Control method and apparatus for solid-state changeover switch, and readable storage medium

Abstract

The present application relates to the technical field of switch control, and provides a control method and apparatus for a solid-state changeover switch, and a readable storage medium. The solid-state changeover switch is used for controlling a power supply system. The power supply system is used for supplying power to a load, and comprises a solid-state changeover switch, an energy storage converter, a battery and a power grid, wherein the energy storage converter is connected to the battery; the solid-state changeover switch is connected to the power grid; the power grid is connected to the energy storage converter; and the load is respectively connected to the solid-state changeover switch and the energy storage converter. The control method for a solid-state changeover switch comprises: when power is supplied to a load by means of an energy storage converter and a battery and when a power supply state of a power grid is the power supply being available, switching on a solid-state changeover switch, and adjusting a second voltage and a second phase of the energy storage converter according to a first voltage and a first phase of the power grid; and when the second voltage is equal to the first voltage and the second phase is equal to the first phase, stopping the operation of the energy storage converter, and supplying power to the load by means of the power grid.

Description

Control method, device and readable storage medium of solid-state switch

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on June 14, 2023, with application number "202310700591.2" and application name "Control method, device and readable storage medium for solid-state switching switch", the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of switch control technology, and in particular to a control method, device, and readable storage medium for a solid-state switching switch. Background Art

[0003] The power supply system is a system that can supply power to the load. The power supply system includes multiple power sources such as the power grid and batteries. In the event of a power outage or failure in the power grid, the battery supplies power to the load. At present, mechanical switches can be deployed in the power supply system to switch power sources through mechanical switches. However, mechanical switches currently have slow switching speeds and cannot meet the requirements of speed and synchronization.

[0004] Summary of the Invention

[0005] The present application aims to at least solve the technical problems existing in the prior art or related art, such as slow switch switching speed and inability to meet the requirements of speed and synchronization.

[0006] To this end, a first aspect of the present application is to propose a control method for a solid-state switch.

[0007] A second aspect of the present application is to provide a control device for a solid-state switch.

[0008] A third aspect of the present application is to provide another control device for a solid-state switch.

[0009] A fourth aspect of the present application is to provide a readable storage medium.

[0010] In view of this, according to the first aspect of the present application, a control method for a solid-state switching switch is proposed, wherein the solid-state switching switch is used to control a power supply system, and the power supply system is used to power a load. The power supply system includes a solid-state switching switch, an energy storage converter, a battery and a power grid, the energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter, respectively. The control method for the solid-state switching switch includes: when the load is powered by the energy storage converter and the battery, and the power supply state of the power grid is that power can be supplied, closing the solid-state switching switch, adjusting the second voltage and second phase of the energy storage converter according to the first voltage and first phase of the power grid; when the second voltage is equal to the first voltage and the second phase is equal to the first phase, stopping the operation of the energy storage converter and powering the load through the power grid.

[0011] The control method of the solid-state switching switch in the present technical solution closes the solid-state switching switch and detects the first voltage and the first phase of the power grid when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power-available. The second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid. When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter and supplies power to the load through the power grid, which greatly shortens the power switching time of the power supply system, improves the power switching speed of the power supply system, and ensures the synchronization and safety of the power supply system.

[0012] According to the second aspect of the present application, a control device for a solid-state switching switch is proposed, wherein the solid-state switching switch is used to control a power supply system, which is used to supply power to a load. The power supply system includes a solid-state switching switch, an energy storage converter, a battery, and a power grid. The energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter, respectively. The control device for the solid-state switching switch includes: a control module, which is used to close the solid-state switching switch when the load is supplied with power through the energy storage converter and the battery and the power supply state of the power grid is that power can be supplied, and adjust the second voltage and second phase of the energy storage converter according to the first voltage and first phase of the power grid; the control module is also used to stop the operation of the energy storage converter when the second voltage is equal to the first voltage and the second phase is equal to the first phase, and supply power to the load through the power grid.

[0013] The control device of the solid-state switching switch in the present technical solution closes the solid-state switching switch and detects the first voltage and the first phase of the power grid when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power-available. The second voltage and the second phase of the energy storage converter are adjusted according to the first voltage and the first phase of the power grid. When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter and supplies power to the load through the power grid, which greatly shortens the power switching time of the power supply system, improves the power switching speed of the power supply system, and ensures the synchronization and safety of the power supply system.

[0014] According to a third aspect of the present application, another solid-state switch control device is provided, comprising a processor and a memory, wherein the memory stores a program or instructions that, when executed by the processor, implement the steps of the solid-state switch control method described in any of the aforementioned technical solutions. Therefore, the solid-state switch control device possesses all the beneficial effects of the solid-state switch control method described in any of the aforementioned technical solutions, and further description thereof is omitted.

[0015] According to a fourth aspect of the present application, a readable storage medium is provided, storing a program or instructions thereon. When executed by a processor, the program or instructions implement the solid-state switch control method described in any of the above-mentioned technical solutions. Therefore, the readable storage medium possesses all the beneficial effects of the solid-state switch control method described in any of the above-mentioned technical solutions, and further description thereof is omitted here.

[0016] Additional aspects and advantages of the present application will become apparent in the following description or may be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] FIG1 shows a schematic flow chart of a control method for a solid-state switch according to an embodiment of the present application;

[0019] FIG2 shows a second flow chart of a control method for a solid-state switch in an embodiment of the present application;

[0020] FIG3 shows a third flow chart of a control method for a solid-state switch in an embodiment of the present application;

[0021] FIG4 shows a fourth flow chart of a control method for a solid-state switch in an embodiment of the present application;

[0022] FIG5 shows a fifth flow chart of a control method for a solid-state switch in an embodiment of the present application;

[0023] FIG6 shows a sixth flow chart of a control method for a solid-state switch in an embodiment of the present application;

[0024] FIG7 shows a seventh flow chart of a method for controlling a solid-state switch in an embodiment of the present application;

[0025] FIG8 shows one structural block diagram of a control device for a solid-state switch in an embodiment of the present application;

[0026] FIG9 shows one of the schematic diagrams of a control device for a solid-state switch in an embodiment of the present application;

[0027] FIG10 shows a second schematic diagram of the control device of the solid-state switch in an embodiment of the present application;

[0028] FIG11 shows a second structural block diagram of the control device of the solid-state switch in the embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0031] The control method, device, and readable storage medium of the solid-state switch provided in the embodiments of the present application are described in detail below with reference to FIG. 1 to FIG. 11 through specific embodiments and their application scenarios.

[0032] In one embodiment of the present application, as shown in FIG1 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0033] Step 102: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0034] Step 104 : When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid.

[0035] In this embodiment, a control method for a solid-state switching switch is provided, wherein the solid-state switching switch is used to control a power supply system, which is a system for supplying power to a load. The power supply system includes a solid-state switching switch, an energy storage converter, a battery, and a power grid. The energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter, respectively. The solid-state switching switch is a switch for switching power supply between the power grid and the battery, and the energy storage converter is a device for converting current.

[0036] Exemplarily, the battery may be a DC energy storage battery, and the power grid may be an AC power grid.

[0037] When the load is powered by the energy storage converter and the battery, and the power supply status of the power grid is that it can supply power, it means that the power supply status of the power grid has been restored. The power supply system closes the solid-state switch and detects the first voltage and the first phase of the power grid. According to the first voltage and the first phase of the power grid, the second voltage and the second phase of the energy storage converter are adjusted. The power supply status of the power grid is the operating status of the power grid, the first voltage is the real-time voltage of the power grid, the first phase is the real-time phase of the power grid, the second voltage is the voltage value at both ends of the energy storage converter, and the second phase is the phase of the energy storage converter.

[0038] For example, when the power supply status of the power grid is unavailable, the power supply system disconnects the solid-state switch and supplies power to the load through the energy storage converter and the battery.

[0039] When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops operating the energy storage converter and supplies power to the load through the power grid.

[0040] It should be noted that after adjusting the second voltage and second phase of the energy storage converter to the first voltage and first phase of the grid, shutting down the energy storage converter can ensure stable operation of the power supply system and power supply safety for the load.

[0041] It should also be noted that the state switching time of the solid-state switch is short, which ensures the power switching speed of the power supply system. For example, the state switching time of the solid-state switch can be specifically 5ms to 10ms.

[0042] The control method of the solid-state switching switch in this embodiment closes the solid-state switching switch and detects the first voltage and first phase of the power grid when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power-available. The second voltage and second phase of the energy storage converter are adjusted according to the first voltage and first phase of the power grid. When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter and supplies power to the load through the power grid, which greatly shortens the power switching time of the power supply system, improves the power switching speed of the power supply system, and ensures the synchronization and safety of the power supply system.

[0043] In one embodiment of the present application, as shown in FIG2 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0044] Step 202: Convert the DC power output by the battery into AC power through an energy storage converter to connect the battery and the load;

[0045] Step 204, supplying power to the load via the battery;

[0046] Step 206: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0047] Step 208 : When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid.

[0048] In this embodiment, the power supply system starts the energy storage converter, which converts the direct current output by the battery into alternating current to connect the battery and the load, and then the battery supplies power to the load.

[0049] Exemplarily, the power supply system disconnects the solid-state switch, starts the energy storage converter, and then supplies power to the load through the battery.

[0050] The control method of the solid-state switching switch in this embodiment starts the energy storage inverter, and converts the direct current output of the battery into alternating current through the energy storage inverter to connect the battery and the load, and then powers the load through the battery, thereby ensuring the operational stability of the power supply system. In the event of problems with the power grid, the power supply system can provide normal power to the load.

[0051] In one embodiment of the present application, as shown in FIG3 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0052] Step 302: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0053] In step 304, when the second voltage is equal to the first voltage and the second phase is equal to the first phase, the energy storage converter is stopped, and when the solid-state switch is in a closed state, the grid and the load are connected through the solid-state switch to control the grid to supply power to the load.

[0054] In this embodiment, when the solid-state switch is in a closed state, the power supply system connects the grid and the load through the solid-state switch, thereby controlling the grid to supply power to the load.

[0055] Illustratively, the solid-state switch may include a thyristor.

[0056] Illustratively, the solid-state switch may include an insulated gate bipolar transistor.

[0057] The control method of the solid-state switching switch in this embodiment connects the power grid and the load through the solid-state switching switch when the solid-state switching switch is in a closed state, and then controls the power grid to supply power to the load. The solid-state switching switch ensures the response speed of the power supply system and ensures the normal power supply of the power supply system to the load.

[0058] In one embodiment of the present application, as shown in FIG4 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0059] Step 402, determining a power supply state of the power grid according to a first voltage of the power grid;

[0060] Step 404: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0061] Step 406 : When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid.

[0062] In this embodiment, the power supply system detects the first voltage of the power grid in real time, and determines the power supply status of the power grid according to the first voltage of the power grid.

[0063] For example, the power supply status of the power grid may be specifically power supplyable or power unavailable.

[0064] The control method of the solid-state switching switch in this embodiment detects the first voltage of the power grid in real time, and determines the power supply status of the power grid based on the first voltage of the power grid, thereby ensuring the accuracy of the detection of the power supply status of the power grid and further ensuring the operating stability of the power supply system.

[0065] In one embodiment of the present application, as shown in FIG5 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0066] Step 502: When the first voltage is greater than or equal to the voltage threshold, determine that the power supply state of the power grid is ready for power supply;

[0067] Step 504: When the first voltage is less than the voltage threshold, determine that the power supply state of the power grid is unavailable for power supply;

[0068] Step 506: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0069] Step 508 : When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid.

[0070] In this embodiment, the power supply system detects the first voltage of the power grid in real time. When the first voltage is greater than or equal to the voltage threshold, it indicates that the power grid is operating well. The power supply system determines that the power supply status of the power grid is ready for power supply, and the voltage threshold is a preset threshold for the first voltage of the power grid.

[0071] When the first voltage is less than the voltage threshold, it indicates that a problem occurs in the operation of the power grid, and the power supply system determines that the power supply status of the power grid is unavailable.

[0072] Exemplarily, the voltage threshold may be 300 volts.

[0073] The control method of the solid-state switching switch in this embodiment determines that the power supply status of the power grid is power-available when the first voltage is greater than or equal to the voltage threshold, and determines that the power supply status of the power grid is non-power-available when the first voltage is less than the voltage threshold, thereby ensuring the accuracy of the detection of the power supply status of the power grid and further ensuring the operational stability of the power supply system.

[0074] In one embodiment of the present application, as shown in FIG6 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0075] Step 602: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the grid;

[0076] Step 604: When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid;

[0077] Step 606 , detecting the battery power level. When the battery power level is less than a power threshold, charging the battery through the power grid and the energy storage converter.

[0078] In this embodiment, the power supply system detects the battery power level. When the battery power level is less than a power threshold, it indicates that the battery power level is low. The power supply system controls the power grid and the energy storage converter to charge the battery, wherein the power threshold is a preset threshold for the battery power level.

[0079] Exemplarily, the power threshold may be 50%.

[0080] The control method of the solid-state switching switch in this embodiment detects the battery power level. When the battery power level is less than the power threshold, the power grid and the energy storage converter are controlled to charge the battery, thereby ensuring sufficient battery power and thus ensuring the operational stability of the power supply system.

[0081] In one embodiment of the present application, as shown in FIG7 , a control method for a solid-state switch is proposed. The control method for the solid-state switch includes:

[0082] Step 702: When the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid;

[0083] Step 704: When the second voltage is equal to the first voltage and the second phase is equal to the first phase, stop the energy storage converter and supply power to the load through the power grid;

[0084] Step 706: Detect the battery power level. If the battery power level is less than a power threshold, convert the AC power output from the grid into DC power through the energy storage converter to connect the grid and the battery.

[0085] Step 708: Charge the battery through the power grid.

[0086] In this embodiment, the power supply system detects the battery power level. When the battery power level is less than a power threshold, it indicates that the battery power level is low. The power supply system converts the AC power output from the power grid into DC power through an energy storage inverter to connect the power grid and the battery, thereby controlling the power grid to charge the battery.

[0087] For example, when the battery power is greater than the power threshold, it indicates that the battery power is sufficient.

[0088] The control method of the solid-state switching switch in this embodiment detects the battery power level. When the battery power level is less than a power threshold, the AC power output by the power grid is converted into DC power through the energy storage converter to connect the power grid and the battery, thereby controlling the power grid to charge the battery, thereby ensuring sufficient battery power and thus ensuring the operational stability of the power supply system.

[0089] As shown in FIG8 , an embodiment of the present application provides a control device 800 for a solid-state switch. The control device 800 for a solid-state switch includes:

[0090] A control module 802 is configured to, when the load is powered by the energy storage converter and the battery and the power grid is in a power supply state, close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the grid;

[0091] The control module 802 is further configured to stop the energy storage converter and supply power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase.

[0092] In this embodiment, a control device 800 for a solid-state switching switch is provided. The solid-state switching switch is used to control a power supply system. The power supply system is a system for supplying power to a load. The power supply system includes a solid-state switching switch, an energy storage converter, a battery, and a power grid. The energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter, respectively. The solid-state switching switch is a switch for switching power supply between the power grid and the battery, and the energy storage converter is a device for converting current.

[0093] Exemplarily, the battery may be a DC energy storage battery, and the power grid may be an AC power grid.

[0094] When the load is powered by the energy storage converter and the battery, and the power supply status of the power grid is that it can supply power, it means that the power supply status of the power grid has been restored. The power supply system closes the solid-state switch and detects the first voltage and the first phase of the power grid. According to the first voltage and the first phase of the power grid, the second voltage and the second phase of the energy storage converter are adjusted. The power supply status of the power grid is the operating status of the power grid, the first voltage is the real-time voltage of the power grid, the first phase is the real-time phase of the power grid, the second voltage is the voltage value at both ends of the energy storage converter, and the second phase is the phase of the energy storage converter.

[0095] For example, when the power supply status of the power grid is unavailable, the power supply system disconnects the solid-state switch and supplies power to the load through the energy storage converter and the battery.

[0096] When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops operating the energy storage converter and supplies power to the load through the power grid.

[0097] It should be noted that after adjusting the second voltage and second phase of the energy storage converter to the first voltage and first phase of the grid, shutting down the energy storage converter can ensure stable operation of the power supply system and power supply safety for the load.

[0098] It should also be noted that the state switching time of the solid-state switch is short, which ensures the power switching speed of the power supply system. For example, the state switching time of the solid-state switch can be specifically 5ms to 10ms.

[0099] Exemplarily, as shown in FIG9 , the power supply system includes a solid-state switch, an energy storage converter, a battery, and a power grid, and the power supply system is used to supply power to a load.

[0100] For example, as shown in FIG10 , the power supply system includes two modes: grid power supply and energy storage power supply. When the power supply system uses the grid power supply mode to supply power to the load, the energy storage converter is controlled to be on standby to determine whether the grid is powered off. If the grid is not powered off, the energy storage converter is kept on standby. If the grid is powered off, all semiconductors of the solid-state switching switch are locked and the energy storage converter is started, and then the load is supplied with power by the energy storage mode. The power supply system supplies power through the energy storage converter to determine whether the grid is restored. If the grid is not restored, the energy storage converter is kept on supplying power. If the grid is restored, the energy storage converter is kept on supplying power. In the case of recovery, the voltage and phase of the energy storage inverter are adjusted, the voltage and phase of the energy storage inverter are detected, and the voltage and phase of the power grid are detected to determine whether the voltage and phase of the energy storage inverter are equal to the voltage and phase of the power grid. When the voltage and phase of the energy storage inverter are not equal to the voltage and phase of the power grid, the voltage and phase of the energy storage inverter are continued to be detected, and the voltage and phase of the power grid are continued to be detected. When the voltage and phase of the energy storage inverter are equal to the voltage and phase of the power grid, all semiconductors of the solid-state switching switch are triggered to turn on, the energy storage inverter is controlled to standby, and the load is powered by the power grid.

[0101] The control device 800 of the solid-state switching switch in this embodiment closes the solid-state switching switch and detects the first voltage and first phase of the power grid when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power-available. The second voltage and second phase of the energy storage converter are adjusted according to the first voltage and first phase of the power grid. When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the power supply system stops running the energy storage converter and supplies power to the load through the power grid, which greatly shortens the power switching time of the power supply system, improves the power switching speed of the power supply system, and ensures the synchronization and safety of the power supply system.

[0102] In the above embodiment, the control device 800 of the solid-state switch further includes:

[0103] The control module 802 is further configured to convert the DC power output by the battery into AC power through an energy storage converter to connect the battery and the load;

[0104] The control module 802 is further configured to supply power to the load via a battery.

[0105] The control device 800 of the solid-state switching switch in this embodiment starts the energy storage inverter, which converts the direct current output by the battery into alternating current through the energy storage inverter to connect the battery and the load, and then powers the load through the battery, thereby ensuring the operational stability of the power supply system. In the event of problems with the power grid, the power supply system is guaranteed to supply power to the load normally.

[0106] In any of the above embodiments, the control device 800 of the solid-state switch further includes:

[0107] The control module 802 is further configured to connect the grid and the load via the solid-state switch when the solid-state switch is in a closed state, so as to control the grid to supply power to the load.

[0108] The control device 800 of the solid-state switching switch in this embodiment connects the power grid and the load through the solid-state switching switch when the solid-state switching switch is in a closed state, and then controls the power grid to supply power to the load. The solid-state switching switch ensures the response speed of the power supply system and ensures the normal power supply of the power supply system to the load.

[0109] In any of the above embodiments, the control device 800 of the solid-state switch further includes:

[0110] The control module 802 is further configured to determine a power supply status of the power grid according to the first voltage of the power grid.

[0111] The control device 800 of the solid-state switching switch in this embodiment detects the first voltage of the power grid in real time, and determines the power supply status of the power grid based on the first voltage of the power grid, thereby ensuring the accuracy of the detection of the power supply status of the power grid and further ensuring the operating stability of the power supply system.

[0112] In any of the above embodiments, the control device 800 of the solid-state switch further includes:

[0113] The control module 802 is further configured to determine that the power supply state of the power grid is ready for power supply when the first voltage is greater than or equal to the voltage threshold;

[0114] The control module 802 is further configured to determine that the power supply status of the power grid is unavailable for power supply when the first voltage is less than a voltage threshold.

[0115] The control device 800 of the solid-state switching switch in this embodiment determines that the power supply status of the power grid is power-available when the first voltage is greater than or equal to the voltage threshold, and determines that the power supply status of the power grid is non-power-available when the first voltage is less than the voltage threshold, thereby ensuring the accuracy of the detection of the power supply status of the power grid and further ensuring the operational stability of the power supply system.

[0116] In any of the above embodiments, the control device 800 of the solid-state switch further includes:

[0117] The control module 802 is further configured to detect the battery power level, and when the battery power level is less than a power threshold, charge the battery through the power grid and the energy storage converter.

[0118] The control device 800 of the solid-state switching switch in this embodiment detects the battery power level. When the battery power level is less than the power threshold, it controls the power grid and the energy storage converter to charge the battery, thereby ensuring sufficient battery power and thus ensuring the operational stability of the power supply system.

[0119] In any of the above embodiments, the control device 800 of the solid-state switch further includes:

[0120] The control module 802 is further configured to convert the AC power outputted by the power grid into DC power via the energy storage converter, so as to connect the power grid and the battery;

[0121] The control module 802 is further configured to charge the battery through the power grid.

[0122] The control device 800 of the solid-state switching switch in this embodiment detects the battery power level. When the battery power level is less than the power threshold, the AC power output by the power grid is converted into DC power through the energy storage converter to connect the power grid and the battery, thereby controlling the power grid to charge the battery, ensuring sufficient battery power and thus ensuring the operational stability of the power supply system.

[0123] In one embodiment of the present application, as shown in FIG11 , a control device 1100 for a solid-state switch is provided. The control device 1100 includes a processor 1102 and a memory 1104. The memory 1104 stores a program or instruction. When executed by the processor 1102, the program or instruction implements the steps of the solid-state switch control method described in any of the aforementioned embodiments. Therefore, the control device 1100 for a solid-state switch has all the advantages of the solid-state switch control method described in any of the aforementioned embodiments, and no further details are given here.

[0124] In one embodiment of the present application, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, a control method for a solid-state switching switch as in any of the above-mentioned embodiments is implemented, thereby having all the beneficial technical effects of the control method for a solid-state switching switch in any of the above-mentioned embodiments.

[0125] The readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0126] It should be clarified that in the claims, specification and drawings of this application, the term "plurality" refers to two or more. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing this application and making the description process simpler, and is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limitations on this application. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood based on the specific circumstances of the above data.

[0127] In the claims, specification, and drawings of this application, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In the claims, specification, and drawings of this application, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0128] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A control method for a solid-state switch, wherein: The solid-state switching switch is used to control a power supply system, and the power supply system is used to supply power to a load. The power supply system includes the solid-state switching switch, an energy storage converter, a battery, and a power grid. The energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter, respectively. The control method of the solid-state switching switch includes: When the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power supplyable, closing the solid-state switch, and adjusting the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid; When the second voltage is equal to the first voltage and the second phase is equal to the first phase, the energy storage converter is stopped and the load is powered by the power grid.

2. The control method of the solid-state switch according to claim 1, wherein: The supplying power to the load by the energy storage converter and the battery specifically includes: The direct current output by the battery is converted into alternating current by the energy storage converter to connect the battery and the load; The load is powered by the battery.

3. The control method of the solid-state switch according to claim 1, wherein: The supplying power to the load through the power grid specifically includes: When the solid-state switch is in a closed state, the power grid and the load are connected through the solid-state switch to control the power grid to supply power to the load.

4. The control method of a solid-state switch according to any one of claims 1 to 3, wherein: The control method of the solid-state switch further includes: The power supply status of the power grid is determined according to the first voltage of the power grid.

5. The control method of the solid-state switch according to claim 4, wherein: The determining the power supply state of the power grid according to the first voltage of the power grid specifically includes: When the first voltage is greater than or equal to a voltage threshold, determining that the power supply state of the power grid is power supplyable; When the first voltage is less than the voltage threshold, it is determined that the power supply state of the power grid is unavailable for power supply.

6. The control method of a solid-state switch according to any one of claims 1 to 3, wherein: After the load is supplied with power by the power grid, the method further includes: The power level of the battery is detected, and when the power level of the battery is less than a power threshold, the battery is charged through the power grid and the energy storage converter.

7. The control method of the solid-state switch according to claim 6, wherein: The charging of the battery through the power grid and the energy storage converter specifically includes: The AC power outputted by the power grid is converted into DC power by the energy storage converter to connect the power grid and the battery; The battery is charged through the power grid.

8. A control device for a solid-state switch, wherein: The solid-state switching switch is used to control the power supply system, and the power supply system is used to supply power to the load. The power supply system includes the solid-state switching switch, an energy storage converter, a battery and a power grid. The energy storage converter is connected to the battery, the solid-state switching switch is connected to the power grid, the power grid is connected to the energy storage converter, and the load is connected to the solid-state switching switch and the energy storage converter respectively. The control device of the solid-state switching switch includes: A control module, configured to close the solid-state switch and adjust the second voltage and the second phase of the energy storage converter according to the first voltage and the first phase of the power grid when the load is powered by the energy storage converter and the battery and the power supply state of the power grid is power supplyable; The control module is further configured to stop the energy storage converter and supply power to the load through the power grid when the second voltage is equal to the first voltage and the second phase is equal to the first phase.

9. A control device for a solid-state switch, wherein: include: processor; A memory, wherein a program or instruction is stored in the memory, and the processor implements the steps of the control method of the solid-state switching switch according to any one of claims 1 to 7 when executing the program or instruction in the memory.

10. A readable storage medium, wherein: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the control method of the solid-state switching switch according to any one of claims 1 to 7 are implemented.

Images