MPPT photovoltaic charging protection monitoring method and device, computer equipment and storage medium

Abstract

The invention provides an MPPT photovoltaic charging protection monitoring method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a charging light weak state parameter of a photovoltaic rechargeable battery; performing weak source identification adjustment processing on the charging light weak state parameter and a preset light weak state parameter to obtain a charging weak source verification adjustment; and a charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source check adjustment. After the charging light weak state parameters are collected, the light intensity condition of the current photovoltaic charging of the photovoltaic rechargeable battery is determined, and then the charging light weak state parameters are compared with the standard light weak state parameters, so that the difference between the current charging illumination intensity of the photovoltaic rechargeable battery and the preset charging illumination intensity is conveniently determined; and finally, the charging working mode of the MPPT photovoltaic central control system is optimized and adjusted according to the difference value, so that the photovoltaic charging service life is effectively prolonged.

Description

Technical Field

[0001] The present disclosure relates to the field of photovoltaic charging technology, and in particular to an MPPT photovoltaic charging protection monitoring method, device, computer equipment and storage medium. Background Art

[0002] Using solar power to charge batteries is a common technology, especially in communication base stations in remote areas. Solar base stations use photovoltaic arrays to convert light energy into electrical energy, and use MPPT (Maximum power point tracking) solar controllers to manage battery charging and discharging, providing energy to loads when needed.

[0003] However, in weak light conditions such as morning and evening and cloudy days, due to the special output characteristics of photovoltaic modules, although their output power is very low, the open circuit voltage is still high, and usually exceeds the minimum input start voltage of the MPPT module. When the MPPT module starts running, the output voltage of the photovoltaic module is quickly pulled down until the input undervoltage protection. If the output power of the photovoltaic module is less than the operating power of the auxiliary power supply of the charger at this time, the output voltage of the photovoltaic module is further pulled down until the auxiliary power supply stops running due to input undervoltage. At this time, the MCU loses power and its output relay is also disconnected due to the MCU power failure. This power-on and power-off process is usually repeated many times in weak light conditions, and the number of relay switching times also increases accordingly. The relay is a mechanical switch with a limited life span of switching times. Frequent power on and off in weak light conditions causes its service life to be greatly reduced, and in this case, the battery may be frequently awakened, the battery self-consumption will increase, and the product service life will be shortened. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an MPPT photovoltaic charging protection monitoring method, device, computer equipment and storage medium that effectively increase the service life of photovoltaic charging.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A MPPT photovoltaic charging protection monitoring method, the method comprising:

[0007] Obtain the charging light weak state parameters of the photovoltaic rechargeable battery;

[0008] Performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment;

[0009] A charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0010] In one of the embodiments, obtaining the charging light weak state parameter of the photovoltaic charging battery includes: obtaining the built-in time of the photovoltaic charging battery.

[0011] In one of the embodiments, the weak-light-state parameter of the charging is subjected to weak-source identification and adjustment processing with the preset weak-light-state parameter to obtain the weak-source charging verification and adjustment, including: obtaining the difference between the built-in time and the preset built-in time to obtain the built-in charging time difference.

[0012] In one of the embodiments, sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source calibration difference to adjust the charging mode of the photovoltaic rechargeable battery includes: detecting whether the charging built-in time difference matches the preset built-in time difference; when the charging built-in time difference matches the preset built-in time difference, sending a charging weak source protection enable signal to the MPPT photovoltaic central control system to enable the photovoltaic rechargeable battery to enter a weak source charging standby mode.

[0013] In one embodiment, the step of obtaining the charging light-weak state parameter of the photovoltaic charging battery includes: obtaining the external light-weak intensity of the photovoltaic charging battery.

[0014] In one of the embodiments, the charging light weak state parameter and the preset light weak state parameter are subjected to weak source identification and adjustment processing to obtain a charging weak source verification adjustment, including: obtaining the difference between the external light weak intensity and the preset external light intensity to obtain the charging external light intensity difference.

[0015] In one of the embodiments, sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source calibration difference to adjust the charging mode of the photovoltaic rechargeable battery includes: detecting whether the charging external light intensity difference matches the preset external light intensity difference; when the charging external light intensity difference does not match the preset external light intensity difference, sending a charging weak source protection disabling signal to the MPPT photovoltaic central control system to enable the photovoltaic rechargeable battery to continue to be in the charging mode.

[0016] A MPPT photovoltaic charging protection monitoring device comprises: a photovoltaic weak source acquisition module, a weak source verification processing module and a photovoltaic charging protection module; the photovoltaic weak source acquisition module is used to obtain the charging light-weak state parameters of a photovoltaic charging battery; the weak source verification processing module is used to perform weak source identification and adjustment processing on the charging light-weak state parameters and preset light-weak state parameters to obtain the charging weak source verification adjustment; the photovoltaic charging protection module is used to send a charging weak source protection adjustment signal to an MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0017] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0018] Obtain the charging light weak state parameters of the photovoltaic rechargeable battery;

[0019] Performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment;

[0020] A charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0021] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0022] Obtain the charging light weak state parameters of the photovoltaic rechargeable battery;

[0023] Performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment;

[0024] A charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] After collecting the charging light-weak state parameters, the current light intensity of the photovoltaic charging battery is determined, and then the charging light-weak state parameters are compared with the standard light-weak state parameters to facilitate the determination of the difference between the current charging light intensity of the photovoltaic charging battery and the predetermined charging light intensity. Finally, based on the above difference value, the charging working mode of the MPPT photovoltaic central control system is optimized and adjusted to facilitate the protection of photovoltaic charging in weak light conditions, thereby effectively increasing the service life of photovoltaic charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a flow chart of a MPPT photovoltaic charging protection monitoring method in one embodiment;

[0029] Figure 2 1 is a diagram of the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The present disclosure relates to a MPPT photovoltaic charging protection monitoring method. In one embodiment, the MPPT photovoltaic charging protection monitoring method includes obtaining the charging light weak state parameter of the photovoltaic charging battery; performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain the charging weak source verification adjustment; sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery. After the charging light weak state parameter is collected, the light intensity of the current photovoltaic charging of the photovoltaic charging battery is determined, and then the charging light weak state parameter is compared with the standard light weak state parameter to facilitate the determination of the difference between the current charging light intensity of the photovoltaic charging battery and the preset charging light intensity. Finally, according to the above difference value, the charging working mode of the MPPT photovoltaic central control system is optimized and adjusted to facilitate the protection of photovoltaic charging in weak light conditions, which effectively increases the service life of photovoltaic charging.

[0034] See also Figure 1, which is a flow chart of an MPPT photovoltaic charging protection monitoring method according to an embodiment of the present disclosure. The MPPT photovoltaic charging protection monitoring method includes part or all of the following steps.

[0035] S100: Acquire the charging light weak state parameters of the photovoltaic charging battery.

[0036] In this embodiment, the charging light-weak state parameter is the light intensity data of the photovoltaic charging battery in the real-time photovoltaic charging state, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging.

[0037] S200: Performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source verification and adjustment.

[0038] In this embodiment, the charging light-weak state parameter is the light intensity data of the photovoltaic charging battery in the real-time photovoltaic charging state, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The preset light-weak state parameter is the specified light intensity data of the photovoltaic charging battery in the photovoltaic charging state, that is, the preset light-weak state parameter is the standard light intensity of the photovoltaic charging of the photovoltaic charging battery, that is, the preset light-weak state parameter corresponds to the intensity of the sufficient sunlight received by the photovoltaic charging battery during photovoltaic charging. By performing weak source identification and adjustment processing on the charging light-weak state parameter and the preset light-weak state parameter, it is convenient to determine the degree of difference in the intensity of the sunlight received by the photovoltaic charging battery during the current photovoltaic charging.

[0039] S300: Sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0040] In this embodiment, the charging weak source calibration adjustment is obtained based on the charging light weak state parameter and the preset light weak state parameter. The charging light weak state parameter is the light intensity data of the photovoltaic charging battery under the real-time photovoltaic charging state, that is, the charging light weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The preset light weak state parameter is the specified light intensity data under the photovoltaic charging state of the photovoltaic charging battery, that is, the preset light weak state parameter is the standard light intensity of the photovoltaic charging of the photovoltaic charging battery, that is, the preset light weak state parameter corresponds to the intensity of the sufficient sunlight received by the photovoltaic charging battery during photovoltaic charging. By the weak source identification adjustment processing of the charging light weak state parameter and the preset light weak state parameter, it is convenient to determine the degree of difference in the intensity of the sunlight received by the photovoltaic charging battery during the current photovoltaic charging. After obtaining the charging weak source calibration adjustment, the difference in received light of the photovoltaic charging battery under the current photovoltaic charging state is determined, and a charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system to adjust the working mode of the photovoltaic charging battery, thereby facilitating protection of charging in a weak light environment and preventing the photovoltaic charging battery from entering an undervoltage state.

[0041] In this embodiment, after the charging light-weak state parameters are collected, the light intensity of the current photovoltaic charging of the photovoltaic rechargeable battery is determined, and then the charging light-weak state parameters are compared with the standard light-weak state parameters to facilitate determination of the difference between the current charging light intensity of the photovoltaic rechargeable battery and the predetermined charging light intensity. Finally, based on the above difference value, the charging working mode of the MPPT photovoltaic central control system is optimized and adjusted to facilitate protection when the photovoltaic charging is in weak light conditions, thereby effectively increasing the service life of the photovoltaic charging.

[0042] In one embodiment, the acquisition of the charging light-weak state parameter of the photovoltaic charging battery includes: acquiring the built-in time of the photovoltaic charging battery. In this embodiment, the charging light-weak state parameter is the light intensity data of the photovoltaic charging battery in the real-time photovoltaic charging state, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The charging light-weak state parameter includes the built-in time of the photovoltaic charging battery, and the built-in time is the time corresponding to the built-in clock of the photovoltaic charging battery during the photovoltaic charging process, that is, the built-in time is the real-time working time of the photovoltaic charging battery in a day, that is, the built-in time corresponds to the light change time of the photovoltaic charging battery. By collecting the built-in time, it is convenient to determine the photovoltaic charging time period currently in which the photovoltaic charging battery is located.

[0043] Further, the weak source identification and adjustment processing of the charging light-weak state parameter and the preset light-weak state parameter to obtain the charging weak source verification adjustment includes: obtaining the difference between the built-in time and the preset built-in time to obtain the charging built-in time difference. In this embodiment, the charging light-weak state parameter is the light intensity data of the real-time photovoltaic charging state of the photovoltaic charging battery, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The preset light-weak state parameter is the specified light intensity data of the photovoltaic charging battery under the photovoltaic charging state, that is, the preset light-weak state parameter is the standard light intensity of the photovoltaic charging of the photovoltaic charging battery, that is, the preset light-weak state parameter corresponds to the intensity of sufficient sunlight received by the photovoltaic charging battery during photovoltaic charging. By performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter, it is convenient to determine the degree of difference in the intensity of the sunlight received by the photovoltaic charging battery during the current photovoltaic charging. The charging light weak state parameter includes the built-in time of the photovoltaic charging battery, and the built-in time is the time corresponding to the built-in clock of the photovoltaic charging battery during the photovoltaic charging process, that is, the built-in time is the real-time working time of the photovoltaic charging battery within a day, that is, the built-in time corresponds to the light change time of the photovoltaic charging battery. By collecting the built-in time, it is convenient to determine the photovoltaic charging time period in which the photovoltaic charging battery is currently located. The preset built-in time is the time corresponding to the designated charging state corresponding to the photovoltaic charging battery during the photovoltaic charging process. Specifically, the preset built-in time is the working time of the photovoltaic charging battery between dusk and dawn. By calculating the difference between the built-in time and the preset built-in time, it is convenient to determine the degree of difference between the time of the photovoltaic charging battery during the photovoltaic charging process and the time from dusk to dawn.

[0044] Furthermore, the weak-source charging protection adjustment signal is sent to the MPPT photovoltaic central control system according to the weak-source charging calibration to adjust the charging mode of the photovoltaic rechargeable battery, including: detecting whether the built-in time difference of charging matches the preset built-in time difference; when the built-in time difference of charging matches the preset built-in time difference, a weak-source charging protection enable signal is sent to the MPPT photovoltaic central control system to enable the photovoltaic rechargeable battery to enter the weak-source charging standby mode. In this embodiment, the weak-source charging calibration is obtained based on the weak-light charging state parameter and the preset weak-light state parameter, and the weak-light charging state parameter is the light intensity data of the photovoltaic rechargeable battery under the real-time photovoltaic charging state, that is, the weak-light charging state parameter is the light intensity of the current photovoltaic charging of the photovoltaic rechargeable battery, that is, the weak-light charging state parameter corresponds to the intensity of the sunlight received by the photovoltaic rechargeable battery during photovoltaic charging. By collecting the weak-light charging state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic rechargeable battery is charging. The preset weak light state parameter is the specified light intensity data under the photovoltaic charging state of the photovoltaic rechargeable battery, that is, the preset weak light state parameter is the standard light intensity condition of the photovoltaic charging of the photovoltaic rechargeable battery, that is, the preset weak light state parameter corresponds to the sufficient sunlight intensity received by the photovoltaic rechargeable battery during photovoltaic charging. Through the weak source identification and adjustment processing of the charging weak light state parameter and the preset weak light state parameter, it is convenient to determine the degree of difference in the intensity of sunlight received by the photovoltaic rechargeable battery during the current photovoltaic charging. After obtaining the charging weak source verification adjustment, the difference in the received light of the photovoltaic rechargeable battery under the current photovoltaic charging state can be determined, and the charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system to adjust the working mode of the photovoltaic rechargeable battery, so as to protect its charging in a weak light environment and prevent the photovoltaic rechargeable battery from entering an undervoltage state. The charging light weak state parameter includes the built-in time of the photovoltaic charging battery. The built-in time is the time corresponding to the built-in clock of the photovoltaic charging battery during the photovoltaic charging process, that is, the built-in time is the real-time working time of the photovoltaic charging battery in a day, that is, the built-in time corresponds to the light change time of the photovoltaic charging battery. By collecting the built-in time, it is convenient to determine the photovoltaic charging time period in which the photovoltaic charging battery is currently located. The preset built-in time is the time corresponding to the designated charging state corresponding to the photovoltaic charging battery during the photovoltaic charging process. Specifically, the preset built-in time is the working time of the photovoltaic charging battery between dusk and dawn. By calculating the difference between the built-in time and the preset built-in time, it is convenient to determine the degree of difference between the time of the photovoltaic charging battery during the photovoltaic charging process and the time from dusk to dawn.The built-in charging time difference matches the preset built-in time difference, indicating that the current photovoltaic charging time of the photovoltaic charging battery is within the period from dusk to early morning, that is, the light received by the photovoltaic charging battery in the current photovoltaic charging state is too weak. At this time, a charging weak source protection enable signal is sent to the MPPT photovoltaic central control system to enable the photovoltaic charging battery to enter a weak source charging standby mode, so that the photovoltaic charging battery stops photovoltaic charging and enters a standby low power consumption state to avoid battery exhaustion.

[0045] In another embodiment, when the built-in charging time difference does not match the preset built-in time difference, a charging weak source protection disable signal is sent to the MPPT photovoltaic central control system to enable the photovoltaic charging battery to maintain the current charging mode. At this time, the photovoltaic charging battery is still in a daytime environment with strong light, and the electric energy generated by photovoltaic charging is greater than the electric energy consumed during operation.

[0046] In one embodiment, the acquisition of the charging light-weak state parameter of the photovoltaic charging battery includes: acquiring the external light-weak intensity of the photovoltaic charging battery. In this embodiment, the charging light-weak state parameter is the light intensity data of the photovoltaic charging battery in the real-time photovoltaic charging state, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The charging light-weak state parameter includes the external light-weak intensity of the photovoltaic charging battery, the external light-weak intensity is the light intensity corresponding to the external environment of the photovoltaic charging battery during the photovoltaic charging process, that is, the external light-weak intensity is the light intensity of the photovoltaic charging battery in the current weather, that is, the external light-weak intensity corresponds to the weather change of the photovoltaic charging battery. By collecting the external light-weak intensity, it is convenient to determine the weather change of the photovoltaic charging of the photovoltaic charging battery.

[0047] Further, the weak source identification and adjustment processing of the charging light-weak state parameter and the preset light-weak state parameter to obtain the charging weak source verification adjustment includes: obtaining the difference between the external light-weak intensity and the preset external light intensity to obtain the charging external light intensity difference. In this embodiment, the charging light-weak state parameter is the light intensity data of the real-time photovoltaic charging state of the photovoltaic charging battery, that is, the charging light-weak state parameter is the light intensity of the current photovoltaic charging of the photovoltaic charging battery, that is, the charging light-weak state parameter corresponds to the intensity of the sunlight received by the photovoltaic charging battery during photovoltaic charging. By collecting the charging light-weak state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic charging battery is charging. The preset light-weak state parameter is the specified light intensity data of the photovoltaic charging battery under the photovoltaic charging state, that is, the preset light-weak state parameter is the standard light intensity of the photovoltaic charging of the photovoltaic charging battery, that is, the preset light-weak state parameter corresponds to the intensity of the sufficient sunlight received by the photovoltaic charging battery during photovoltaic charging. By performing weak source identification and adjustment processing on the charging light-weak state parameter and the preset light-weak state parameter, it is convenient to determine the degree of difference in the intensity of the sunlight received by the photovoltaic charging battery during the current photovoltaic charging. The charging light-weak state parameter includes the external light-weak intensity of the photovoltaic charging battery, and the external light-weak intensity is the light intensity corresponding to the external environment of the photovoltaic charging battery during the photovoltaic charging process, that is, the external light-weak intensity is the light intensity of the photovoltaic charging battery in the current weather, that is, the external light-weak intensity corresponds to the weather change of the photovoltaic charging battery. By collecting the external light-weak intensity, it is convenient to determine the photovoltaic charging weather change in which the photovoltaic charging battery is currently located. The preset external light intensity is the light intensity in the specified environmental weather corresponding to the photovoltaic charging battery during the photovoltaic charging process. Specifically, the preset external light intensity is the light intensity of the photovoltaic charging battery in bad weather such as cloudy, rainstorm, etc. By calculating the difference between the external light-weak intensity and the preset external light intensity, it is convenient to determine the degree of difference between the external light intensity and the weak light source environment light intensity of the photovoltaic charging battery during the photovoltaic charging process.

[0048] Furthermore, the weak-source charging protection adjustment signal is sent to the MPPT photovoltaic central control system according to the weak-source charging calibration to adjust the charging mode of the photovoltaic rechargeable battery, including: detecting whether the external light intensity difference of the charging matches the preset external light intensity difference; when the external light intensity difference of the charging does not match the preset external light intensity difference, a weak-source charging protection disabling signal is sent to the MPPT photovoltaic central control system to keep the photovoltaic rechargeable battery in the charging mode. In this embodiment, the weak-source charging calibration is obtained based on the weak-light charging state parameter and the preset weak-light state parameter, and the weak-light charging state parameter is the light intensity data of the photovoltaic rechargeable battery under the real-time photovoltaic charging state, that is, the weak-light charging state parameter is the light intensity of the current photovoltaic charging of the photovoltaic rechargeable battery, that is, the weak-light charging state parameter corresponds to the intensity of the sunlight received by the photovoltaic rechargeable battery during photovoltaic charging. By collecting the weak-light charging state parameter, it is convenient to determine the amount of light per unit area on the photovoltaic panel when the photovoltaic rechargeable battery is charging. The preset weak light state parameter is the specified light intensity data under the photovoltaic charging state of the photovoltaic rechargeable battery, that is, the preset weak light state parameter is the standard light intensity condition of the photovoltaic charging of the photovoltaic rechargeable battery, that is, the preset weak light state parameter corresponds to the sufficient sunlight intensity received by the photovoltaic rechargeable battery during photovoltaic charging. Through the weak source identification and adjustment processing of the charging weak light state parameter and the preset weak light state parameter, it is convenient to determine the degree of difference in the intensity of sunlight received by the photovoltaic rechargeable battery during the current photovoltaic charging. After obtaining the charging weak source verification adjustment, the difference in the received light of the photovoltaic rechargeable battery under the current photovoltaic charging state can be determined, and the charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system to adjust the working mode of the photovoltaic rechargeable battery, so as to protect its charging in a weak light environment and prevent the photovoltaic rechargeable battery from entering an undervoltage state. The charging light-weak state parameter includes the external light-weak intensity of the photovoltaic charging battery. The external light-weak intensity is the light intensity of the external environment corresponding to the photovoltaic charging battery during the photovoltaic charging process, that is, the external light-weak intensity is the light intensity of the photovoltaic charging battery in the current weather, that is, the external light-weak intensity corresponds to the weather change of the photovoltaic charging battery. By collecting the external light-weak intensity, it is convenient to determine the photovoltaic charging weather change in which the photovoltaic charging battery is currently located. The preset external light intensity is the light intensity in the specified environmental weather corresponding to the photovoltaic charging battery during the photovoltaic charging process. Specifically, the preset external light intensity is the light intensity of the photovoltaic charging battery in bad weather such as cloudy and rainy weather. By calculating the difference between the external light-weak intensity and the preset external light intensity, it is convenient to determine the degree of difference between the external light intensity and the weak light source environment light intensity of the photovoltaic charging battery during the photovoltaic charging process.When the charging external light intensity difference does not match the preset external light intensity difference, it indicates that the intensity of the photovoltaic charging external light source currently located in the photovoltaic charging battery is relatively strong, that is, it indicates that the external light source corresponding to the photovoltaic charging battery in the current photovoltaic charging state is a strong light source, and the photovoltaic charging battery maintains the current charging mode by sending a charging weak source protection disable signal to the MPPT photovoltaic central control system. At this time, the photovoltaic charging battery is still in a strong source environment with strong light, and the electric energy generated by photovoltaic charging is greater than the electric energy consumed in operation.

[0049] In another embodiment, the charging external light intensity difference matches the preset external light intensity difference, indicating that the light intensity of the photovoltaic charging external light source where the photovoltaic charging battery is currently located is too weak, that is, it indicates that the external light source corresponding to the photovoltaic charging battery in the current photovoltaic charging state is a weak light source. At this time, a charging weak source protection enable signal is sent to the MPPT photovoltaic central control system to enable the photovoltaic charging battery to enter a weak source charging standby mode, so that the photovoltaic charging battery stops photovoltaic charging and enters a standby low power consumption state to avoid battery exhaustion.

[0050] In the actual charging protection process of the photovoltaic rechargeable battery, when the photovoltaic rechargeable battery is photovoltaically charged, the low-power charging is not enough to offset the consumption of the entire device corresponding to the photovoltaic rechargeable battery. For example, a portable energy storage device or a household energy storage device using a photovoltaic rechargeable battery may easily cause the entire device to shut down and the battery may also be easily exhausted.

[0051] In order to avoid battery exhaustion, the charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source calibration difference to adjust the charging mode of the photovoltaic charging battery, which also includes:

[0052] Obtaining the remaining power supply of the photovoltaic rechargeable battery;

[0053] Detecting whether the remaining power of the power supply is less than a preset remaining power;

[0054] When the remaining power supply amount is less than the preset remaining power, a forced shutdown signal is sent to the MPPT photovoltaic central control system.

[0055] In this embodiment, the power supply remaining power is the current remaining power of the photovoltaic rechargeable battery, and the preset remaining power is the power corresponding to the photovoltaic rechargeable battery when the whole device is working at the minimum power consumption, that is, the preset remaining power is the minimum power provided by the photovoltaic rechargeable battery for the whole device, that is, the preset remaining power is the power consumed by the whole device corresponding to the photovoltaic rechargeable battery at the minimum power consumption. The power supply remaining power is less than the preset remaining power, indicating that the remaining power provided by the photovoltaic rechargeable battery for the whole device plus the power generated by the photovoltaic charging in this process is lower than the power consumed by the whole device during the current photovoltaic charging time, that is, the remaining power of the photovoltaic rechargeable battery is not enough to offset the power consumed by the whole device. At this time, a forced shutdown signal is sent to the MPPT photovoltaic central control system to force the photovoltaic rechargeable battery and the corresponding energy storage device to enter the shutdown mode, specifically, stop photovoltaic charging, and at the same time force the energy storage device using the photovoltaic rechargeable battery to enter the standby low power consumption state.

[0056] Furthermore, the detecting whether the remaining power supply capacity is less than a preset remaining power capacity further includes:

[0057] When the remaining power supply amount is greater than or equal to the preset remaining power, obtaining the low-current charging voltage change rate of the photovoltaic charging battery;

[0058] Detecting whether the low current charging voltage change rate is less than 0;

[0059] When the low-current charging voltage change rate is less than 0, a charging weak light signal is sent to the MPPT photovoltaic central control system.

[0060] In this embodiment, the remaining power of the power supply is greater than or equal to the preset remaining power, and the remaining power of the photovoltaic charging battery is sufficient. At this time, by collecting the low-current charging voltage change rate, it is convenient to determine the charging voltage change of the photovoltaic charging battery under photovoltaic charging with no current or low current, so as to facilitate the determination of the charging voltage rise and fall state of the photovoltaic charging battery under photovoltaic charging with no current or low current. The low-current charging voltage change rate is less than 0, indicating that the photovoltaic charging battery is in a state of charging voltage decline under photovoltaic charging with no current or low current. At this time, the photovoltaic charging of the photovoltaic charging battery is equivalent to weak light charging, which is convenient to further determine the weak source scene from the internal charging state of the photovoltaic charging battery, and further improve the photovoltaic charging detection accuracy of the photovoltaic charging battery.

[0061] Furthermore, the step of detecting whether the low current charging voltage change rate is less than 0 further includes:

[0062] When the low-current charging voltage change rate is greater than or equal to 0, the number of low-voltage protection jumps of the photovoltaic charging battery is accumulated;

[0063] Detecting whether the low voltage protection jump number is greater than or equal to a preset jump number;

[0064] When the low voltage protection jump times are greater than or equal to the preset jump times, an under-stability signal is sent to the MPPT photovoltaic central control system.

[0065] In this embodiment, the low-current charging voltage change rate is greater than or equal to 0, indicating that the photovoltaic charging battery is at a charging voltage rise or rise and fall conversion point under photovoltaic charging with no current or low current. At this time, the photovoltaic charging battery is prone to a protection voltage jump in a low-voltage charging state. By counting the number of low-voltage protection jumps, it is convenient to determine the number of times the photovoltaic charging battery jumps back and forth at the low-voltage protection point during the current photovoltaic charging process, that is, the number of low-voltage protection jumps is the number of times the photovoltaic charging battery has experienced rise and fall changes at the low-voltage protection point. The number of low-voltage protection jumps is greater than or equal to the preset number of jumps, indicating that the photovoltaic charging battery has experienced too many rise and fall changes at the low-voltage protection point, that is, the photovoltaic charging battery is currently in a low-voltage charging input instability situation, and an under-stable signal is sent to the MPPT photovoltaic central control system to protect the photovoltaic charging in this situation. Specifically, at this time, the photovoltaic charging battery is controlled to enter a weak source protection mode.

[0066] In another embodiment, when the low voltage protection transition number is less than the preset transition number, step S300 is executed.

[0067] The above-mentioned various preset variables are all set in the database for timely retrieval, and different preset variables are placed in different storage units, that is, in different storage stacks. Moreover, the remaining power supply, low-current charging voltage change rate and low-voltage protection jump number can be collected through corresponding detectors, for example, through the battery tester and low-voltage jump counter in the photovoltaic weak source acquisition module.

[0068] In one of the embodiments, the present disclosure also relates to an MPPT photovoltaic charging protection monitoring device, comprising: a photovoltaic weak source acquisition module, a weak source verification processing module and a photovoltaic charging protection module; the photovoltaic weak source acquisition module is used to obtain the charging light-weak state parameters of the photovoltaic charging battery; the weak source verification processing module is used to perform weak source identification and adjustment processing on the charging light-weak state parameters and preset light-weak state parameters to obtain the charging weak source verification adjustment; the photovoltaic charging protection module is used to send a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

[0069] In this embodiment, after the photovoltaic weak source acquisition module acquires the charging light weak state parameters, the current photovoltaic charging light intensity of the photovoltaic charging battery is determined, and then the weak source verification processing module compares the charging light weak state parameters with the standard light weak state parameters to facilitate determining the difference between the current charging light intensity of the photovoltaic charging battery and the predetermined charging light intensity. Finally, the photovoltaic charging protection module optimizes and adjusts the charging working mode of the MPPT photovoltaic central control system according to the above difference value, so as to facilitate the protection of photovoltaic charging in weak light conditions, thereby effectively improving the service life of photovoltaic charging.

[0070] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 2 As shown. The computer device includes a processor, a memory and a network interface connected via a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data such as ambient light-sensitive acquisition state parameters, brightness differences, and output lighting brightness adjustment signals. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a MPPT photovoltaic charging protection monitoring method is implemented.

[0071] Those skilled in the art will understand that Figure 2 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0072] In one of the embodiments, the present application further provides a computer device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0073] In one of the embodiments, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0074] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0075] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A MPPT photovoltaic charging protection monitoring method, characterized in that: include: Obtain the charging light weak state parameters of the photovoltaic rechargeable battery; Performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment; A charging weak source protection adjustment signal is sent to the MPPT photovoltaic central control system according to the charging weak source verification adjustment to adjust the charging mode of the photovoltaic charging battery.

2. The MPPT photovoltaic charging protection monitoring method according to claim 1, characterized in that: The step of obtaining the charging light weak state parameter of the photovoltaic charging battery comprises: Get the built-in time of the photovoltaic charging battery.

3. The MPPT photovoltaic charging protection monitoring method according to claim 2 is characterized in that: The step of performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment includes: The difference between the built-in time and the preset built-in time is calculated to obtain the charging built-in time difference.

4. The MPPT photovoltaic charging protection monitoring method according to claim 3 is characterized in that: The step of sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source calibration difference to adjust the charging mode of the photovoltaic charging battery includes: Detecting whether the charging built-in time difference matches the preset built-in time difference; When the charging built-in time difference matches the preset built-in time difference, a charging weak source protection enable signal is sent to the MPPT photovoltaic central control system to enable the photovoltaic charging battery to enter a weak source charging standby mode.

5. The MPPT photovoltaic charging protection monitoring method according to claim 1, characterized in that: The step of obtaining the charging light weak state parameter of the photovoltaic charging battery comprises: The external light intensity of the photovoltaic charging cell is obtained.

6. The MPPT photovoltaic charging protection monitoring method according to claim 5, characterized in that: The step of performing weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source calibration adjustment includes: The difference between the external light intensity and the preset external light intensity is calculated to obtain the charging external light intensity difference.

7. The MPPT photovoltaic charging protection monitoring method according to claim 6, characterized in that: The step of sending a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source calibration difference to adjust the charging mode of the photovoltaic charging battery includes: Detecting whether the charging external light intensity difference matches a preset external light intensity difference; When the charging external light intensity difference does not match the preset external light intensity difference, a charging weak source protection disabling signal is sent to the MPPT photovoltaic central control system to keep the photovoltaic charging battery in the charging mode.

8. A MPPT photovoltaic charging protection monitoring device, characterized in that: include: A photovoltaic weak source acquisition module, which is used to obtain the charging light weak state parameters of the photovoltaic rechargeable battery; A weak source verification processing module, the weak source verification processing module is used to perform weak source identification and adjustment processing on the charging light weak state parameter and the preset light weak state parameter to obtain a charging weak source verification adjustment; The photovoltaic charging protection module is used to send a charging weak source protection adjustment signal to the MPPT photovoltaic central control system according to the charging weak source calibration error to adjust the charging mode of the photovoltaic charging battery.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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