Black start control method of light storage system, black start system and light storage system

Abstract

The invention discloses a black-start control method of an optical storage system, a black-start system and the optical storage system, and belongs to the technical field of optical storage systems. The black-start control method of the optical storage system is applied to the black-start system, the black-start system is used for being connected with the optical storage system, and the black-start system comprises at least one battery monomer; the method comprises the following steps: receiving a first input of a target control in the black-start system; receiving a black start trigger signal in response to the first input; and in response to the black start trigger signal, activating the optical storage system based on the electric signal of each battery cell. According to the black-start control method of the optical storage system, the use safety of the battery is effectively improved, and the service life of the battery is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of photovoltaic storage systems, and in particular to a black start control method for photovoltaic storage systems, a black start system, and a photovoltaic storage system. Background Art

[0002] The black start process of the photovoltaic storage system draws power from the battery and supplies it to the photovoltaic storage system to activate the photovoltaic storage system, that is, the black start is mainly triggered by a button to directly activate the auxiliary source; but in the case of a low battery, the black start will still be successfully started, which will cause irreversible damage to the battery. In the related art, by adding hardware protection for the total voltage undervoltage of the battery pack, the auxiliary source is allowed to work when the total voltage of the auxiliary source battery is within a safe range to activate the photovoltaic storage system. However, when the battery cells in the battery pack are at the low end, the voltages of the battery cells in the battery pack vary greatly. It is possible that the smallest battery cell has been low-powered, while the total voltage of the battery pack is still within the normal range, increasing the risk of low battery power and affecting the service life and safety of the battery pack. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a black start control method of a photovoltaic storage system, a black start system and a photovoltaic storage system, which effectively improve the safety of battery use and extend the service life of the battery.

[0004] In a first aspect, the present application provides a black start control method for a photovoltaic storage system, which is applied to a black start system, wherein the black start system is used to be connected to the photovoltaic storage system, and the black start system includes at least one battery cell; the method includes:

[0005] receiving a first input to a target control in the black start system;

[0006] In response to the first input, receiving a black start trigger signal;

[0007] In response to the black start trigger signal, the photovoltaic storage system is activated based on the electrical signal of each of the battery cells.

[0008] According to the black start control method of the photovoltaic storage system of the present application, by receiving a first input to a target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and further based on the electrical signal of each battery cell, the photovoltaic storage system is activated, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, improving the safety of battery use and extending the battery life.

[0009] According to the black start control method of the photovoltaic storage system of the present application, activating the photovoltaic storage system based on the electrical signal of each battery cell includes:

[0010] When the electrical signals of the battery cells are not less than the electrical signal threshold, the photovoltaic storage system is activated.

[0011] According to the black start control method of the photovoltaic storage system of the present application, after receiving the black start trigger signal in response to the first input, the method further includes:

[0012] In response to the black start trigger signal, acquiring an electrical signal of each of the battery cells;

[0013] When at least one of the electrical signals of the battery cells is smaller than an electrical signal threshold, the photovoltaic storage system is deactivated.

[0014] According to the black start control method of the photovoltaic storage system of the present application, in response to the black start trigger signal, based on the electrical signal of each battery cell, the photovoltaic storage system is activated, including:

[0015] When the duration of the black start trigger signal is within the target time range, the photovoltaic storage system is activated based on the electrical signal of each battery cell.

[0016] According to the black start control method of the photovoltaic storage system of the present application, when the duration of the black start trigger signal is within the target time range, the photovoltaic storage system is activated based on the electrical signal of each battery cell, including:

[0017] When the duration is not less than a minimum value corresponding to the target time range, acquiring an electrical signal of each of the battery cells;

[0018] The solar storage system is activated based on the electrical signal of each battery cell.

[0019] According to the black start control method of the photovoltaic storage system of the present application, after activating the photovoltaic storage system based on the electrical signal of each battery cell, the method further includes:

[0020] When the duration is greater than a maximum value corresponding to the target time range, the solar energy storage system is deactivated.

[0021] According to the black start control method of the photovoltaic storage system of the present application, the method further includes:

[0022] When the duration of the black start trigger signal is less than the minimum value of the target time range, the solar energy storage system is deactivated.

[0023] In a second aspect, the present application provides a black start control device for a photovoltaic storage system, which is applied to a black start system, wherein the black start system is used to be connected to the photovoltaic storage system, and the black start system includes at least one battery cell; the device includes:

[0024] A first processing module, configured to receive a first input to a target control in the black start system;

[0025] a second processing module, configured to receive a black start trigger signal in response to the first input;

[0026] The third processing module is used to activate the photovoltaic storage system based on the electrical signal of each battery cell in response to the black start trigger signal.

[0027] According to the black start control device of the photovoltaic storage system of the present application, by receiving a first input to the target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and the photovoltaic storage system is further activated based on the electrical signal of each battery cell, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, improving the safety of battery use and extending the battery life.

[0028] In a third aspect, the present application provides a black start system based on the black start control method of the photovoltaic storage system as described in the first aspect, comprising:

[0029] A battery pack, the battery pack comprising at least one battery cell;

[0030] a user input module, the user input module being configured to receive a first input from a user and generate a black start trigger signal in response to the first input;

[0031] a black start button detection module, the black start button detection module being connected to the user input module, and the black start button detection module generating a first control signal based on the duration of the black start trigger signal;

[0032] An electrical signal sampling module, the electrical signal sampling module is connected to the battery pack and the black start button detection module respectively, and the electrical signal sampling module is used to obtain an electrical signal of each of the battery cells, and generate a second control signal based on the electrical signal of each of the battery cells;

[0033] A control module, wherein the control module is connected to the electrical signal sampling module and the black start button detection module respectively, and the control module controls the solar storage system based on the first control signal and the second control signal.

[0034] In a fourth aspect, the present application provides a photovoltaic storage system, which performs a black start based on the black start control method of the photovoltaic storage system as described in the first aspect.

[0035] In a fifth aspect, the present application provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the black start control method of the photovoltaic storage system as described in the first aspect above is implemented.

[0036] In a sixth aspect, the present application provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the black start control method of the photovoltaic storage system as described in the first aspect above is implemented.

[0037] In a seventh aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the black start control method of the photovoltaic storage system as described in the first aspect above.

[0038] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

[0039] By receiving a first input to a target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and the photovoltaic storage system is further activated based on the electrical signals of each battery cell, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, thereby improving the safety of battery use and extending the battery life.

[0040] Furthermore, by judging the correlation between the duration of the black start trigger signal generated by the target control and the minimum value corresponding to the target time range, the duration of the black start trigger signal can be effectively limited, that is, by eliminating the jitter through the anti-false triggering circuit, reducing the occurrence of black starts due to false triggering, improving the safety of the black start process, and enhancing the stability of the black start process.

[0041] Furthermore, by comparing the duration with the maximum value corresponding to the target time range, when the duration is greater than the maximum value corresponding to the target time range, it is determined that the target control is stuck. When the target control is stuck, the photoelectric storage system is deactivated to reduce the target control sticking, thereby reducing the risk of battery depletion, improving the safety of battery use and extending the battery life.

[0042] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] 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:

[0044] Figure 1 This is one of the flow charts of the black start control method of the photovoltaic storage system provided in the embodiment of the present application;

[0045] Figure 2 is a schematic diagram of the structure of a black start system provided in an embodiment of the present application;

[0046] Figure 3 This is a second flow chart of a black start control method for a photovoltaic storage system provided in an embodiment of the present application;

[0047] Figure 4 This is the third flow chart of the black start control method of the photovoltaic storage system provided in the embodiment of the present application;

[0048] Figure 5 is a structural schematic diagram of a black start control device for a photovoltaic storage system provided in an embodiment of the present application;

[0049] Figure 6 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0051] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0052] In combination with the accompanying drawings, the black start control method of the photovoltaic storage system, the black start control device of the photovoltaic storage system, the black start system, the photovoltaic storage system, the electronic device and the readable storage medium provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0053] The black start control method of the optical storage system can be applied to a terminal, and can be specifically executed by hardware or software in the terminal.

[0054] The terminal includes but is not limited to portable communication devices such as mobile phones or tablet computers. It should also be understood that in some embodiments, the terminal may not be a portable communication device, but a desktop computer.

[0055] In the following various embodiments, a terminal including a display and a touch-sensitive surface is described. However, it should be understood that the terminal may include one or more other physical user interface devices such as a physical keyboard, a mouse and a joystick.

[0056] The black start control method of the photovoltaic storage system provided in the embodiment of the present application can be executed by the photovoltaic storage system, or by a black start control device of the photovoltaic storage system arranged on the photovoltaic storage system, or by a server electrically connected (wired or wirelessly connected) to the photovoltaic storage system, or by a user terminal communicatively connected to the photovoltaic storage system, including but not limited to mobile terminals and non-mobile terminals.

[0057] like Figure 1 As shown, the black start control method of the photovoltaic storage system includes: step 110, step 120 and step 130.

[0058] The black start control method of the photovoltaic storage system is applied to the black start system.

[0059] like Figure 2 As shown, the black start system is used to connect with the photovoltaic storage system.

[0060] The black start system includes at least one battery cell.

[0061] The black start system is used to perform a black start on the PV storage system.

[0062] Black start is the process of activating the photovoltaic storage system through external power supply and gradually resuming operation of the photovoltaic storage system when the power system is completely shut down due to faults or other reasons.

[0063] Step 110, receiving a first input to a target control in a black start system;

[0064] In this step, the target control is an interface or medium for providing user input, which may include a physical button, a virtual control displayed on the screen, a microphone, and the like.

[0065] like Figure 2 As shown, the target control may be a black start button.

[0066] The first input is used to input the user's black start control requirements for the photovoltaic storage system, and the control requirements include: the photovoltaic storage system needs to be black started and the photovoltaic storage system does not need to be black started.

[0067] The first input may be in at least one of the following ways:

[0068] First, the first input may be a touch operation, including but not limited to a click operation, a slide operation, and a press operation.

[0069] In this implementation, receiving the first input from the user may be receiving a touch operation of the user in the display area of ​​the terminal display screen.

[0070] In order to reduce the user error operation rate, the effective area of ​​the first input can be limited to a specific area, such as the upper middle area of ​​the black start interface; or when the black start interface is displayed, the target control is displayed on the current interface, and the first input can be achieved by touching the target control; or the first input can be set to a continuous multiple tapping operation on the display area within a target time interval.

[0071] Secondly, the first input may be a physical key input.

[0072] In this embodiment, a physical button corresponding to turning on or off black start is provided on the terminal body, and receiving the user's first input can be receiving the operation of the user pressing the corresponding physical button; the first input can also be a combined operation of pressing multiple physical buttons at the same time.

[0073] Third, the first input may be voice input.

[0074] In this implementation, the terminal may trigger the operation of starting a black start upon receiving a voice message such as "start black start".

[0075] In this implementation, when receiving a voice message such as "start black start", the terminal may trigger the black start and determine the black start start condition to perform the black start start operation.

[0076] Of course, in other embodiments, the first input may also be in other forms, including but not limited to character input, etc., which can be determined according to actual needs and is not limited in this embodiment of the present application.

[0077] Step 120, receiving a black start trigger signal in response to the first input;

[0078] In this embodiment, the black start trigger signal is a signal generated by the target control in response to a user input.

[0079] The black start trigger signal may include a digital signal or an analog signal, etc. In some embodiments, the black start trigger signal may be expressed as a level change.

[0080] When the black start signal switches from a low level to a high level, it can represent that the target control switches from an open state to a closed state. When the black start signal switches from a high level to a low level, it can represent that the target control switches from a closed state to an open state.

[0081] On the contrary, when the black start signal switches from a high level to a low level, it can represent that the target control switches from an open state to a closed state. When the black start signal switches from a low level to a high level, it can represent that the target control switches from a closed state to an open state.

[0082] As Figure 2 Taking the black start button shown in the figure as an example, when the black start button is pressed, the black start button generates a black start trigger signal. The black start trigger signal can be expressed as a level switching from a low level to a high level, that is, the black start button switches from an open state to a closed state.

[0083] The on / off state switching of the target control corresponding to the high and low level changes of the black start trigger signal can be determined based on actual conditions and is not limited in this application.

[0084] It is understandable that when pressing Figure 2 In the case of the black start button shown, the level of the black start trigger signal will be reversed based on the level in the initial state.

[0085] In the actual implementation process, when the black start button is pressed, the black start button is triggered, and the black start button triggering generates a black start trigger signal. The black start trigger signal can represent the flipping of the level to represent the triggering of the black start button.

[0086] Step 130 : In response to the black start trigger signal, the photovoltaic storage system is activated based on the electrical signals of each battery cell.

[0087] In this step, the electrical signal may include: voltage, current or power, etc. In the actual implementation process, when the electrical signal is current or power, the voltage may be calculated based on the current or power in combination with other parameters.

[0088] For example, when the electrical signal is current, voltage can be calculated based on the current and resistance.

[0089] For another example, when the electrical signal is power, the voltage can be calculated based on the power and the current.

[0090] In the actual implementation process, the electrical signal of each battery cell can be collected by setting up a voltage collection device or a current collection device, or the electrical signal of each battery cell can be directly retrieved from the battery management system, or the electrical signal of each battery cell can be obtained by any other feasible method.

[0091] In some embodiments, the electrical signal of each battery cell may be collected through a battery simulation front end.

[0092] In this embodiment, after pressing the black start trigger button, the electrical signal of each battery cell can be detected based on the mode of the battery simulation front end at the current acquisition moment, and based on the detection result of the battery simulation front end, it is determined whether the solar storage system can be activated.

[0093] The mode of the battery analog front end at the current acquisition moment may be a high power consumption mode or a low power consumption mode.

[0094] After pressing the black start trigger button, the battery simulation front end of the battery pack can be switched to a low power consumption mode. When the battery simulation front end is in the low power consumption mode, step 130 can be entered to execute further judgment logic, that is, the battery simulation front end can detect the electrical signal of each battery cell, and determine whether the photovoltaic storage system can be activated based on the detection result of the battery simulation front end.

[0095] It is understandable that putting the battery simulation front end in low power consumption mode and detecting the electrical signal of each battery cell can effectively save energy consumption and effectively extend the use time of the battery simulation front end.

[0096] During the actual execution process, after the target control receives the first input, in response to the first input, the target control generates a black start trigger signal, and at the same time, the battery simulation front end enters a low power consumption mode in response to the black start trigger signal. The battery simulation front end collects the electrical signals of each battery cell and determines whether to activate the photovoltaic storage system based on the actual conditions of the electrical signals of each battery cell.

[0097] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, the battery simulation front end is effectively awakened through the black start trigger signal, and the electrical signal of each battery cell is autonomously detected. Each battery cell can be detected without the need for additional hardware equipment, effectively reducing costs. In addition, the battery simulation front end can detect the electrical signal of each battery cell in low power consumption mode, further saving energy consumption.

[0098] During the research and development process, the inventor discovered that during the black start process of the photovoltaic storage system, the photovoltaic storage system is activated by drawing power from the battery. During this black start process, the power supply for all components of the photovoltaic storage system comes from a battery including multiple battery cells, which has a large power consumption, increases the risk of battery depletion, and causes irreversible damage to the battery.

[0099] In the related art, hardware protection for undervoltage of the total battery voltage is mainly added to allow the auxiliary source to work and activate the solar storage system when the total voltage of the battery drawn from the auxiliary source is within a safe range. However, when the battery cells in the battery are at the low end, the voltage differences of the battery cells are large. There is a situation where the smallest single cell has already been depleted while the total voltage is still within the normal range. The above hardware protection method can protect batteries with good battery cell consistency, but cannot effectively protect batteries with poor battery cell consistency in the discharge end battery, which increases the risk of battery pack depletion and affects the battery life and safety of use.

[0100] The present application effectively obtains the demand for black start of the photovoltaic storage system by receiving a first input to a target control in the black start system, receives a black start trigger signal generated by the target control in response to the first input, and performs a conditional judgment of the black start in response to the black start trigger signal, and determines the actual state of the electrical signal of each battery cell by judging the electrical signal of each battery cell, so as to activate the photovoltaic storage system based on the electrical signal of the battery cell, alleviate the risk of battery cell power shortage caused by insufficient electrical signals of the battery cell, and force power supply to the photovoltaic storage system, thereby improving the safety of the battery and extending the battery life.

[0101] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, by receiving a first input to the target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and further based on the electrical signal of each battery cell, the photovoltaic storage system is activated, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, thereby improving the safety of battery use and extending the battery life.

[0102] In some embodiments, step 130 may further include:

[0103] When the electrical signals of each battery cell are not less than the electrical signal threshold, the photovoltaic storage system is activated.

[0104] In this embodiment, the electrical signal threshold is a preset value for determining whether the battery cell is under-voltage.

[0105] When the electrical signal of the battery cell is not less than the electrical signal threshold, the battery cell is not under-voltage; when the electrical signal of the battery cell is less than the electrical signal threshold, the battery cell is under-voltage.

[0106] The electrical signal threshold can be determined based on actual conditions and is not limited in this application.

[0107] After acquiring the electrical signal of each battery cell through the battery simulation front end, the correlation between the electrical signal of each battery cell and the electrical signal threshold can be compared. When the electrical signals of all battery cells are not less than the electrical signal threshold, the photovoltaic storage system can be activated.

[0108] During the actual execution process, the battery simulation front end can be operated in a low-power mode by responding to a black start trigger signal. When the battery simulation front end is operating in a low-power mode, such as when the operating power of the battery simulation front end is within 30uA, the battery simulation front end can collect the electrical signals of each battery cell, and determine whether the electrical signals (such as voltage) of all battery cells exceed the safe range of a preset voltage protection value, that is, determine whether each electrical signal is undervoltage by comparing the correlation between the electrical signals of the battery cells and the electrical signal threshold.

[0109] The operating power corresponding to the low power mode can be determined based on actual conditions and is not limited in this application.

[0110] When the electrical signals of each battery cell are not less than the electrical signal threshold, a signal representing that the electrical signals of each battery cell are not less than the electrical signal threshold, i.e. a first control signal, can be generated to activate the photovoltaic storage system based on the first control signal.

[0111] like Figure 2 As shown, the power source or microcontroller unit (MUC) may also be activated based on a signal generated when the electrical signals of each battery cell are not less than an electrical signal threshold.

[0112] When the microcontroller unit is activated, the microcontroller unit can cancel the operation of the battery simulation front end to autonomously collect the electrical signals of each battery cell through communication, and the battery simulation front end can be controlled to work through the microcontroller unit.

[0113] The battery analog front end can be disconnected for short periods of time without activating the microcontroller unit.

[0114] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, the photovoltaic storage system is activated when it is determined that the electrical signal of each battery cell is not less than the electrical signal threshold, and the photovoltaic storage system is activated when the voltage of each battery cell is not undervoltage, thereby improving the safety and service life of the battery.

[0115] In some embodiments, after step 120, the method may further include:

[0116] In response to a black start trigger signal, acquiring an electrical signal of each battery cell;

[0117] When at least one of the electrical signals of the battery cells is smaller than the electrical signal threshold, the photovoltaic storage system is deactivated.

[0118] In this embodiment, after acquiring the electrical signal of each battery cell through the battery simulation front end, the correlation between the electrical signal of each battery cell and the electrical signal threshold can be compared. When one or more electrical signals among the electrical signals of all battery cells are less than the electrical signal threshold, the photovoltaic storage system is deactivated.

[0119] In the actual execution process, the battery simulation front end can be operated in low power mode by responding to the black start trigger signal, so that the battery simulation front end can collect the electrical signals of each battery cell and determine whether the electrical signals (such as voltage) of all battery cells exceed the safety range of the preset voltage protection value, that is, by comparing the correlation between the electrical signals of the battery cells and the electrical signal threshold, it is determined whether each electrical signal is undervoltage.

[0120] When one or more electrical signals of each battery cell are less than the electrical signal threshold, a signal representing that at least one electrical signal of each battery cell is less than the electrical signal threshold, i.e., a second control signal, can be generated to deactivate the photovoltaic storage system based on the second control signal.

[0121] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, by acquiring the electrical signals of each battery cell, when it is determined that one or more electrical signals among the electrical signals of each battery cell are less than the electrical signal threshold, the photovoltaic storage system is deactivated, thereby effectively alleviating the insufficient voltage of the battery cell, forcibly activating the photovoltaic storage system, and supplying power to the photovoltaic storage system, thereby reducing the risk of battery cell power shortage, improving the safety of battery use, and extending the battery service life.

[0122] In some embodiments, step 130 may further include:

[0123] When the duration of the black start trigger signal is within the target time range, the photovoltaic storage system is activated based on the electrical signals of each battery cell.

[0124] In this embodiment, the duration is the duration for which the level of the black start trigger signal is maintained unchanged after the level of the black start trigger signal is flipped.

[0125] The target time range is a preset time for determining whether the black start trigger signal is valid, so as to determine whether the current first input is the user's real control intention, so as to exclude control starts under non-real intentions such as adhesion, false touch or other.

[0126] The specific value of the target time range can be customized by the user or determined based on actual conditions, and this application does not limit it.

[0127] In the actual execution process, when the target control is triggered, the target control will generate a black start trigger signal, and the level of the black start trigger signal will be flipped. Based on the correlation between the duration of the level of the black start trigger signal after the level flip and the target time range, it can be determined whether the black start trigger signal is valid.

[0128] When the black start trigger signal is valid, the photovoltaic storage system is activated based on the electrical signals of each battery cell.

[0129] It should be noted that, when the duration is within the target time range, the black start trigger signal is valid.

[0130] According to the black start control method for the photovoltaic storage system provided in the embodiment of the present application, whether the black start trigger signal is valid is determined by the correlation between the duration of the black start trigger signal and the target time range. When the black start trigger signal is valid, the photovoltaic storage system is activated based on the electrical signal of each battery cell, thereby effectively alleviating the risk of battery depletion or loss caused by false triggering of the target control due to the triggering duration of the target control being too long or too short in actual application.

[0131] In some embodiments, when the duration of the black start trigger signal is within the target time range, activating the photovoltaic storage system based on the electrical signal of each battery cell may further include:

[0132] When the duration is not less than the minimum value corresponding to the target time range, obtaining the electrical signal of each battery cell;

[0133] Based on the electrical signals of each battery cell, the solar storage system is activated.

[0134] In this embodiment, the minimum value corresponding to the target time range is used to determine the shortest duration for effectively triggering the target control.

[0135] like Figure 2 As shown, taking the black start trigger signal generated by pressing the target control as a high level and the target time range as 3 seconds to 1 minute as an example, when the user presses the black start button and continues to press the black start button for 3 seconds, the black start trigger signal will flip from a low level to a high level, and the black start trigger signal will remain at a high level for 3 seconds.

[0136] In the actual implementation process, when the duration of the black start trigger signal is not less than the minimum value corresponding to the target time range, it indicates that the black start trigger signal is valid, and the solar energy storage system can be activated based on the black start trigger signal in the future.

[0137] like Figure 3As shown, when the target control is activated (i.e., pressed), it can be debounced through the anti-false trigger circuit, that is, the correlation between the duration and the minimum value corresponding to the target time range is judged, and when it is determined that the target control is not falsely triggered, the battery simulation front end can be activated to put the battery simulation front end in low power mode, so that the battery simulation front end samples each battery cell and obtains the electrical signal of each battery cell.

[0138] The electrical signal of each battery cell is compared with the electrical signal threshold to perform undervoltage fault diagnosis, and based on the diagnosis result, it is determined whether to activate the photovoltaic storage system.

[0139] like Figure 2 As shown, when the duration is not less than the minimum value corresponding to the target time range, the anti-key sticking circuit can output a control signal (first control signal) indicating that the target control is not accidentally touched. When it is determined that the electrical signals of each battery cell are not under-voltage, the battery simulation front end can output a control signal (second control signal) indicating that each battery cell is not under-voltage. The solar storage system can be activated based on the control signal (first control signal) indicating that the target control is not accidentally touched and the control signal (second control signal) indicating that each battery cell is not under-voltage, that is, when the target button is not accidentally triggered and each battery cell is not under-voltage.

[0140] It can be understood that, if the correlation between the duration and the minimum value corresponding to the target time range is different, the first control signal output by the anti-key sticking circuit will also be different.

[0141] The photovoltaic storage system can be deactivated when the duration is not less than the minimum value corresponding to the target time range and when it is determined that there are one or more undervoltages in the electrical signals of each battery cell. That is, when the target button is not falsely triggered, but there are one or more undervoltages in each battery cell, the conditions for activating the photovoltaic storage system are not met and the photovoltaic storage system is deactivated.

[0142] After deactivating the PV storage system, the battery simulation front end will shut down autonomously after a first period of time.

[0143] The specific value of the first duration can be customized by the user or determined based on actual conditions, and this application does not limit it.

[0144] According to the black start method for the photovoltaic storage system provided in the embodiment of the present application, the duration of the black start trigger signal is effectively limited by judging the correlation between the duration of the black start trigger signal generated by the target control and the minimum value corresponding to the target time range, that is, debouncing is performed through an anti-false triggering circuit to reduce the occurrence of black starts due to false triggering, thereby improving the safety of the black start process and enhancing the stability of the black start process.

[0145] In some embodiments, after activating the photovoltaic storage system based on the electrical signals of each battery cell, the method may further include:

[0146] When the duration is longer than the maximum value corresponding to the target time range, the solar energy storage system is deactivated.

[0147] In this embodiment, the maximum value corresponding to the target time range is the duration for determining whether the target control is stuck.

[0148] In the actual execution process, when the duration is greater than the maximum value corresponding to the target time range, it means that after the target control is pressed and released, the target control does not rebound, and the target control is always at a closed level, so that the duration of the black start trigger signal is greater than the maximum value corresponding to the target time range.

[0149] It should be noted that if the target control does not rebound, that is, it always maintains a closed level, the battery will continue to power the target control, and the battery may run out of power. It is necessary to deactivate the light storage system when the target control is in a pressed state for a long time.

[0150] In the actual implementation process, taking the duration of 4 seconds and the target time range of 3 seconds to 1 minute as an example, when the duration is 4 seconds and the electrical signals of each battery cell are not less than the electrical signal threshold, the photovoltaic storage system can be activated. After the photovoltaic storage system is activated, it will continue to determine whether the duration is too long.

[0151] like Figure 4 As shown, after the target control is activated and debounced by the anti-false trigger circuit, the anti-sticking circuit will further detect the level flip of the black start trigger signal generated by the target control. After the black start trigger signal is flipped from the open level to the closed level, a non-sticking control signal can be output, and the optical storage system is activated based on the non-sticking control signal.

[0152] After activating the solar storage system, determine whether the duration of the black start trigger signal is greater than the maximum value corresponding to the target time range. If the duration is greater than the maximum value corresponding to the target time range, output a adhesion control signal to deactivate the solar storage system.

[0153] It is understandable that, in the case of target control adhesion, when the duration of the black start trigger signal is between 3 seconds and 1 minute, the solar storage system will be briefly activated, and after 1 minute, that is, outside the target time range, the solar storage system will be deactivated.

[0154] It can be understood that, depending on the correlation between the duration and the maximum value corresponding to the target time range, the first control signal output by the anti-adhesion circuit will also be different.

[0155] In some embodiments, when it is determined that the target control is stuck, prompt information may be output.

[0156] In this embodiment, the prompt information is used to prompt the user that the target control is stuck.

[0157] In the actual execution process, users can handle the sticking of target controls in a timely manner based on the prompt information to reduce unnecessary losses.

[0158] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, by comparing the duration with the maximum value corresponding to the target time range, when the duration is greater than the maximum value corresponding to the target time range, it is determined that the target control is stuck. In the case of target control sticking, the photovoltaic storage system is deactivated to reduce the target control sticking, thereby reducing the risk of battery depletion, improving the safety of battery use and extending the battery life.

[0159] In some embodiments, the method may further include:

[0160] When the duration of the black start trigger signal is less than the minimum value of the target time range, the solar energy storage system is deactivated.

[0161] In this embodiment, when the duration of the black start trigger signal is less than the minimum value of the target time range, it indicates that the target control may be falsely triggered. In actual application scenarios, there is no need for a black start. At this time, there is no need to activate the photovoltaic storage system based on the black start trigger signal, that is, to deactivate the photovoltaic storage system.

[0162] According to the black start control method of the photovoltaic storage system provided in the embodiment of the present application, by determining that the duration of the black start trigger signal is less than the minimum value of the target time range, it is determined that the target control is falsely triggered, and the false triggering situation is quantitatively judged, thereby improving the scientificity and rationality of the false triggering judgment and improving the stability of the black start process.

[0163] The black start control method of the photovoltaic storage system provided in the embodiment of the present application can be executed by a black start control device of the photovoltaic storage system. In the embodiment of the present application, the black start control device of the photovoltaic storage system executing the black start control method of the photovoltaic storage system is taken as an example to illustrate the black start control device of the photovoltaic storage system provided in the embodiment of the present application.

[0164] The embodiment of the present application also provides a black start control device for a photovoltaic storage system.

[0165] The black start control device of the photovoltaic storage system is applied to the black start system.

[0166] The black start system is used to connect with the photovoltaic storage system.

[0167] The black start system includes at least one battery cell.

[0168] like Figure 5 As shown, the black start control device of the photovoltaic storage system includes: a first processing module 510 , a second processing module 520 and a third processing module 530 .

[0169] A first processing module 510 is used to receive a first input to a target control in a black start system;

[0170] A second processing module 520, configured to receive a black start trigger signal in response to the first input;

[0171] The third processing module 530 is used to activate the solar energy storage system based on the electrical signal of each battery cell in response to the black start trigger signal.

[0172] According to the black start control device of the photovoltaic storage system provided in the embodiment of the present application, by receiving a first input to the target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and the photovoltaic storage system is further activated based on the electrical signal of each battery cell, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, improving the safety of battery use and extending the battery life.

[0173] In some embodiments, the second processing module 520 may also be used to:

[0174] When the electrical signals of each battery cell are not less than the electrical signal threshold, the photovoltaic storage system is activated.

[0175] In some embodiments, the apparatus may further include a fourth processing module, configured to:

[0176] In response to a black start trigger signal, acquiring an electrical signal of each battery cell;

[0177] When at least one of the electrical signals of the battery cells is smaller than the electrical signal threshold, the photovoltaic storage system is deactivated.

[0178] In some embodiments, the second processing module 520 may also be used to:

[0179] When the duration of the black start trigger signal is within the target time range, the photovoltaic storage system is activated based on the electrical signals of each battery cell.

[0180] In some embodiments, the second processing module 520 may also be used to:

[0181] When the duration is not less than the minimum value corresponding to the target time range, obtaining the electrical signal of each battery cell;

[0182] Based on the electrical signals of each battery cell, the solar storage system is activated.

[0183] In some embodiments, the apparatus may further include a fifth processing module, configured to:

[0184] When the duration is longer than the maximum value corresponding to the target time range, the solar energy storage system is deactivated.

[0185] In some embodiments, the apparatus may further include a sixth processing module, configured to:

[0186] When the duration of the black start trigger signal is less than the minimum value of the target time range, the solar energy storage system is deactivated.

[0187] The black start control device of the optical storage system in the embodiment of the present application can be an optical storage system, or can be an electronic device connected to the optical storage system for communication, or can be a component in the optical storage system or the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or can be other devices other than the terminal. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc. It can also be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0188] The black start control device of the photovoltaic storage system in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an IOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0189] The black start control device of the photovoltaic storage system provided in the embodiment of the present application can achieve Figure 1 , Figure 3 and Figure 4 To avoid repetition, the various processes implemented by the method embodiment are not described here.

[0190] The embodiment of the present application also provides a black start system based on the black start control method of the photovoltaic storage system as described in any of the above embodiments.

[0191] like Figure 2 As shown, in some embodiments, the black start system includes: a battery pack, a user input module, a black start button detection module, an electrical signal sampling module and a control module.

[0192] In this embodiment, the battery pack includes at least one battery cell.

[0193] The user input module is used to receive a first input from a user and generate a black start trigger signal in response to the first input.

[0194] The black start button detection module is connected to the user input module.

[0195] The black start button detection module generates a first control signal based on the duration of the black start trigger signal.

[0196] The first control signal includes: a false trigger control signal, a non-false trigger control signal, a sticking control signal, and a non-sticking control signal.

[0197] The false trigger control signal is a first control signal output when the duration of the black start trigger signal is less than the minimum value corresponding to the target time range.

[0198] The non-false trigger control signal is a first control signal output when the duration of the black start trigger signal is not less than the minimum value corresponding to the target time range.

[0199] The adhesion control signal is a first control signal output when the duration of the black start trigger signal is greater than the maximum value corresponding to the target time range.

[0200] The non-stick control signal is a first control signal output when the duration of the black start trigger signal is less than or equal to the maximum value corresponding to the target time range.

[0201] The electrical signal sampling module is connected to the battery pack and the black start button detection module respectively.

[0202] The electrical signal sampling module is used to obtain the electrical signal of each battery cell and generate a second control signal based on the electrical signal of each battery cell.

[0203] The second control signal includes an undervoltage signal and a non-undervoltage signal.

[0204] The undervoltage signal is a second control signal output when one or more electrical signals in each battery cell are smaller than an electrical signal threshold.

[0205] The non-undervoltage signal is a second control signal output when the electrical signals of each battery cell are not less than the electrical signal threshold.

[0206] The control module is connected to the electric signal sampling module and the black start button detection module respectively.

[0207] The control module controls the optical storage system based on the first control signal and the second control signal.

[0208] Continue to refer Figure 2 Based on the first control signal and the second control signal, an enable signal can be generated through a logic circuit.

[0209] The enable signal can be used to control the optical storage system.

[0210] The enable signal includes: a valid enable signal and an invalid enable signal. For example, when the first control signal is a non-false trigger control signal and the second control signal is a non-undervoltage signal, a valid enable signal will be generated through a logic circuit.

[0211] A valid enable signal can be used to activate the optical storage as required.

[0212] For another example, when the first control signal is a sticky control signal and the second control signal is a non-undervoltage signal, an invalid enable signal is generated through a logic circuit to deactivate the optical storage system.

[0213] It can be understood that deactivating the photovoltaic storage system includes making the photovoltaic storage system remain inactive or changing the photovoltaic storage system from active to inactive.

[0214] According to the black start system provided in the embodiment of the present application, by receiving a first input to a target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and the photovoltaic storage system is further activated based on the electrical signals of each battery cell, thereby effectively reducing the risk of performing a black start to supply power to the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power in the battery cells, improving the safety of battery use and extending the battery life.

[0215] The embodiment of the present application also provides a solar storage system.

[0216] In some embodiments, the photovoltaic storage system performs a black start based on the black start control method of the photovoltaic storage system as described in any of the above embodiments.

[0217] In this embodiment, the photovoltaic storage system includes a photovoltaic system and an energy storage system.

[0218] The photovoltaic storage system is connected to the black start system.

[0219] The solar energy storage system is controlled by a black start system.

[0220] According to the photovoltaic storage system provided in the embodiment of the present application, by receiving a first input to a target control in the black start system and responding to the first input, the black start requirement for the photovoltaic storage system is determined, and the photovoltaic storage system is further activated based on the electrical signal of each battery cell, thereby effectively reducing the risk of performing a black start to power the photovoltaic storage system when the battery cells are low on power, thereby increasing the risk of further low on power of the battery cells, improving the safety of battery use and extending the battery life.

[0221] In some embodiments, Figure 6 As shown, an embodiment of the present application also provides an electronic device 600, including a processor 601, a memory 602, and a computer program stored in the memory 602 and executable on the processor 601. When the program is executed by the processor 601, each process of the black start control method embodiment of the above-mentioned photovoltaic storage system is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0222] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0223] An embodiment of the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned black start control method embodiment of the optical storage system are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0224] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0225] An embodiment of the present application also provides a computer program product, including a computer program, which implements the black start control method of the photovoltaic storage system when executed by a processor.

[0226] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0227] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned black start control method embodiment of the photovoltaic storage system, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0228] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0229] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0230] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the relevant technology, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0231] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0232] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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 the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0233] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A black start control method for a photovoltaic storage system, characterized in that: Applied to a black start system, the black start system is used to connect to the photovoltaic storage system, and the black start system includes at least one battery cell; the method includes: receiving a first input to a target control in the black start system; In response to the first input, receiving a black start trigger signal; In response to the black start trigger signal, the photovoltaic storage system is activated based on the electrical signal of each of the battery cells.

2. The black start control method of the photovoltaic storage system according to claim 1, characterized in that: The activating the photovoltaic storage system based on the electrical signal of each battery cell comprises: When the electrical signals of the battery cells are not less than the electrical signal threshold, the photovoltaic storage system is activated.

3. The black start control method of the photovoltaic storage system according to claim 1, characterized in that: After receiving a black start trigger signal in response to the first input, the method further includes: In response to the black start trigger signal, acquiring an electrical signal of each of the battery cells; When at least one of the electrical signals of the battery cells is smaller than an electrical signal threshold, the photovoltaic storage system is deactivated.

4. The black start control method of a photovoltaic storage system according to any one of claims 1 to 3, characterized in that: The method of activating the photovoltaic storage system in response to the black start trigger signal based on the electrical signal of each battery cell comprises: When the duration of the black start trigger signal is within the target time range, the photovoltaic storage system is activated based on the electrical signal of each battery cell.

5. The black start control method of the photovoltaic storage system according to claim 4, characterized in that: When the duration of the black start trigger signal is within a target time range, activating the photovoltaic storage system based on the electrical signal of each battery cell includes: When the duration is not less than a minimum value corresponding to the target time range, acquiring an electrical signal of each of the battery cells; The solar storage system is activated based on the electrical signal of each battery cell.

6. The black start control method of the photovoltaic storage system according to claim 5, characterized in that: After activating the photovoltaic storage system based on the electrical signal of each battery cell, the method further includes: When the duration is greater than a maximum value corresponding to the target time range, the solar energy storage system is deactivated.

7. The black start control method of a photovoltaic storage system according to any one of claims 1 to 3, characterized in that: The method further comprises: When the duration of the black start trigger signal is less than the minimum value of the target time range, the solar energy storage system is deactivated.

8. A black start control device for a photovoltaic storage system, characterized in that: Applied to a black start system, the black start system is used to connect with the photovoltaic storage system, and the black start system includes at least one battery cell; the device includes: A first processing module, configured to receive a first input to a target control in the black start system; a second processing module, configured to receive a black start trigger signal in response to the first input; The third processing module is used to activate the photovoltaic storage system based on the electrical signal of each battery cell in response to the black start trigger signal.

9. A black start system based on the black start control method of a photovoltaic storage system according to any one of claims 1 to 7, characterized in that: include: A battery pack, the battery pack comprising at least one battery cell; a user input module, the user input module being configured to receive a first input from a user and generate a black start trigger signal in response to the first input; a black start button detection module, the black start button detection module being connected to the user input module, and the black start button detection module generating a first control signal based on the duration of the black start trigger signal; An electrical signal sampling module, the electrical signal sampling module is connected to the battery pack and the black start button detection module respectively, and the electrical signal sampling module is used to obtain an electrical signal of each of the battery cells, and generate a second control signal based on the electrical signal of each of the battery cells; A control module, wherein the control module is connected to the electrical signal sampling module and the black start button detection module respectively, and the control module controls the optical storage system based on the first control signal and the second control signal.

10. A solar energy storage system, characterized in that: The photovoltaic storage system performs a black start based on the black start control method for the photovoltaic storage system according to any one of claims 1 to 7.

11. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the black start control method of the photovoltaic storage system as described in any one of claims 1-7 is implemented.

12. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the black start control method of the photovoltaic storage system as described in any one of claims 1 to 7 is implemented.

13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, a black start control method for a photovoltaic storage system as described in any one of claims 1 to 7 is implemented.

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