed and the AC / DC conversion switch 230 is connected to the DC high-speed circuit breaker 240 and the DC high-speed circuit breaker 240 are both closed, the pantograph 210 is connected to the DC main circuit 250 through the vacuum circuit breaker 220, the AC / DC conversion switch 230 and the DC high-speed circuit breaker 240.

[0054] Specifically, the acquisition module 110 is used to acquire the voltage information of the pantograph 210 and send the voltage information to the detection module 120; the detection module 120 is used to receive the voltage information sent by the acquisition module 110, determine the current power supply mode of the pantograph 210 based on the voltage information, and send the power supply mode to the control module 130; the control module 130 is used to receive the power supply mode sent by the detection module 120, and switch the AC / DC conversion switch 230 to a corresponding position based on the power supply mode.

[0055] Here, the voltage is used to determine whether the current is direct current or alternating current. If it is alternating current, the AC / DC conversion switch 230 needs to be switched to a position connected to the AC main circuit 260. Here, before switching the AC / DC conversion switch, the vacuum circuit breaker 220 is in a closed state, that is, it is in a state connected to the pantograph 210.

[0056] Furthermore, the acquisition module 110 is also used to obtain the pantograph raising instruction of the dual-current vehicle and send the pantograph raising instruction to the control module 130; the control module 130 is also used to receive the pantograph raising instruction sent by the acquisition module 110, and control the pantograph 210 of the dual-current vehicle to raise in response to the pantograph raising instruction to obtain voltage information.

[0057] Here, the pantograph raising button can be touched, for example, the touch operation can be clicking or pressing the pantograph raising button. In response to the touch operation, a pantograph raising instruction is obtained, and the pantograph 210 is raised so that the pantograph 210 is connected to the contact network to obtain charging information, and then based on the charging information, it is determined whether the current currently obtained is direct current or alternating current, thereby determining whether to switch the AC / DC conversion switch 230.

[0058] Furthermore, if the power supply mode is DC power supply, the control module 130 is used to: control the AC / DC conversion switch 230 to switch to the first gear to connect the AC / DC conversion switch 230 to the DC high-speed circuit breaker 240; determine whether the vacuum circuit breaker 220 is closed, and after determining that the vacuum circuit breaker 220 is closed, control the DC high-speed circuit breaker 240 to close to connect the DC high-speed circuit breaker 240 to the DC main circuit 250 to provide DC power to the DC main circuit 250.

[0059] Here, if the current current is direct current, the AC / DC conversion switch 230 is switched to the gear position connected to the DC high-speed circuit breaker 240 (i.e., the first gear position). Before closing the DC high-speed circuit breaker 240, it is necessary to determine whether the vacuum circuit breaker 220 is closed. Only after the vacuum circuit breaker 220 is closed can the DC high-speed circuit breaker 240 be closed, thereby providing direct current to the DC main circuit 250.

[0060] Furthermore, if the power supply mode is AC power supply, the control module 130 is used to: control the AC / DC conversion switch 230 to switch to the second gear to connect the AC / DC conversion switch 230 to the AC main circuit 260 to provide AC power to the AC main circuit 260.

[0061] Here, if the current is AC, the AC / DC conversion switch 230 is switched to the gear position (ie, the second gear position) connected to the vacuum circuit breaker 220 , thereby providing AC power to the AC main circuit 260 .

[0062] Furthermore, there are multiple DC high-speed circuit breakers 240, and each DC high-speed circuit breaker 240 is connected to the AC-DC conversion switch 230 and the DC main circuit 250; the control module 130 is also used to: among the traction devices corresponding to each DC high-speed circuit breaker 240, if any traction device generates an error message, control the DC high-speed circuit breaker 240 corresponding to the traction device that generates the error message to be disconnected.

[0063] Here, before closing the DC high-speed circuit breaker 240, it is also necessary to determine whether the traction device connected to the current DC high-speed circuit breaker 240 in the DC main circuit is normal, for example, whether it is in the corresponding position. If not, an error message is generated. In response to the error message, the DC high-speed circuit breaker 240 corresponding to the traction device that generates the error message is controlled not to be closed; or, in the process of providing DC power to the DC main circuit 250 after the DC high-speed circuit breaker 240 is closed, as long as any device corresponding to the DC high-speed circuit breaker generates an error message, the DC high-speed circuit breaker 240 corresponding to the device that generates the error message needs to be disconnected to protect the DC side power supply without affecting the working conditions of other normal DC high-speed circuit breakers 240.

[0064] Furthermore, the control module 130 is also used to: in response to a power-off instruction, if the current power supply mode is DC power supply, control all DC high-speed circuit breakers 240 to be disconnected based on the power-off instruction; after determining that all DC high-speed circuit breakers 240 are disconnected, control the vacuum circuit breaker 220 to be disconnected; if the current power supply mode is AC power supply, control the vacuum circuit breaker 220 to be disconnected based on the power-off instruction.

[0065] Here, the pantograph lowering button can be touched, for example, the touch operation can be clicking or pressing the pantograph lowering button. The acquisition module 110 responds to the touch operation, obtains the pantograph lowering instruction and sends it to the control module 130. The control module 130 controls the pantograph 210 to descend based on the pantograph lowering instruction. A power-off instruction can be generated at the same time. The pantograph lowering instruction can be used as a power-off instruction. In response to the power-off instruction, the current power supply mode is determined. If it is DC power supply, all DC high-speed circuit breakers 240 need to be disconnected before the vacuum circuit breaker 220 can be disconnected. If it is AC power supply, only the vacuum circuit breaker 220 needs to be disconnected.

[0066] Furthermore, the control module 130 is also used to: determine whether all DC high-speed circuit breakers 240 are disconnected in response to the bow raising instruction; after determining that all DC high-speed circuit breakers 240 are disconnected, control the vacuum circuit breaker 220 of the dual-current vehicle to close.

[0067] Here, the bow raising instruction is equivalent to the charging instruction, so when the dual-current vehicle is charging, the vacuum circuit breaker 220 needs to be closed. However, before closing the vacuum circuit breaker 220, it is necessary to ensure that all DC high-speed circuit breakers 240 are in the disconnected state. Only after it is determined that all DC high-speed circuit breakers 240 are disconnected can the vacuum circuit breaker 220 be closed to protect the DC power supply side.

[0068] As an example, in an AC25kV / DC1500V dual-mode power supply vehicle, the pantograph is shared by AC and DC, and the entire high-voltage main circuit includes two power supply control devices 200. Each power supply control device 200 is equipped with one vacuum circuit breaker 220 (main breaker) and three DC high-speed circuit breakers 240 (high-break) and one AC / DC conversion switch 230. When AC power is supplied, the vehicle only closes the main breaker for operation, and when DC power is supplied, the main breaker and high-break must be closed for operation. The number of power supply control devices 200 set on each dual-current vehicle is determined by the performance of the dual-current vehicle. If the current charging current cannot be borne by one power supply control device 200, multiple power supply control devices 200 need to be set for current diversion.

[0069] Here, the main breaker has the ability to extinguish AC arcs, and can close or disconnect the high-voltage main circuit when powered by AC25kV, but cannot close or disconnect the high-voltage main circuit when powered by DC1500V; the high-voltage breaker has the ability to extinguish DC arcs, and can close or disconnect the high-voltage main circuit when powered by DC1500V, but cannot close or disconnect the high-voltage main circuit when powered by AC25kV. Therefore, the main breaker and the high-voltage breaker should be provided with necessary interlocking logic to ensure vehicle safety. That is, the main breaker can only be closed when both high-voltage breaker and the high-voltage breaker are not closed; after any high-voltage breaker is closed, the high-voltage breaker must be opened first and then the main breaker; after the main breaker is closed, the high-voltage breaker can be closed; when insufficient wind pressure occurs, the high-voltage breaker will automatically trip, which can prevent the main breaker from tripping first under DC conditions due to insufficient wind pressure. Therefore, this embodiment can more intelligently realize the protection of the AC power supply side and the DC power supply side while realizing the switching of the pantograph power supply mode of dual-current vehicles.

[0070] An embodiment of the present application provides a power supply control system for a dual-current vehicle, which is applied to the power supply control equipment of a dual-current vehicle, the power supply control equipment including a pantograph, a vacuum circuit breaker, an AC / DC conversion switch, a DC high-speed circuit breaker, a DC main circuit and an AC main circuit; the power supply control system includes an acquisition module, a detection module and a control module; the acquisition module is used to acquire voltage information of the pantograph and send the voltage information to the detection module; the detection module is used to receive the voltage information sent by the acquisition module, determine the current power supply mode of the pantograph based on the voltage information, and send the power supply mode to the control module; the control module is used to receive the power supply mode sent by the detection module, and switch the AC / DC conversion switch to a corresponding position based on the power supply mode.

[0071] In this way, the technical solution provided by this application can determine the current power supply mode through the voltage information of the pantograph, automatically control the switching of the AC / DC conversion switch through the power supply mode, and improve the efficiency and accuracy of switching the AC / DC conversion switch.

[0072] Based on the same application concept, an embodiment of the present application also provides a power supply control method for a dual-flow vehicle, which is applied to the power supply control system of a dual-flow vehicle described in any of the above items. Since the principle of solving the problem by the method in the embodiment of the present application is similar to that of a power supply control system for a dual-flow vehicle in the above embodiment of the present application, the implementation of the method can refer to the implementation of the system, and the repeated parts will not be repeated.

[0073] Please refer to FIG3 , which is a flow chart of a power supply control method for a dual-current vehicle provided in an embodiment of the present application. As shown in FIG3 , the power supply control method includes:

[0074] S301, controlling the acquisition module to acquire voltage information of the pantograph, and sending the voltage information to the detection module;

[0075] It should be noted that the acquisition module is controlled to obtain the pantograph voltage information through the following steps:

[0076] 1. Controlling the acquisition module to acquire a bow raising instruction for a dual-flow vehicle, and sending the bow raising instruction to the control module;

[0077] 2. Control the control module to receive the pantograph raising instruction sent by the acquisition module, and control the pantograph of the dual-current vehicle to raise in response to the pantograph raising instruction to obtain voltage information.

[0078] It should be noted that the power supply control method further includes:

[0079] (1) controlling the control module to respond to a power-off instruction, and if the current power supply mode is DC power supply, controlling all DC high-speed circuit breakers to be disconnected based on the power-off instruction;

[0080] (2) After determining that all DC high-speed circuit breakers are disconnected, controlling the vacuum circuit breaker to disconnect;

[0081] (3) If the current power supply mode is AC power supply, the vacuum circuit breaker is controlled to disconnect based on the power-off instruction.

[0082] It should be noted that the power supply control method further includes:

[0083] ①, controlling the control module to respond to the bow raising instruction to determine whether all DC high-speed circuit breakers are disconnected;

[0084] ② After confirming that all DC high-speed circuit breakers are disconnected, control the vacuum circuit breaker of the dual-current vehicle to close.

[0085] S302, the control detection module receives the voltage information sent by the acquisition module, determines the current power supply mode of the pantograph based on the voltage information, and sends the power supply mode to the control module;

[0086] S303: Control the control module to receive the power supply mode sent by the detection module, and switch the AC / DC conversion switch to a corresponding position based on the power supply mode.

[0087] It should be noted that if the power supply mode is DC power supply, the steps of switching the AC / DC conversion switch to the corresponding position based on the power supply mode include:

[0088] S30311. Control the AC / DC conversion switch to switch to the first gear position to connect the AC / DC conversion switch to the DC high-speed circuit breaker;

[0089] S30312. Determine whether the vacuum circuit breaker is closed. After determining that the vacuum circuit breaker is closed, control the DC high-speed circuit breaker to close, so as to connect the DC high-speed circuit breaker to the DC main circuit and provide DC power to the DC main circuit.

[0090] It should be noted that, if the power supply mode is AC power supply, the step of switching the AC / DC conversion switch to a corresponding position based on the power supply mode further includes:

[0091] S30321. Control the AC / DC conversion switch to switch to the second gear position to connect the AC / DC conversion switch to the AC main circuit to provide AC power to the AC main circuit.

[0092] Furthermore, there are multiple DC high-speed circuit breakers, each of which is connected to the AC / DC converter and the DC main circuit; the power supply control method further includes:

[0093] 1) If any of the traction devices corresponding to each DC high-speed circuit breaker generates error information, the DC high-speed circuit breaker corresponding to the traction device generating the error information is controlled to be disconnected.

[0094] An embodiment of the present application provides a power supply control method for a dual-current vehicle, which is applied to a power supply control system of a dual-current vehicle as described in any one of the above. The power supply control method includes: controlling the acquisition module to acquire voltage information of the pantograph, and sending the voltage information to the detection module; controlling the detection module to receive the voltage information sent by the acquisition module, determining the current power supply mode of the pantograph based on the voltage information, and sending the power supply mode to the control module; controlling the control module to receive the power supply mode sent by the detection module, and switching the AC / DC conversion switch to a corresponding position based on the power supply mode.

[0095] In this way, the technical solution provided by this application can determine the current power supply mode through the voltage information of the pantograph, automatically control the switching of the AC / DC conversion switch through the power supply mode, and improve the efficiency and accuracy of switching the AC / DC conversion switch.

[0096] Please refer to Figure 4 , which is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. As shown in Figure 4 , the electronic device 400 includes a processor 410 , a memory 420 , and a bus 430 .

[0097] The memory 420 stores machine-readable instructions executable by the processor 410. When the electronic device 400 is running, the processor 410 communicates with the memory 420 through the bus 430. When the machine-readable instructions are executed by the processor 410, the steps of the power supply control method for a dual-flow vehicle in the method embodiment shown in Figure 3 above can be executed. The specific implementation method can be found in the method embodiment and will not be repeated here.

[0098] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, it can execute the steps of the power supply control method for a dual-flow vehicle in the method embodiment shown in Figure 3 above. The specific implementation method can be found in the method embodiment and will not be repeated here.

[0099] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0100] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0102] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0103] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media that can store program codes.

[0104] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-mentioned embodiments within the technical scope disclosed in the present application, or perform equivalent replacements for some of the technical features thereof. These modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A power supply control system for a dual-current vehicle, characterized in that: A power supply control device applied to a dual-current vehicle, the power supply control device comprising a pantograph, a vacuum circuit breaker, an AC / DC conversion switch, a DC high-speed circuit breaker, a DC main circuit and an AC main circuit; the power supply control system comprises an acquisition module, a detection module and a control module; The acquisition module is used to acquire the voltage information of the pantograph and send the voltage information to the detection module; The detection module is used to receive the voltage information sent by the acquisition module, determine the current power supply mode of the pantograph based on the voltage information, and send the power supply mode to the control module; The control module is used to receive the power supply mode sent by the detection module, and switch the AC / DC conversion switch to a corresponding position based on the power supply mode.

2. The power supply control system according to claim 1, characterized in that: The acquisition module is further used to acquire a bow raising instruction of a dual-flow vehicle and send the bow raising instruction to the control module; The control module is further used to receive a pantograph raising instruction sent by the acquisition module, and in response to the pantograph raising instruction, control the pantograph of the dual-current vehicle to raise to obtain voltage information.

3. The power supply control system according to claim 1, characterized in that: If the power supply mode is direct current power supply, the control module is used to: Controlling the AC / DC conversion switch to switch to the first gear position to connect the AC / DC conversion switch to the DC high-speed circuit breaker; Determine whether the vacuum circuit breaker is closed. After determining that the vacuum circuit breaker is closed, control the DC high-speed circuit breaker to close so as to connect the DC high-speed circuit breaker to the DC main circuit to provide DC power to the DC main circuit.

4. The power supply control system according to claim 1, characterized in that: If the power supply mode is AC power supply, the control module is used to: The AC / DC conversion switch is controlled to switch to the second gear position to connect the AC / DC conversion switch to the AC main circuit to provide AC power to the AC main circuit.

5. The power supply control system according to claim 3, characterized in that: There are multiple DC high-speed circuit breakers, each of which is connected to the AC / DC conversion switch and the DC main circuit; the control module is also used for: Among the traction devices corresponding to each DC high-speed circuit breaker, if any traction device generates error information, the DC high-speed circuit breaker corresponding to the traction device generating the error information is controlled to be disconnected.

6. The power supply control system according to claim 1, characterized in that: The control module is also used for: In response to a power-off instruction, if the current power supply mode is DC power supply, all DC high-speed circuit breakers are controlled to be disconnected based on the power-off instruction; After determining that all DC high-speed circuit breakers are disconnected, controlling the vacuum circuit breaker to disconnect; If the current power supply mode is AC power supply, the vacuum circuit breaker is controlled to be disconnected based on the power-off instruction.

7. The power supply control system according to claim 2, characterized in that: The control module is also used for: In response to the bow raising instruction, determining whether all DC high-speed circuit breakers are disconnected; After determining that all DC high-speed circuit breakers are disconnected, the vacuum circuit breaker of the dual-current vehicle is controlled to close.

8. A power supply control method for a dual-current vehicle, characterized in that: The power supply control method is applied to a power supply control system of a dual-current vehicle according to any one of claims 1 to 7, and the power supply control method comprises: The control acquisition module acquires the voltage information of the pantograph and sends the voltage information to the detection module; The control detection module receives the voltage information sent by the acquisition module, determines the current power supply mode of the pantograph based on the voltage information, and sends the power supply mode to the control module; The control module is controlled to receive the power supply mode sent by the detection module, and the AC / DC conversion switch is switched to a corresponding position based on the power supply mode.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the power supply control method for a dual-current vehicle as described in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the power supply control method for a dual-current vehicle as claimed in claim 8 are executed.

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