Photovoltaic tracking bracket system control method, device, equipment and storage medium

Abstract

The present invention discloses a control method, device, equipment, and computer-readable storage medium for a photovoltaic power generation tracking bracket system. The method includes: detecting whether the tracking bracket system's power supply battery is in a preset low-battery state; if the power supply battery is detected to be in the preset low-battery state, detecting whether the photovoltaic module is currently in a preset light-deficient environment; if the photovoltaic module is detected to be in the preset light-deficient environment, maintaining the tracking bracket system in a stopped state, or controlling the tracking bracket system to switch from a tracking state to a stopped state, wherein in the stopped state, the photovoltaic module is in a flat position, and the tracking bracket system is configured to adjust the angle of the photovoltaic module to track the direction of sunlight in the tracking state. The present invention reduces the risk of photovoltaic module failure due to low battery in the tracking bracket system's backup battery.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power stations, and in particular to a control method, device, equipment and computer-readable storage medium for a photovoltaic power generation tracking bracket system. Background Art

[0002] Currently, the photovoltaic tracker system on the market consists of a control unit (TCU), a motor actuator, and other components. The TCU integrates a backup battery, a motor drive circuit, and an angle sensor. The motor drive circuit drives the motor actuator, while the angle sensor provides feedback on the tracker's actual angle. The TCU's internal program calculates the tracker's optimal target angle in real time based on information such as longitude and latitude, date, and time. When the difference between the actual angle and the optimal target angle exceeds the set start angle, the tracker's motor actuator is activated. When the difference between the actual angle and the optimal target angle is less than the stop angle, the motor actuator is deactivated, allowing the photovoltaic module to follow the sun. Tracker systems typically use string power, drawing power from the photovoltaic modules. To prevent the tracker system from malfunctioning at night or during continuous rainy weather, a backup battery, typically a lithium battery, is used. Currently, low backup battery charge can easily cause the tracker system to malfunction, potentially leading to photovoltaic module failure. Summary of the Invention

[0003] The main purpose of the present invention is to provide a photovoltaic power generation tracking bracket system control method, device, equipment and computer-readable storage medium, aiming to propose a photovoltaic power generation tracking bracket system control scheme to reduce the risk of photovoltaic module failure due to low backup battery power of the tracking bracket system.

[0004] To achieve the above object, the present invention provides a photovoltaic tracking bracket system control method, the photovoltaic tracking bracket system control method comprising the following steps:

[0005] Detecting whether the power supply battery of the tracking bracket system is in a preset low power state;

[0006] If it is detected that the power supply battery is in the preset low power state, detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment;

[0007] If it is detected that the photovoltaic component is currently in the insufficient light energy environment, the tracking bracket system is maintained in a stopped state, or the tracking bracket system is controlled to switch from the tracking state to the stopped state, wherein the photovoltaic component is in a flat posture in the stopped state, and the tracking bracket system is used to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

[0008] Optionally, the step of detecting whether the power supply battery of the tracking bracket system is in a preset low power state includes:

[0009] Detecting whether the power level of the power supply battery of the tracking bracket system is less than a preset power threshold, wherein the preset power threshold is the minimum power level required to support the tracking bracket system to adjust the photovoltaic module from the maximum tilt angle to a flat posture;

[0010] If it is detected that the power level of the power supply battery is less than the preset current threshold value for a continuous preset period of time, it is determined that the power supply battery is in the preset low power state.

[0011] Optionally, the step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0012] Obtaining the sunrise time of the photovoltaic module at its geographical location on that day;

[0013] Detecting whether the current time is within a first preset time period from the sunrise time;

[0014] If the current moment is within the first preset time period from the sunrise moment, it is determined that the photovoltaic component is currently in the light energy insufficient environment.

[0015] Optionally, the photovoltaic tracking bracket system control method further includes:

[0016] Before the sunrise time, controlling the tracking support system to maintain the stopped operation state;

[0017] After the sunrise time is reached, the step of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state is performed.

[0018] Optionally, the step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0019] Obtaining the sunset time of the photovoltaic module's geographical location on the current day;

[0020] detecting whether the current time is within a second preset time period before the sunset time;

[0021] If the current moment is within the second preset time period before the sunset moment, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0022] Optionally, the photovoltaic tracking bracket system control method further includes:

[0023] Before the sunset time, performing the step of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state;

[0024] After reaching the sunset time, the tracking support system is controlled to maintain the stopped operation state.

[0025] Optionally, the step of obtaining the sunset time of the geographical location of the photovoltaic assembly on the current day includes:

[0026] Obtaining location information of the photovoltaic module;

[0027] The sunset time of the day is calculated according to the position information.

[0028] Optionally, the step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0029] Obtaining the current inverter power value of the photovoltaic module;

[0030] Detecting whether the inverter power value is less than a preset power threshold;

[0031] If the inverter power value is less than the preset power threshold, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0032] Optionally, after the step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment, the method further includes:

[0033] If it is detected that the photovoltaic assembly is not currently in the insufficient light energy environment, the tracking state of the tracking bracket system is maintained, or the tracking bracket system is controlled to switch from the stopped operation state to the tracking state.

[0034] To achieve the above-mentioned object, the present invention further provides a photovoltaic tracking bracket system control device. The photovoltaic tracking bracket system control device comprises:

[0035] A first detection module is used to detect whether the power supply battery of the tracking bracket system is in a preset low power state;

[0036] A second detection module is configured to detect whether the photovoltaic assembly is currently in a preset light energy insufficient environment if it is detected that the power supply battery is in the preset low power state;

[0037] A control module is configured to maintain the tracking bracket system in a stopped state, or to control the tracking bracket system to switch from a tracking state to the stopped state, if it is detected that the photovoltaic component is currently in an environment with insufficient light energy, wherein the photovoltaic component is in a flat position in the stopped state, and the tracking bracket system is configured to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

[0038] To achieve the above-mentioned purpose, the present invention also provides a photovoltaic power generation tracking bracket system control device, which includes: a memory, a processor, and a photovoltaic power generation tracking bracket system control program stored in the memory and executable on the processor. When the photovoltaic power generation tracking bracket system control program is executed by the processor, the steps of the photovoltaic power generation tracking bracket system control method described above are implemented.

[0039] In addition, to achieve the above-mentioned purpose, the present invention also proposes a computer-readable storage medium, on which a photovoltaic power generation tracking bracket system control program is stored. When the photovoltaic power generation tracking bracket system control program is executed by a processor, the steps of the photovoltaic power generation tracking bracket system control method as described above are implemented.

[0040] In an embodiment of the present invention, by detecting the power supply battery of the tracking bracket system, when it is determined that the power supply battery is in a preset low-power state and the photovoltaic module is detected to be in a preset light energy insufficient environment, the tracking bracket system is kept in a stopped state, or the tracking bracket system is controlled to switch from the tracking state to the stopped state, so that the photovoltaic module remains in a flat posture or switches to a flat posture, avoiding the situation where the photovoltaic module is not flat when the tracking bracket system cannot operate due to insufficient power supply, thereby reducing the risk of photovoltaic module failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic diagram of the hardware operating environment involved in an embodiment of the present invention;

[0042] Figure 2 This is a flow chart of a first embodiment of a control method for a photovoltaic tracking bracket system according to the present invention;

[0043] Figure 3 This is a functional module diagram of a preferred embodiment of the photovoltaic tracking bracket system control device of the present invention.

[0044] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0045] 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.

[0046] like Figure 1 As shown, Figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0047] It should be noted that the photovoltaic power generation tracking bracket system control device in the embodiment of the present invention can be a smart phone, a personal computer, a server and other devices, and no specific limitation is made here.

[0048] like Figure 1 As shown, the photovoltaic power generation tracking bracket system control device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0049] Those skilled in the art will understand that Figure 1 The device structure shown in the figure does not constitute a limitation on the control device of the photovoltaic tracking bracket system, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0050] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a photovoltaic tracking bracket system control program. The operating system is a program that manages and controls the hardware and software resources of the device and supports the operation of the photovoltaic tracking bracket system control program and other software or programs. Figure 1 In the device shown, the user interface 1003 is mainly used to communicate data with the client; the network interface 1004 is mainly used to establish a communication connection with the server; and the processor 1001 can be used to call the photovoltaic tracking bracket system control program stored in the memory 1005 and perform the following operations:

[0051] Detecting whether the power supply battery of the tracking bracket system is in a preset low power state;

[0052] If it is detected that the power supply battery is in the preset low power state, detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment;

[0053] If it is detected that the photovoltaic component is currently in the insufficient light energy environment, the tracking bracket system is maintained in a stopped state, or the tracking bracket system is controlled to switch from the tracking state to the stopped state, wherein the photovoltaic component is in a flat posture in the stopped state, and the tracking bracket system is used to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

[0054] In one feasible implementation, the operation of detecting whether the power supply battery of the tracking bracket system is in a preset low power state includes:

[0055] Detecting whether the power level of the power supply battery of the tracking bracket system is less than a preset power threshold, wherein the preset power threshold is the minimum power level required to support the tracking bracket system to adjust the photovoltaic module from the maximum tilt angle to a flat posture;

[0056] If it is detected that the power level of the power supply battery is less than the preset current threshold value for a continuous preset period of time, it is determined that the power supply battery is in the preset low power state.

[0057] In one feasible implementation, the operation of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0058] Obtaining the sunrise time of the photovoltaic module at its geographical location on that day;

[0059] Detecting whether the current time is within a first preset time period from the sunrise time;

[0060] If the current moment is within the first preset time period from the sunrise moment, it is determined that the photovoltaic component is currently in the light energy insufficient environment.

[0061] In one feasible implementation, the photovoltaic tracking bracket system control method further includes:

[0062] Before the sunrise time, controlling the tracking support system to maintain the stopped operation state;

[0063] After the sunrise time is reached, the operation of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state is performed.

[0064] In one feasible implementation, the operation of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0065] Obtaining the sunset time of the photovoltaic module's geographical location on the current day;

[0066] detecting whether the current time is within a second preset time period before the sunset time;

[0067] If the current moment is within the second preset time period before the sunset moment, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0068] In one feasible implementation, the processor 1001 may also be configured to call a photovoltaic tracking bracket system control program stored in the memory 1005 to perform the following operations:

[0069] Before the sunset time, performing the operation of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state;

[0070] After reaching the sunset time, the tracking support system is controlled to maintain the stopped operation state.

[0071] In one feasible implementation, the operation of obtaining the geographical location of the photovoltaic assembly at the sunset time of the day includes:

[0072] Obtaining location information of the photovoltaic module;

[0073] The sunset time of the day is calculated according to the position information.

[0074] In one feasible implementation, the operation of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes:

[0075] Obtaining the current inverter power value of the photovoltaic module;

[0076] Detecting whether the inverter power value is less than a preset power threshold;

[0077] If the inverter power value is less than the preset power threshold, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0078] In one feasible embodiment, after the operation of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment, the processor 1001 may also be used to call the photovoltaic power generation tracking bracket system control program stored in the memory 1005 to perform the following operations:

[0079] If it is detected that the photovoltaic assembly is not currently in the insufficient light energy environment, the tracking state of the tracking bracket system is maintained, or the tracking bracket system is controlled to switch from the stopped operation state to the tracking state.

[0080] Based on the above structure, various embodiments of a photovoltaic tracking bracket system control method are proposed.

[0081] Reference Figure 2 , Figure 2 This is a flow chart of the first embodiment of the photovoltaic tracking bracket system control method of the present invention.

[0082] The embodiment of the present invention provides an embodiment of a photovoltaic power generation tracking bracket system control method. It should be noted that although a logical order is shown in the flowchart, in some cases, the steps shown or described can be performed in a different order than here. In this embodiment, the execution subject of the photovoltaic power generation tracking bracket system control method can be a photovoltaic power generation tracking bracket system, or it can also be other equipment. This is not limited in this embodiment. For the sake of ease of description, the following description of each embodiment is omitted. In this embodiment, the photovoltaic power generation tracking bracket system control method includes:

[0083] Step S10, detecting whether the power supply battery of the tracking bracket system is in a preset low power state;

[0084] The tracking bracket system's power supply battery is a backup battery. A preset low-battery state indicates a low battery level. In this embodiment, the specific detection rules for the preset low-battery state are not limited and can be pre-set as needed. In specific implementations, a detection rule can be set such that, when the preset low-battery state is detected according to the detection rule, the battery power level is insufficient to support the tracking bracket system in adjusting the photovoltaic module from its maximum tilt angle to a flat position. The maximum tilt angle may refer to the angle between the plane where the photovoltaic module resides and the horizontal plane. For example, in one feasible embodiment, a voltage-current meter can be set in advance, in which current thresholds corresponding to different voltage values ​​are set, indicating that when the output voltage value of the power supply battery is certain, when the output current value is less than the current threshold corresponding to the output voltage value, the power supply battery will not be sufficient to support the tracking bracket system to adjust the photovoltaic component from the maximum tilt angle to a flat posture. The voltage-current meter can be determined in advance through experiments; when detecting whether the power supply battery is in a preset low-power state, the output voltage value and output current value of the power supply battery can be obtained, compared with the voltage-current meter, and the output current threshold corresponding to the output voltage value is found. The output current value is compared with the output current threshold. If the output current value is less than the output current threshold, it is determined that the power supply battery is in a preset low-power state, or if the output current values ​​of the power supply battery continuously obtained over a period of time are all less than the corresponding output current threshold, it is determined that the power supply battery is in a preset low-power state.

[0085] In this embodiment, the triggering conditions for detecting whether the power supply battery is in a preset low power state are not limited. For example, it can be automatically triggered once every period of time, or it can be triggered once when receiving an instruction sent by other systems.

[0086] In one feasible implementation, step S10 includes:

[0087] Step S101, detecting whether the power level of the power supply battery of the tracking bracket system is less than a preset power threshold, wherein the preset power threshold is the minimum power level required to support the tracking bracket system to adjust the photovoltaic module from the maximum tilt angle to a flat position;

[0088] Step S102 : If it is detected that the power level of the power supply battery is less than the preset current threshold value for a continuous preset time period, it is determined that the power supply battery is in the preset low power state.

[0089] The preset power threshold can be determined in advance through experiments, and the preset duration can be set as needed, and is not limited in this embodiment. By detecting that the current of the power supply battery is less than the preset current threshold for a continuous preset duration, it is determined that the power supply battery is in a preset low power state. This can avoid jitter in power data or detection errors that may cause false detection of a low power state, thereby improving the accuracy and stability of the tracking bracket system control.

[0090] Step S20: If it is detected that the power supply battery is in the preset low power state, detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment;

[0091] If the power supply battery is detected to be in a preset low-battery state, the PV module can be detected to determine whether it is currently in a preset low-light environment. A low-light environment refers to an environment where the PV module's power generation is low due to insufficient sunlight. In this embodiment, the specific detection rules for a low-light environment are not limited and can be pre-configured as needed. For example, in one feasible embodiment, a light sensor can be provided to detect the light intensity of the PV module's environment. If the light intensity is less than a certain threshold, the PV module is determined to be in a low-light environment.

[0092] In one feasible implementation, after detecting that the power supply battery is in a preset low-battery state, a prompt message may be output so that on-site maintenance personnel can confirm the low-battery state of the power supply battery or replace the power supply battery after receiving the prompt.

[0093] Step S30: If it is detected that the photovoltaic component is currently in the insufficient light energy environment, the tracking bracket system is maintained in a stopped state, or the tracking bracket system is controlled to switch from the tracking state to the stopped state, wherein the photovoltaic component is in a flat position in the stopped state, and the tracking bracket system is used to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

[0094] The tracking system can operate according to a pre-defined strategy, and its states can include a stopped state and a tracking state. The strategy can be used to specify under what circumstances the tracking system enters the stopped state and the tracking state, that is, it can be used to define the transition rules between the various states of the tracking system. In the stopped state, the tracking system does not adjust the angle of the photovoltaic modules, which remain flat. In the tracking state, the tracking system adjusts the angle of the photovoltaic modules to track the direction of sunlight. In this embodiment, there are no restrictions on the operating strategy of the tracking system, nor on the specific implementation method for the tracking system to track the direction of sunlight.

[0095] During the operation of the tracking bracket system according to the strategy, if it is detected that the power supply battery is in a preset low power state and the photovoltaic module is currently in an environment with insufficient light energy, the tracking bracket system can be kept in a stopped state when it is currently in a stopped state, or the tracking bracket system can be controlled to switch from the tracking state to the stopped state when it is currently in a tracking state.

[0096] When the power supply battery is in a preset low-battery state, it indicates that the power of the power supply battery may not be sufficient to support the tracking bracket system in making excessive angle adjustments to the photovoltaic module. In this case, if the photovoltaic module is in an environment with insufficient light energy, the photovoltaic module's own power generation power is also low, and it may not be able to support the tracking bracket system in making excessive angle adjustments to the photovoltaic module. As a result, when the tracking bracket system enters a shutdown state due to lack of power supply, the photovoltaic module may not be able to normally retract to a flat position, thereby increasing the risk of photovoltaic module failure. For example, during a severe storm, the photovoltaic module may be blown over and tipped over due to not being flat. In this embodiment, by detecting the power supply battery of the tracking bracket system, if it is determined that the power supply battery is in a preset low-battery state and that the photovoltaic module is in a preset low-light environment, the tracking bracket system is maintained in the shutdown state, or the tracking bracket system is controlled to switch from the tracking state to the shutdown state, thereby maintaining the photovoltaic module in a flat position or switching to a flat position, thereby avoiding the situation where the photovoltaic module is not flat when the tracking bracket system is unable to operate, thereby reducing the risk of photovoltaic module failure.

[0097] It should be noted that, in this embodiment, there is no restriction on the control method of the tracking bracket system when the power supply battery is in a preset low power state but the photovoltaic component is not in an environment with insufficient light energy, and there is no restriction on the control method of the tracking bracket system when the power supply battery is not in a preset low power state. The control method can be set according to actual needs.

[0098] In one feasible implementation manner, after step S20, the method further includes:

[0099] Step S40 : If it is detected that the photovoltaic assembly is not currently in the insufficient light energy environment, the tracking state of the tracking bracket system is maintained, or the tracking bracket system is controlled to switch from the stopped state to the tracking state.

[0100] During the operation of the tracking bracket system according to the strategy, if it is detected that the power supply battery is in a preset low-power state and the photovoltaic module is not currently in an environment with insufficient light energy, the tracking bracket system can be kept in the tracking state when the tracking bracket system is currently in the tracking state, or the tracking bracket system can be controlled to switch from the stopped state to the tracking state when the tracking bracket system is currently in the stopped state, so that the tracking bracket system can normally adjust the angle of the photovoltaic module to track the direction of sunlight.

[0101] Based on the first embodiment described above, a second embodiment of the photovoltaic tracking bracket system control method of the present invention is proposed. In this embodiment, the step of detecting whether the photovoltaic module is currently in a preset light energy insufficient environment in step S20 includes:

[0102] Step S201, obtaining the sunrise time of the geographical location of the photovoltaic module on the current day;

[0103] In this embodiment, a feasible specific detection rule for an environment with insufficient light energy is proposed. Photovoltaic modules are installed in different geographical locations, and the time of sunrise in the environment in which they are located is different. The time of sunrise in the environment where the same photovoltaic module is located is also different every day. In this embodiment, after detecting that the power supply battery is in a preset low power state, the sunrise time of the geographical location of the photovoltaic module on the day can be obtained. In this embodiment, there is no restriction on the method of obtaining the sunrise time of the geographical location of the photovoltaic module on the day; for example, the sunrise time of the geographical location of the photovoltaic module on the day can be obtained from other devices or from a server; for example, the sunrise time of the geographical location of the photovoltaic module on the day can be calculated based on a pre-set astronomical algorithm, the geographical location of the photovoltaic module and the date of the day. It should be noted that the sunrise time of the day is an estimated time, and the precise sunrise time can be calculated by using an accurate astronomical algorithm.

[0104] Step S202, detecting whether the current time is within a first preset time period from the sunrise time;

[0105] The first preset time period can be set according to specific circumstances and is not limited in this embodiment. For example, it can be set to half an hour. It should be noted that in this embodiment, the current time may refer to the time when the program executes step S202, but is not strictly limited to this time. For example, it can also be the time when the power supply battery is detected to be in a preset low power state and the photovoltaic module is in an environment with insufficient light energy.

[0106] Step S203 : If the current time is within the first preset time period from the sunrise time, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0107] If the current moment is within the first preset time period from the sunrise moment, it means that the sun has just risen and the light intensity is not enough. Therefore, in this case, it can be determined that the photovoltaic module is currently in an environment with insufficient light energy, so that the tracking bracket system can be controlled to remain in a stopped state, or switched from the tracking state to the stopped state to ensure that when the power supply battery of the tracking bracket system is low and the sun has just risen, resulting in insufficient power generation of the photovoltaic module, the tracking bracket system is in a stopped state, thereby avoiding failure of the photovoltaic module due to the photovoltaic module not being leveled when the tracking bracket system is exhausted.

[0108] In a specific embodiment, if the current time is not within the first preset time period from the sunrise time, it can be determined that the photovoltaic component is not currently in a light-deficient environment. Alternatively, a further detection can be performed in combination with other detection rules to determine whether the photovoltaic component is currently in a light-deficient environment based on the results of the further detection.

[0109] In one feasible implementation, the photovoltaic tracking bracket system control method further includes:

[0110] Step S50, before the sunrise time, controlling the tracking support system to maintain the stopped operation state;

[0111] In this embodiment, a feasible operation strategy for the tracking bracket system is proposed. Before the sunrise time of the day when the photovoltaic module is located, the tracking bracket system can be controlled to remain in a stopped state. It is understandable that before the sunrise time, the intensity of sunlight is very low, and the power generation power of the photovoltaic module is extremely low or even zero. At this time, there is no need to adjust the angle of the photovoltaic module through the tracking bracket system to track the sunlight. That is, at this time, by controlling the tracking bracket system to remain in a stopped state, the photovoltaic module is kept in a flat posture, avoiding malfunction of the photovoltaic module due to not being flat. Before the sunrise time of the day when the photovoltaic module is located, it is not necessary to detect whether the power supply battery is in a preset low power state and whether the photovoltaic module is in an environment with insufficient light energy, which can reduce the cost of equipment resources consumed by the detection.

[0112] Step S60: After reaching the sunrise time, execute step S10.

[0113] After reaching the geographic location of the photovoltaic module at sunrise on that day, the tracking system can begin detecting whether the power supply battery of the tracking system is in a preset low-battery state. Furthermore, if the power supply battery is in a low-battery state and the photovoltaic module is in an insufficient light energy environment, the tracking system can be controlled to maintain or switch to a stopped state, thereby preventing malfunction of the photovoltaic module. In one feasible embodiment, the tracking system can be controlled to maintain a stopped state before sunrise on that day. After sunrise on that day, the power supply battery is detected at predetermined intervals to determine whether it is in a preset low-battery state. After detecting that the power supply battery is in a preset low-battery state, the tracking system is detected to determine whether the photovoltaic module is in a preset insufficient light energy environment. If so, the tracking system is controlled to maintain a stopped state. If not, the tracking system is controlled to switch from the stopped state to a tracking state.

[0114] Based on the first and / or second embodiments described above, a third embodiment of a photovoltaic tracking bracket system control method of the present invention is proposed. In this embodiment, the step of detecting whether the photovoltaic module is currently in a preset light energy deficiency environment in step S20 includes:

[0115] Step S204, obtaining the sunset time of the geographical location of the photovoltaic module on the current day;

[0116] In this embodiment, another feasible specific detection rule for an environment with insufficient light energy is proposed. Photovoltaic modules are installed in different geographical locations, and the time of sun setting in the environment in which they are located is different. The time of sun setting in the environment in which the same photovoltaic module is located is also different every day. In this embodiment, after detecting that the power supply battery is in a preset low power state, the sunset time of the photovoltaic module at the geographical location of the day can be obtained. In this embodiment, there is no restriction on the method of obtaining the sunset time of the photovoltaic module at the geographical location of the day; for example, the sunset time of the photovoltaic module at the geographical location of the day can be obtained from other devices or from a server; for example, the sunset time of the photovoltaic module at the geographical location of the day can be calculated based on a pre-set astronomical algorithm, the geographical location of the photovoltaic module and the date of the day. It should be noted that the sunset time of the day is an estimated time, and the precise sunset time can be calculated by using an accurate astronomical algorithm.

[0117] In one feasible implementation, the step S203 includes:

[0118] Step S2031, obtaining location information of the photovoltaic module;

[0119] Step S2032: Calculate the sunset time of the day based on the location information.

[0120] In this embodiment, there is no limitation on the algorithm for calculating the sunset time of the day based on the location information, and the algorithm can be set or selected as needed.

[0121] Step S205, detecting whether the current time is within a second preset time period before the sunset time;

[0122] The second preset time period can be set according to specific circumstances and is not limited in this embodiment. For example, it can be set to one hour. It should be noted that in this embodiment, the current time may refer to the time when the program executes step S205, but is not strictly limited to this time. For example, it can also be the time when the power supply battery is detected to be in a preset low power state and the photovoltaic module is in an environment with insufficient light energy.

[0123] Step S206 : If the current moment is within the second preset time period before the sunset moment, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0124] If the current moment is within the second preset time period before sunset, it means that the sun has not yet set below the horizon but is about to set, and the light intensity is not enough. Therefore, in this case, it can be determined that the photovoltaic module is currently in an environment with insufficient light energy, so that the tracking bracket system can be controlled to remain in a stopped state, or switched from a tracking state to a stopped state, to ensure that when the power supply battery of the tracking bracket system is low and the sun has just risen, resulting in insufficient power generation of the photovoltaic module, the tracking bracket system is in a stopped state, thereby avoiding failure of the photovoltaic module due to the photovoltaic module not being leveled when the tracking bracket system is exhausted.

[0125] In a specific embodiment, if the current time is not within the second preset time period before sunset, it can be determined that the photovoltaic component is not currently in a light-deficient environment. Alternatively, a further detection can be performed in combination with other detection rules to determine whether the photovoltaic component is currently in a light-deficient environment based on the results of the further detection.

[0126] In one feasible implementation, the photovoltaic tracking bracket system control method further includes:

[0127] Step S70, before the sunset time, executing step S10;

[0128] In this embodiment, a feasible operation strategy for a tracking system is proposed. Before sunset on the day the PV panels are located, it is possible to detect whether the tracking system's power supply battery is in a preset low-battery state. If the power supply battery is low and the PV panels are in an environment with insufficient sunlight, the tracking system can be controlled to maintain or switch to a stopped state, thereby preventing PV panel failure.

[0129] Step S80: After reaching the sunset time, controlling the tracking support system to maintain the stopped operation state.

[0130] After sunset on the same day at the location of the photovoltaic module, the tracking bracket system can be controlled to remain in a stopped state. It is understandable that after sunset, the intensity of sunlight is very low, and the power generation power of the photovoltaic module is extremely low or even zero. At this time, there is no need to adjust the angle of the photovoltaic module to track the sunlight through the tracking bracket system. In other words, by controlling the tracking bracket system to remain in a stopped state, the photovoltaic module remains in a flat position, avoiding malfunctions of the photovoltaic module due to not being flat. After sunset on the same day at the location of the photovoltaic module, it is not necessary to detect whether the power supply battery is in a preset low power state and whether the photovoltaic module is in an environment with insufficient light energy, which can reduce the cost of equipment resources consumed by the detection.

[0131] In one feasible implementation, the tracking bracket system can be controlled to remain in a stopped operating state after sunset on the same day. Before sunset on the same day, the power supply battery is detected every preset time interval to see whether it is in a preset low-battery state. After detecting that the power supply battery is in the preset low-battery state, it is detected whether the photovoltaic module is in a preset light-deficient environment. If so, the tracking bracket system is controlled to remain in a stopped operating state. If not, the tracking bracket system is controlled to switch from the stopped operating state to the tracking state.

[0132] In specific implementations, the two light-deficient environment detection rules described in the second and third embodiments can also be combined. For example, in one feasible implementation, the sunrise and sunset times of the photovoltaic module's geographic location on the day can be obtained. If the current time is within a first preset time period from the sunset time, or within a second preset time period before the sunset time, then the photovoltaic module is determined to be in a light-deficient environment. In one feasible embodiment, the tracking bracket system can be controlled to remain in a stopped state before the sunrise time of the day, and after the sunrise time is reached, the power supply battery is checked at regular intervals to see if it is in a preset low-battery state; if it is detected that the power supply battery is not in the preset low-battery state, the tracking bracket system is controlled to remain in the tracking state, or switch from the stopped state to the tracking state; if the power supply battery is in the preset low-battery state, it is detected whether the current time is within a first preset time period from the sunrise time, or within a second preset time period before the sunset time. If so, the tracking bracket system is controlled to remain in a stopped state, or switch from the tracking state to the stopped state; if not, the tracking bracket system is controlled to switch from the stopped state to the tracking state, or maintain the tracking state; after the sunset time is reached, the tracking bracket system is controlled to switch from the tracking state to the stopped state, or remain in the stopped state, and the low-battery state detection can be stopped until the sunrise time of the next day, and the low-battery state detection is started again, and the operation is repeated.

[0133] Based on the first, second and / or third embodiments described above, a fourth embodiment of the photovoltaic tracking bracket system control method of the present invention is proposed. In this embodiment, the step of detecting whether the photovoltaic module is currently in a preset light energy insufficient environment in step S20 includes:

[0134] Step S207, obtaining the current inverter power value of the photovoltaic module;

[0135] In this embodiment, another feasible specific detection rule for an environment with insufficient light energy is proposed. In some specific application scenarios, the photovoltaic power generation system can provide the function of collecting inverter data, while in some application scenarios, it cannot provide the function of collecting inverter data. In the case where the inverter power value of the photovoltaic module can be obtained, the inverter power value of the photovoltaic module can be used to determine whether the photovoltaic module is in an environment with insufficient light energy. The method of obtaining the inverter power value of the photovoltaic module is not limited in this embodiment. When the inverter power value of the photovoltaic module is higher, it means that the current power generation capacity of the photovoltaic module is stronger, that is, the intensity of sunlight is greater at this time.

[0136] Step S208, detecting whether the inverter power value is less than a preset power threshold;

[0137] The preset power threshold can be set in advance as needed and is not limited in this embodiment.

[0138] Step S209 : If the inverter power value is less than the preset power threshold, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0139] If the inverter power value is less than the preset power threshold, it means that the power generation capacity of the photovoltaic module is weak at this time, that is, the solar radiation intensity is small at this time. It can be determined that the photovoltaic module is currently in an environment with insufficient light energy, so as to control the tracking bracket system to remain in a stopped state or switch from the tracking state to the stopped state, so as to avoid malfunction of the photovoltaic module due to not being level.

[0140] In a specific implementation, the three light-deficient environment detection rules of the second, third, and fourth embodiments can also be used in combination. If the inverter power value of the photovoltaic module can be obtained, the inverter power value can be used preferentially to determine whether the photovoltaic module is in a light-deficient environment. If the inverter power value cannot be obtained, the current time and the sunrise and sunset times of the same day can be used to determine whether the photovoltaic module is in a light-deficient environment.

[0141] It should be noted that in the specific implementation of the present invention, a new battery management and low-power operation solution for the photovoltaic tracking bracket is proposed, which comprehensively adds battery low-power detection and fault alarm, and optimizes the operation strategy of the tracking bracket system when the power supply battery is low. It reduces the probability of failure under low battery, improves the stability of the tracking bracket system, and greatly reduces maintenance costs.

[0142] In addition, the embodiment of the present invention also provides a photovoltaic tracking bracket system control device, referring to Figure 3 , the photovoltaic tracking bracket system control device includes:

[0143] The first detection module 10 is used to detect whether the power supply battery of the tracking bracket system is in a preset low power state;

[0144] The second detection module 20 is configured to detect whether the photovoltaic assembly is currently in a preset light energy insufficient environment if it is detected that the power supply battery is in the preset low power state;

[0145] The control module 30 is used to maintain the tracking bracket system in a stopped state if it is detected that the photovoltaic component is currently in the insufficient light energy environment, or to control the tracking bracket system to switch from the tracking state to the stopped state, wherein the photovoltaic component is in a flat posture in the stopped state, and the tracking bracket system is used to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

[0146] In one feasible implementation, the first detection module 10 is further configured to:

[0147] Detecting whether the power level of the power supply battery of the tracking bracket system is less than a preset power threshold, wherein the preset power threshold is the minimum power level required to support the tracking bracket system to adjust the photovoltaic module from the maximum tilt angle to a flat posture;

[0148] If it is detected that the power level of the power supply battery is less than the preset current threshold value for a continuous preset period of time, it is determined that the power supply battery is in the preset low power state.

[0149] In one feasible implementation, the second detection module 20 is further configured to:

[0150] Obtaining the sunrise time of the photovoltaic module at its geographical location on that day;

[0151] Detecting whether the current time is within a first preset time period from the sunrise time;

[0152] If the current moment is within the first preset time period from the sunrise moment, it is determined that the photovoltaic component is currently in the light energy insufficient environment.

[0153] In one feasible implementation, the control module 30 is further configured to:

[0154] Before the sunrise time, controlling the tracking support system to maintain the stopped operation state;

[0155] After the sunrise time is reached, the operation of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state is performed.

[0156] In one feasible implementation, the second detection module 20 is further configured to:

[0157] Obtaining the sunset time of the photovoltaic module's geographical location on the current day;

[0158] detecting whether the current time is within a second preset time period before the sunset time;

[0159] If the current moment is within the second preset time period before the sunset moment, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0160] In one feasible implementation, the control module 30 is further configured to:

[0161] Before the sunset time, performing the operation of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state;

[0162] After reaching the sunset time, the tracking support system is controlled to maintain the stopped operation state.

[0163] In one feasible implementation, the second detection module 20 is further configured to:

[0164] Obtaining location information of the photovoltaic module;

[0165] The sunset time of the day is calculated according to the position information.

[0166] In one feasible implementation, the second detection module 20 is further configured to:

[0167] Obtaining the current inverter power value of the photovoltaic module;

[0168] Detecting whether the inverter power value is less than a preset power threshold;

[0169] If the inverter power value is less than the preset power threshold, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

[0170] In one feasible implementation, the control module 30 is further configured to:

[0171] If it is detected that the photovoltaic assembly is not currently in the insufficient light energy environment, the tracking state of the tracking bracket system is maintained, or the tracking bracket system is controlled to switch from the stopped operation state to the tracking state.

[0172] The expanded content of the specific implementation of the photovoltaic power generation tracking bracket system control device of the present invention is basically the same as the various embodiments of the photovoltaic power generation tracking bracket system control method described above, and will not be repeated here.

[0173] In addition, an embodiment of the present invention also proposes a computer-readable storage medium, which stores a photovoltaic power generation tracking bracket system control program. When the photovoltaic power generation tracking bracket system control program is executed by a processor, the steps of the photovoltaic power generation tracking bracket system control method described below are implemented.

[0174] The various embodiments of the photovoltaic power generation tracking bracket system control device and the computer-readable storage medium of the present invention can refer to the various embodiments of the photovoltaic power generation tracking bracket system control method of the present invention, and will not be repeated here.

[0175] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0176] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0177] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0178] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A photovoltaic tracking bracket system control method, characterized in that: The photovoltaic tracking bracket system control method comprises the following steps: Detecting whether the power supply battery of the tracking bracket system is in a preset low power state; If it is detected that the power supply battery is in the preset low power state, detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment, wherein when the power supply battery is in the preset low power state, it means that the power supply battery will not be sufficient to support the tracking bracket system to adjust the photovoltaic assembly from the maximum tilt angle to a flat posture; If it is detected that the photovoltaic component is currently in the insufficient light energy environment, the tracking bracket system is maintained in a stopped state, or the tracking bracket system is controlled to switch from the tracking state to the stopped state, wherein the photovoltaic component is in a flat posture in the stopped state, and the tracking bracket system is used to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

2. The photovoltaic tracking bracket system control method according to claim 1, characterized in that: The step of detecting whether the power supply battery of the tracking bracket system is in a preset low power state includes: Detecting whether the power level of the power supply battery of the tracking bracket system is less than a preset power threshold, wherein the preset power threshold is the minimum power level required to support the tracking bracket system to adjust the photovoltaic module from the maximum tilt angle to a flat posture; If it is detected that the power level of the power supply battery is less than the preset power level threshold value within a continuous preset time period, it is determined that the power supply battery is in the preset low power state.

3. The photovoltaic tracking bracket system control method according to claim 1, wherein: The step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes: Obtaining the sunrise time of the photovoltaic module at its geographical location on that day; Detecting whether the current time is within a first preset time period from the sunrise time; If the current moment is within the first preset time period from the sunrise moment, it is determined that the photovoltaic component is currently in the light energy insufficient environment.

4. The photovoltaic tracking bracket system control method according to claim 3, wherein: The photovoltaic tracking bracket system control method further includes: Before the sunrise time, controlling the tracking support system to maintain the stopped operation state; After the sunrise time is reached, the step of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state is performed.

5. The photovoltaic tracking bracket system control method according to claim 1, wherein: The step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes: Obtaining the sunset time of the photovoltaic module's geographical location on the current day; detecting whether the current time is within a second preset time period before the sunset time; If the current moment is within the second preset time period before the sunset moment, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

6. The photovoltaic tracking bracket system control method according to claim 5, characterized in that: The photovoltaic tracking bracket system control method further includes: Before the sunset time, performing the step of detecting whether the power supply battery of the tracking bracket system of the photovoltaic assembly is in a preset low power state; After reaching the sunset time, the tracking support system is controlled to maintain the stopped operation state.

7. The photovoltaic tracking bracket system control method according to claim 5, characterized in that: The step of obtaining the geographical location of the photovoltaic assembly at the sunset time of the day includes: Obtaining location information of the photovoltaic module; The sunset time of the day is calculated according to the position information.

8. The photovoltaic tracking bracket system control method according to claim 1, wherein: The step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment includes: Obtaining the current inverter power value of the photovoltaic module; Detecting whether the inverter power value is less than a preset power threshold; If the inverter power value is less than the preset power threshold, it is determined that the photovoltaic assembly is currently in the light energy insufficient environment.

9. The photovoltaic tracking bracket system control method according to any one of claims 1 to 8, characterized in that: After the step of detecting whether the photovoltaic assembly is currently in a preset light energy insufficient environment, the method further includes: If it is detected that the photovoltaic assembly is not currently in the insufficient light energy environment, the tracking state of the tracking bracket system is maintained, or the tracking bracket system is controlled to switch from the stopped operation state to the tracking state.

10. A photovoltaic tracking bracket system control device, characterized in that: The photovoltaic tracking bracket system control device includes: A first detection module is used to detect whether the power supply battery of the tracking bracket system is in a preset low power state; a second detection module, configured to detect whether the photovoltaic assembly is currently in a preset light energy insufficient environment if it is detected that the power supply battery is in the preset low power state, wherein when the power supply battery is in the preset low power state, it indicates that the power supply battery will not be sufficient to support the tracking bracket system to adjust the photovoltaic assembly from the maximum tilt angle to a flat posture; A control module is configured to maintain the tracking bracket system in a stopped state, or to control the tracking bracket system to switch from a tracking state to the stopped state, if it is detected that the photovoltaic component is currently in an environment with insufficient light energy, wherein the photovoltaic component is in a flat position in the stopped state, and the tracking bracket system is configured to adjust the angle of the photovoltaic component in the tracking state to track the direction of sunlight.

11. A photovoltaic tracking bracket system control device, characterized in that: The photovoltaic power generation tracking bracket system control device includes: a memory, a processor, and a photovoltaic power generation tracking bracket system control program stored in the memory and executable on the processor. When the photovoltaic power generation tracking bracket system control program is executed by the processor, the steps of the photovoltaic power generation tracking bracket system control method according to any one of claims 1 to 9 are implemented.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a photovoltaic tracking bracket system control program, which, when executed by a processor, implements the steps of the photovoltaic tracking bracket system control method according to any one of claims 1 to 9.

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