Control method and system and electronic equipment

Abstract

The invention discloses a control method and system and electronic equipment, and relates to the technical field of renewable energy sources. The control method is applied to a control system comprising a power supply circuit with a polarization power supply function and an electrolytic bath, and comprises the following steps: when the power supply circuit detects an overflow signal corresponding to electrolyte filling of the electrolytic bath, controlling the polarization power supply function corresponding to the power supply circuit to be in a working mode to keep polarization current within a first preset duration, the control system is in a working state; when the electrolytic cell is in the state before shutdown, the polarization power supply function is controlled to be in the working mode, the polarization current is kept within the second preset duration, nitrogen is introduced into the electrolytic cell for emptying treatment, so that the control system is in the non-working state, timely commissioning of the polarization power supply can be achieved, and the service life of the polarization power supply is prolonged. Therefore, the switching efficiency between the polarization power supply and the main power supply is improved, and the safety and stability of the electrolytic cell are further improved.

Description

Technical Field

[0001] The present invention relates to the field of renewable energy technology, and in particular to a control method, system and electronic equipment. Background Art

[0002] With the rapid development of hydrogen production from renewable energy around the world, the application scenarios of frequent start and shutdown of electrolyzers for hydrogen production by electrolysis of water are gradually increasing. At the same time, the capacity of electrolyzer cells is getting larger and larger, and the working current of the electrolyzers is also getting larger and larger, which brings great challenges to the safe operation of the electrolyzers and the reliability of their entire life cycle.

[0003] Based on the product characteristics and working principle of the electrolytic water hydrogen production electrolyzer, a polarized power supply is needed to protect the ion membrane and electrodes in the electrolyzer. The main function of the polarized power supply is to promptly supply the DC power supply of the forward polarization current required by the electrolyzer when the electrolyzer suddenly loses power, so as to suppress the cathode from discharging outwards. While protecting the ion membrane, it also prevents the cathode coating of the electrolyzer from falling off, thereby avoiding the increase of the electrolyzer voltage, which will further cause the problem of accelerated aging of the electrolyzer and increased unit energy consumption. Therefore, the timely commissioning of the polarized power supply is particularly important.

[0004] With the large-scale and rapid development of hydrogen production from renewable energy, the number of application scenarios for frequent start and stop of electrolyzers has increased. At the same time, as the capacity of a single electrolyzer tends to be large, the operating current of the electrolyzer is getting larger and larger. The combination of these two factors has led to an increase in the risk of electrode plating shedding and diaphragm damage during the frequent start and stop of the electrolyzer. For the current renewable energy hydrogen production scenario, if you consider configuring a polarized power supply for the electrolyzer, you can set up a separate set of polarized power supply devices to match the main power supply (hydrogen production rectifier power supply). One of the problems it faces is particularly prominent:

[0005] The polarization power supply is used in conjunction with the main power supply (hydrogen production rectifier power supply). The polarization power supply needs to be quickly put into operation and quickly cut off under appropriate conditions. It is necessary to ensure that the main power supply works normally and that the polarization power supply can play its due function. The control logic of the cooperation between the two will be more complicated.

[0006] Therefore, a control method is urgently needed to realize the timely operation of the polarization power supply, so as to improve the switching efficiency between the polarization power supply and the main power supply, thereby improving the safety and stability of the electrolyzer.

[0007] Application Contents

[0008] The object of the present invention is to provide a control method, system and electronic equipment for improving the switching efficiency between the polarization power supply and the main power supply, thereby improving the safety and stability of the electrolytic cell.

[0009] In order to achieve the above-mentioned object, the present invention provides a control method in a first aspect, which is applied to a control system including a power supply circuit having a polarization power supply function and an electrolytic cell, and the method comprises:

[0010] When the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the polarization power function corresponding to the power circuit is controlled to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state;

[0011] When the electrolytic cell is in a state before parking, the polarization power supply function is controlled to maintain the polarization current within a second preset time period in a working mode, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0012] When the above technical solution is adopted, when the power supply circuit detects the overflow signal corresponding to the filling of the electrolytic cell, the polarization power supply function corresponding to the power supply circuit is controlled to maintain the polarization current within the first preset time in the working mode, so that the control system is in a working state; when the electrolytic cell is in a state before parking, the polarization power supply function is controlled to maintain the polarization current within the second preset time in the working mode, and nitrogen is introduced into the electrolytic cell for emptying treatment, so that the control system is in a non-working state, which can realize the timely commissioning of the polarization power supply, so as to improve the switching efficiency between the polarization power supply and the main power supply, and thereby improve the safety and stability of the electrolytic cell.

[0013] In an optional manner, when the electrolytic cell is in a working ready state and the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the polarization power function corresponding to the power circuit is controlled to be in a working mode and maintain a polarization current for a first preset time period, so that the control system is in a working state, including:

[0014] When the power circuit detects an overflow signal corresponding to the filling of the electrolytic cell, determining that the electrolytic cell is in a working ready state;

[0015] The polarization power function corresponding to the power circuit is controlled to be in working mode, and the polarization current is maintained within the first preset time period, so that the control system is in working state.

[0016] In an optional manner, when the electrolytic cell is in a state before being stopped, controlling the polarization power supply function to be in a working mode to maintain the polarization current for a second preset time period, and introducing nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state, includes:

[0017] When the electrolytic cell is in a shutdown preparation state, obtaining the working current of the electrolytic cell;

[0018] When the working current of the electrolytic cell drops to a preset working current value, the polarization power supply function is controlled to be in working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0019] In an optional manner, when the electrolytic cell is in a state before being stopped, controlling the polarization power supply function to be in a working mode to maintain the polarization current for a second preset time period, and introducing nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state, includes:

[0020] When the electrolytic cell is in an emergency shutdown state and the power supply circuit detects a shutdown signal, the polarization power supply function is controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0021] In an optional manner, the method further includes:

[0022] When the power circuit detects a discharge signal corresponding to the electrolytic cell, the polarization power function corresponding to the power circuit is controlled to switch out of the working mode.

[0023] In an optional manner, the first preset duration is greater than the second preset duration.

[0024] In a second aspect, the present invention provides a control system, comprising a power supply circuit having the function of a polarization power supply, an electrolytic cell and a control unit connected to each other;

[0025] When the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the control unit controls the polarization power function corresponding to the power circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state;

[0026] The control unit controls the polarization power supply function to maintain the polarization current within a second preset time period in the working mode when the electrolytic cell is in a pre-stop state, and introduces nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0027] In an optional manner, the control system further comprises: a transformer connected to the power supply circuit; the power supply circuit comprises a three-phase rectifier circuit and a DC step-down chopper circuit;

[0028] The three-phase input ends of the three-phase rectifier circuit are electrically connected to the three-phase voltage output ends of the secondary side of the transformer in a one-to-one correspondence, the output end of the three-phase rectifier circuit is electrically connected to the input end of the DC step-down chopper circuit, and the output end of the DC step-down chopper circuit is electrically connected to the anode of the electrolytic cell and the cathode of the electrolytic cell respectively;

[0029] The three-phase rectifier circuit is used to convert the three-phase alternating current output by the transformer into direct current under the drive of the pulse width modulation signal corresponding to the power polarization mode;

[0030] The DC step-down chopper subcircuit is used to provide a forward polarization current to the electrolytic cell after stepping down the DC power under the drive of the pulse width modulation signal corresponding to the power polarization mode.

[0031] In an optional manner, the first preset duration is greater than the second preset duration.

[0032] Compared with the prior art, the beneficial effects of the control system provided by the second aspect are the same as the beneficial effects of the control method described in the first aspect or any possible implementation of the first aspect, and are not elaborated here.

[0033] In a third aspect, the present invention further provides an electronic device comprising: one or more processors; and one or more machine-readable media having instructions stored thereon, which, when executed by the one or more processors, execute the control method described in any possible implementation of the first aspect.

[0034] The beneficial effects of the electronic device provided by the third aspect are the same as the beneficial effects of the control method described in the first aspect or any possible implementation of the first aspect, and are not elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 A schematic diagram of a control method provided in an embodiment of the present application is shown;

[0037] Figure 2 A schematic diagram of a flow chart of another control method provided in an embodiment of the present application is shown;

[0038] Figure 3 A schematic diagram of the structure of a control system provided by an embodiment of the present application is shown;

[0039] Figure 4A schematic diagram of the structure of a power supply circuit having a polarization power supply function provided in an embodiment of the present application is shown;

[0040] Figure 5 A schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of the structure of a chip provided in an embodiment of the present invention.

[0042] Reference numerals:

[0043] 301-power circuit, 302-electrolyzer,

[0044] 303-control unit, 304-transformer,

[0045] 3011-three-phase rectifier circuit, 3012-DC step-down chopper circuit,

[0046] 400-Electronic device, 410-Processor,

[0047] 440-communication line, 420-communication interface,

[0048] 430-memory, 4101-first processor,

[0049] 4102-second processor, 500-chip,

[0050] 540-bus system. DETAILED DESCRIPTION

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0054] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Figure 1 A flow chart of a control method provided in an embodiment of the present application is shown, which is applied to a control system including a power supply circuit having a polarization power supply function and an electrolytic cell, such as Figure 1 As shown, the method includes:

[0057] Step 101: When the power circuit detects an overflow signal corresponding to the filling of the electrolytic cell, the polarization power function corresponding to the power circuit is controlled to maintain the polarization current within a first preset time period in the working mode, so that the control system is in a working state.

[0058] In the present application, when the power supply circuit detects an overflow signal corresponding to the filling of the electrolytic cell, it is determined that the electrolytic cell is in a working ready state, the polarization power supply function corresponding to the power supply circuit is controlled to be in a working mode, and the polarization current is maintained within the first preset time period so that the control system is in a working state.

[0059] Step 102: When the electrolytic cell is in a state before being stopped, control the polarization power supply function to maintain the polarization current within a second preset time period in the working mode, and introduce nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0060] In the present application, when the electrolytic cell is in a shutdown preparation state, the working current of the electrolytic cell is obtained. When the working current of the electrolytic cell drops to a preset working current value, the polarization power supply function is controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0061] In the present application, when the electrolytic cell is in an emergency shutdown state and the power supply circuit detects a shutdown signal, the polarization power supply function is controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0062] In summary, the control method provided in the embodiment of the present application is applied to a control system including a power supply circuit and an electrolytic cell having both polarization power supply functions, and the method includes: when the power supply circuit detects an overflow signal corresponding to the filling of the electrolytic cell, controlling the polarization power supply function corresponding to the power supply circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state; when the electrolytic cell is in a state before parking, controlling the polarization power supply function to maintain the polarization current within a second preset time in the working mode, and introducing nitrogen into the electrolytic cell for emptying treatment, so that the control system is in a non-working state, which can realize timely commissioning of the polarization power supply, so as to improve the switching efficiency between the polarization power supply and the main power supply, thereby improving the safety and stability of the electrolytic cell.

[0063] Figure 2 A flow chart of another control method provided in an embodiment of the present application is shown, which is applied to a control system including a power supply circuit having a polarization power supply function and an electrolytic cell, such as Figure 2 As shown, the method includes:

[0064] Step 201: When the power supply circuit detects an overflow signal corresponding to the filling of the electrolytic cell, it is determined that the electrolytic cell is in a working ready state.

[0065] In the present application, when an overflow signal corresponding to the filling of the electrolytic cell is detected, it indicates that the electrolytic cell is in a working ready state.

[0066] Step 202: Control the polarization power function corresponding to the power circuit to be in working mode, and maintain the polarization current within the first preset time period, so that the control system is in working state.

[0067] In the present application, after determining that the electrolytic cell is in a working ready state, the polarization power supply function can be controlled to turn on, that is, the polarization power supply function is in working mode, and the polarization time is determined, and the polarization current is maintained within a first preset time period so that the system is in a working state.

[0068] Step 203: When the electrolytic cell is in a shutdown preparation state, obtain the working current of the electrolytic cell.

[0069] In the present application, when the electrolytic cell is in a planned shutdown, the electrolytic cell operating current can be obtained.

[0070] Step 204: When the working current of the electrolytic cell drops to a preset working current value, the polarization power supply function is controlled to be in working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0071] In the present application, further, after obtaining the working current of the electrolytic cell, the working current can be reduced to a preset working current value, wherein the preset working current value is a threshold value of the current value. When the current value is greater than the threshold value, the polarization power supply function is controlled to be in the working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0072] In the present application, the first preset duration is greater than the second preset duration. The embodiments of the present application do not limit the specific values ​​of the first preset duration and the second preset duration, and specific calibration adjustments can be made according to actual application scenarios.

[0073] Step 205: When the electrolytic cell is in an emergency shutdown state and the power supply circuit detects a shutdown signal, the polarization power supply function is controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0074] In the present application, the electrolytic cell may experience an emergency shutdown due to process interlocking. When the electrolytic cell is in an emergency shutdown state, the power supply circuit can detect a shutdown signal. After detecting the shutdown signal, the polarization power supply function can be controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen can be introduced into the electrolytic cell for evacuation treatment to put the control system in a non-working state.

[0075] Step 206: When the power circuit detects the drainage signal corresponding to the electrolytic cell, the polarization power function corresponding to the power circuit is controlled to switch out of the working mode.

[0076] In the present application, when the power supply circuit detects the drainage signal corresponding to the electrolytic cell, the polarization power supply function corresponding to the power supply circuit is controlled to cut out of the working mode, so that the polarization power supply can be put into operation in a timely manner.

[0077] In summary, the control method provided in the embodiment of the present application is applied to a control system including a power supply circuit and an electrolytic cell having both polarization power supply functions, and the method includes: when the power supply circuit detects an overflow signal corresponding to the filling of the electrolytic cell, controlling the polarization power supply function corresponding to the power supply circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state; when the electrolytic cell is in a state before parking, controlling the polarization power supply function to maintain the polarization current within a second preset time in the working mode, and introducing nitrogen into the electrolytic cell for emptying treatment, so that the control system is in a non-working state, which can realize timely commissioning of the polarization power supply, so as to improve the switching efficiency between the polarization power supply and the main power supply, thereby improving the safety and stability of the electrolytic cell.

[0078] Figure 3 A schematic diagram of the structure of a control system provided in an embodiment of the present application is shown. Figure 3 As shown, it includes a power supply circuit 301 having the function of a polarization power supply, an electrolytic cell 302 and a control unit 303 which are connected to each other;

[0079] When the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the control unit controls the polarization power function corresponding to the power circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state;

[0080] The control unit controls the polarization power supply function to maintain the polarization current within a second preset time period in the working mode when the electrolytic cell is in a pre-stop state, and introduces nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

[0081] Optionally, the control system further comprises: a transformer connected to the power supply circuit; the power supply circuit comprises a three-phase rectifier circuit and a DC step-down chopper circuit;

[0082] The three-phase input ends of the three-phase rectifier circuit are electrically connected to the three-phase voltage output ends of the secondary side of the transformer in a one-to-one correspondence, the output end of the three-phase rectifier circuit is electrically connected to the input end of the DC step-down chopper circuit, and the output end of the DC step-down chopper circuit is electrically connected to the anode of the electrolytic cell and the cathode of the electrolytic cell respectively;

[0083] The three-phase rectifier circuit is used to convert the three-phase alternating current output by the transformer into direct current under the drive of the pulse width modulation signal corresponding to the power polarization mode;

[0084] The DC step-down chopper subcircuit is used to provide a forward polarization current to the electrolytic cell after stepping down the DC power under the drive of the pulse width modulation signal corresponding to the power polarization mode.

[0085] Specifically, Figure 3 As shown, it includes a transformer 304, an electrolytic cell 302, and a power circuit 301 having a polarization power supply function, and the transformer 304, the power circuit 301, and the electrolytic cell 302 are electrically connected in sequence. Figure 4 As shown, the power supply circuit 301 provided by the present invention which also has the function of a polarization power supply integrates a rectifier power supply and a polarization power supply, which can not only realize the function of a rectifier power supply, but also have the function of a polarization power supply, thereby eliminating the need for electrical devices for matching connection and protection between the rectifier power supply and the polarization power supply, thereby reducing equipment costs and floor space.

[0086] Figure 4 A schematic diagram of a power supply circuit with a polarized power supply function provided in an embodiment of the present application is shown. The power supply circuit is applied to Figure 3 In the control system of or 4, the power supply circuit includes a three-phase rectifier circuit 3011 and a DC buck chopper circuit 3012. The three-phase input terminals of the three-phase rectifier circuit 3011 are respectively electrically connected to the three-phase voltage output terminals of the secondary side of the transformer 304, the output terminals of the three-phase rectifier circuit 3011 are electrically connected to the input terminals of the DC buck chopper circuit 3012, and the output terminals of the DC buck chopper circuit 3012 are respectively electrically connected to the anode of the electrolytic cell 302 and the cathode of the electrolytic cell 302. The three-phase rectifier circuit 3011 is used to convert the three-phase alternating current output by the transformer into direct current under the drive of the pulse width modulation signal corresponding to the power polarization mode. The DC buck chopper circuit 3012 is used to provide a forward polarization current to the electrolytic cell 302 after stepping down the direct current under the drive of the pulse width modulation signal corresponding to the power polarization mode.

[0087] In summary, the control system provided in the embodiment of the present application includes a power supply circuit, an electrolytic cell and a control unit that are interconnected and have a polarization power supply function; when the power supply circuit detects an overflow signal corresponding to the electrolytic cell filling, the control unit controls the polarization power supply function corresponding to the power supply circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state; when the electrolytic cell is in a pre-stop state, the control unit controls the polarization power supply function to maintain the polarization current within a second preset time in the working mode, and introduces nitrogen into the electrolytic cell for emptying treatment, so that the control system is in a non-working state, which can realize timely commissioning of the polarization power supply, so as to improve the switching efficiency between the polarization power supply and the main power supply, thereby improving the safety and stability of the electrolytic cell.

[0088] Figure 5 FIG. 1 is a schematic diagram showing the hardware structure of an electronic device provided by an embodiment of the present invention. Figure 5As shown, the electronic device 400 includes a processor 410 .

[0089] like Figure 5 As shown, the processor 410 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present invention.

[0090] like Figure 5 As shown, the electronic device 400 may further include a communication line 440. The communication line 440 may include a path for transmitting information between the above components.

[0091] Optional, such as Figure 5 As shown, the electronic device may further include a communication interface 420. There may be one or more communication interfaces 420. The communication interface 420 may use any transceiver or other device for communicating with other devices or communication networks.

[0092] Optional, such as Figure 5 As shown, the electronic device may further include a memory 430. The memory 430 is used to store computer-executable instructions for executing the solution of the present invention, and is controlled to execute by a processor. The processor is used to execute the computer-executable instructions stored in the memory, thereby implementing the method provided by the embodiment of the present invention.

[0093] like Figure 5 As shown, the memory 430 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 430 may exist independently and be connected to the processor 410 via a communication line 440. The memory 430 may also be integrated with the processor 410.

[0094] Optionally, the computer-executable instructions in the embodiment of the present invention may also be referred to as application program codes, which is not specifically limited in the embodiment of the present invention.

[0095] In a specific implementation, as an example, Figure 5 As shown, the processor 410 may include one or more CPUs, such as Figure 5 CPU0 and CPU1 in.

[0096] In a specific implementation, as an example, Figure 5 As shown, the terminal device may include multiple processors, such as Figure 5 The first processor 4101 and the second processor 4102 in the embodiment of the present invention are shown in FIG. Each of these processors can be a single-core processor or a multi-core processor.

[0097] Figure 6 Schematic diagram of the structure of the chip provided by the embodiment of the present invention. Figure 6 As shown, the chip 500 includes one or more (including two) processors 410 .

[0098] Optional, such as Figure 6 As shown, the chip also includes a communication interface 420 and a memory 430. The memory 430 may include a read-only memory and a random access memory, and provide operation instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory (NVRAM).

[0099] In some embodiments, Figure 6 As shown, the memory 430 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.

[0100] In the embodiment of the present invention, Figure 6 As shown, the corresponding operation is performed by calling the operation instruction stored in the memory (the operation instruction may be stored in the operating system).

[0101] like Figure 6 As shown, the processor 410 controls the processing operations of any one of the terminal devices, and the processor 410 may also be referred to as a central processing unit (CPU).

[0102] like Figure 6As shown, the memory 430 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory 430 may also include an NVRAM. For example, in an application, the memory, the communication interface, and the memory are coupled together through a bus system, wherein the bus system may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, in Figure 6 Various buses are labeled as bus system 540 .

[0103] like Figure 6 As shown, the method disclosed in the above embodiment of the present invention can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above processor may be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an ASIC, a field-programmable gate array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0104] On the one hand, a computer-readable storage medium is provided, in which instructions are stored. When the instructions are executed, the functions performed by the terminal device in the above embodiment are implemented.

[0105] On the one hand, a chip is provided, which is applied to a terminal device. The chip includes at least one processor and a communication interface. The communication interface is coupled to at least one processor, and the processor is used to run instructions to implement the functions performed by the control method in the above embodiment.

[0106] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present invention is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal, a user device or other programmable device. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a tape; it can also be an optical medium, such as a digital video disc (DVD); it can also be a semiconductor medium, such as a solid state drive (SSD).

[0107] Although the present invention is described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0108] Although the present invention has been described in conjunction with specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present invention. Accordingly, this specification and the accompanying drawings are merely exemplary illustrations of the present invention as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, the present invention is intended to include such modifications and variations if they fall within the scope of the claims of the present invention and their equivalents.

Claims

1. A control method, characterized in that: Applied to a control system including a power supply circuit having a polarization power supply function and an electrolytic cell, the method comprises: When the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the polarization power function corresponding to the power circuit is controlled to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state; When the electrolytic cell is in a state before parking, the polarization power supply function is controlled to maintain the polarization current within a second preset time period in a working mode, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

2. The control method according to claim 1, characterized in that: When the electrolytic cell is in a working preparation state and the power circuit detects an overflow signal corresponding to the electrolytic cell filling, controlling the polarization power function corresponding to the power circuit to be in a working mode and maintain the polarization current within a first preset time length, so that the control system is in a working state, includes: When the power circuit detects an overflow signal corresponding to the filling of the electrolytic cell, determining that the electrolytic cell is in a working ready state; The polarization power function corresponding to the power circuit is controlled to be in working mode, and the polarization current is maintained within the first preset time period, so that the control system is in working state.

3. The control method according to claim 1, characterized in that: The process of controlling the polarization power supply function to maintain the polarization current within a second preset time period in the working mode when the electrolytic cell is in a state before parking, and introducing nitrogen into the electrolytic cell for evacuation treatment so that the control system is in a non-working state includes: When the electrolytic cell is in a shutdown preparation state, obtaining the working current of the electrolytic cell; When the working current of the electrolytic cell drops to a preset working current value, the polarization power supply function is controlled to be in working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

4. The control method according to claim 1, characterized in that: The process of controlling the polarization power supply function to maintain the polarization current within a second preset time period in the working mode when the electrolytic cell is in a state before parking, and introducing nitrogen into the electrolytic cell for evacuation treatment so that the control system is in a non-working state includes: When the electrolytic cell is in an emergency shutdown state and the power supply circuit detects a shutdown signal, the polarization power supply function is controlled to be in a working mode to maintain the polarization current within the second preset time period, and nitrogen is introduced into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

5. The control method according to claim 1, characterized in that: The method further comprises: When the power circuit detects a discharge signal corresponding to the electrolytic cell, the polarization power function corresponding to the power circuit is controlled to switch out of the working mode.

6. The control method according to claim 1, characterized in that: The first preset time length is greater than the second preset time length.

7. A control system, characterized in that: It includes a power supply circuit, an electrolytic cell and a control unit which are interconnected and have the function of a polarization power supply; When the power circuit detects an overflow signal corresponding to the electrolytic cell filling, the control unit controls the polarization power function corresponding to the power circuit to maintain the polarization current within a first preset time in the working mode, so that the control system is in a working state; The control unit controls the polarization power supply function to maintain the polarization current within a second preset time period in the working mode when the electrolytic cell is in a pre-stop state, and introduces nitrogen into the electrolytic cell for evacuation treatment, so that the control system is in a non-working state.

8. The control system according to claim 7, characterized in that: The control system further comprises: a transformer connected to the power supply circuit; the power supply circuit comprises a three-phase rectifier circuit and a DC step-down chopper circuit; The three-phase input ends of the three-phase rectifier circuit are electrically connected to the three-phase voltage output ends of the secondary side of the transformer in a one-to-one correspondence, the output end of the three-phase rectifier circuit is electrically connected to the input end of the DC step-down chopper circuit, and the output end of the DC step-down chopper circuit is electrically connected to the anode of the electrolytic cell and the cathode of the electrolytic cell respectively; The three-phase rectifier circuit is used to convert the three-phase alternating current output by the transformer into direct current under the drive of the pulse width modulation signal corresponding to the power polarization mode; The DC step-down chopper subcircuit is used to provide a forward polarization current to the electrolytic cell after stepping down the DC power under the drive of the pulse width modulation signal corresponding to the power polarization mode.

9. The control system according to claim 7, characterized in that: The first preset time length is greater than the second preset time length.

10. An electronic device, characterized in that: include: one or more processors; and one or more machine-readable media having instructions stored thereon, which, when executed by the one or more processors, enable execution of the control method described in any one of claims 1-5.

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