Photovoltaic energy storage method and system

Abstract

The invention discloses a photovoltaic energy storage method and system, and relates to the technical field of photovoltaic energy storage, and the system comprises a real-time tracking end, an energy storage monitoring end and an intelligent adjustment end. The real-time tracking end is used for detecting a converted electric energy value of photovoltaic solar energy in real time; the energy storage monitoring end is used for receiving photovoltaic electric energy data accumulated at the current moment in real time; and the intelligent adjusting end is used for receiving a multi-range selective synchronous execution result in real time, predicting whether an electric energy consumption deviation exists in a power grid demand in a range region corresponding to the electric energy value in real time according to the synchronous execution result, and realizing progressive release and storage of the electric energy consumption according to the electric energy consumption deviation. According to the photovoltaic energy storage method and system, whether the operation of the photovoltaic energy storage system is abnormal or not can be found in time, the monofunctionality that the photovoltaic energy storage system can only use electricity or store energy is avoided, the use convenience of the photovoltaic energy storage system is improved, and the leakage loss in the adjustment process of the photovoltaic energy storage system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic energy storage, and particularly relates to a photovoltaic energy storage method and system. Background Art

[0002] Photovoltaic energy storage is a system that combines solar photovoltaic technology and energy storage technology, aiming to improve the utilization efficiency of solar energy. Photovoltaic energy storage refers to the process of converting solar energy into electrical energy using photovoltaic power generation technology and storing it for subsequent use. When sunlight shines on the photovoltaic panels, photons are absorbed by the semiconductor material, causing electrons to jump from the valence band to the conduction band, forming electrons. Under the action of the internal electric field of the PN junction, the electrons move towards the N-type region and the P-type region respectively, forming an electric current. This electric current is converted into alternating current by an inverter or directly stored in the energy storage device.

[0003] Publication No. CN119154343A discloses a control method for a photovoltaic energy storage system and a photovoltaic energy storage system. The method includes: obtaining the power generation amount and power consumption amount of the photovoltaic energy storage system; when the power generation amount is greater than or equal to the power consumption amount, controlling the photovoltaic energy storage system to supply power to the grid or charge according to the relationship between the on-grid electricity price and the valley electricity price; when the power generation amount is less than the power consumption amount, controlling the photovoltaic energy storage system to discharge, or controlling the photovoltaic energy storage system to charge based on the relationship between the on-grid electricity price and the valley electricity price according to the SOC value of the energy storage module or the predicted power generation amount of the photovoltaic energy storage system. The technical solution provided by the embodiments of the present invention, based on the power generation amount and power consumption amount of the photovoltaic energy storage system, effectively improves the utilization efficiency and flexibility of photovoltaic energy and enhances the return rate of photovoltaic charging and storage by combining the relationship between the on-grid electricity price and the valley electricity price with the SOC value and predicted power generation amount of the energy storage module.

[0004] After retrieving the above patents, it is found that there are some deficiencies in photovoltaic energy storage: 1. Although the photovoltaic energy storage system can perform better light energy conversion operations, it is impossible to judge in real time whether the electrical energy of photovoltaic energy storage is abnormal, resulting in the inability to ensure the stability of photovoltaic energy storage during electrical energy conversion and prone to photovoltaic electrical energy conversion deviation; 2. Although the photovoltaic energy storage system in the prior art can predict the power generation amount and control the light energy storage charging, during photovoltaic energy storage, it is impossible to synchronize photovoltaic power consumption and energy storage according to the actual grid demand, resulting in limitations in the use of the photovoltaic energy storage system; 3. When there is an electrical energy deviation in the photovoltaic energy storage system, it is impossible to adjust the storage and release of photovoltaic energy storage in real time, affecting the convenience of using the photovoltaic energy storage system.

[0005] Therefore, a photovoltaic energy storage method and system are proposed to solve the above problems. Summary of the Invention The main purpose of the present invention is to provide a photovoltaic energy storage method and system to solve the problems raised in the above background.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a photovoltaic energy storage method and system, including a real-time tracking end, an energy storage monitoring end, and an intelligent adjustment end; The real-time tracking end is used to detect the converted electric energy value of photovoltaic solar energy in real time (the converted electric energy value represents the electric energy value obtained after sunlight irradiates the photovoltaic solar panel), and judge in real time whether the photovoltaic electric energy value meets the standard (the photovoltaic electric energy value represents the electric energy demand value in the corresponding range area), timely detect the specific electric energy value at the current moment (the specific electric energy value represents the electric energy value obtained after sunlight irradiates the photovoltaic solar panel), and judge whether the photovoltaic converted electric energy value is abnormal (the photovoltaic converted electric energy value represents the electric energy demand value in the corresponding range area); The energy storage monitoring end is used to receive the accumulated photovoltaic electric energy data at the current moment in real time, and synchronously perform photovoltaic power consumption and energy storage according to the actual power grid demand. When synchronously executing, synchronous adjustment of photovoltaic power consumption and power storage is realized selectively in multiple ranges; The intelligent adjustment end is used to receive the synchronous execution results selectively in multiple ranges in real time, and judge in real time whether there is an electric energy consumption deviation in the power grid demand corresponding to the electric energy value range area according to the synchronous execution results, and combine different set safety values in the range area, and realize the release and storage of progressive electric energy consumption according to the electric energy consumption deviation.

[0007] The real-time tracking end includes a photovoltaic acquisition module, a range corresponding module, and an abnormal tracking module; The photovoltaic acquisition module includes a multi-photovoltaic panel unit and a multi-electric energy acquisition unit; The multi-photovoltaic panel unit is used to set multiple photovoltaic panels to obtain solar energy, and convert the obtained solar energy into electric energy in real time. The multiple photovoltaic panels are distributed in four directions, and two photovoltaic panels are arranged at right angles; The multi-electric energy acquisition unit is used to collect the electric energy data converted by multiple photovoltaic panels in real time through a data collector.

[0008] The range corresponding module includes an electric energy receiving unit and a regional standard unit; The electric energy receiving unit is used to receive historical power grid demand data in real time through a data receiver. The historical power grid demand data includes power consumption, power factor, load parameters, etc. in corresponding time periods in different range areas; The regional standard unit is used to set standard power grid demand data according to different range areas. The standard power grid demand data includes standard power consumption, standard power factor, standard load parameters, etc. in corresponding time periods in different range areas.

[0009] The abnormal tracking module includes a compliance judgment unit, an electric energy detection unit, and an electric energy warning unit; The compliance judgment unit is used to calculate the photovoltaic power value E at the current moment in real time. The calculation formula is as follows E = A × η × G × H × T; Wherein, A represents the surface area of the available photovoltaic equipment, η represents the conversion efficiency of the photovoltaic cell, G represents the solar radiation intensity, H represents the available coefficient of the solar radiation at the geographical location, and T represents the operation time; Calculate the difference between the photovoltaic power value and the standard grid demand data. If the difference is greater than or equal to 100 volt-amperes, it means the electric energy meets the standard. If the difference is less than 100 volt-amperes, it means the electric energy does not meet the standard; The electric energy detection unit is used to track the difference result of the difference calculation between the photovoltaic power value at the current moment and the standard grid demand data through a data tracker. If the difference is greater than 0, it means the photovoltaic converted power value is normal. If the difference is less than or equal to 0, it means the photovoltaic converted power value is abnormal; The electric energy warning unit is used to send a voice alarm when the photovoltaic converted power value is abnormal.

[0010] The energy storage monitoring end includes an electric energy receiving module, a range selection module, and power consumption and energy storage synchronization; The electric energy receiving module includes an electric energy threshold unit and an overlimit storage unit; The electric energy threshold unit is used to set the grid demand storage threshold (the grid demand storage threshold represents 100 volt-amperes exceeding the standard grid demand data of the corresponding range area) and the grid demand warning threshold (the grid demand warning threshold represents not exceeding 50 volt-amperes of the standard grid demand data of the corresponding range area) in real time according to the actual needs of different range areas. The grid demand storage threshold is the storage value and power consumption value after the grid demand meets the standard set to ensure normal power consumption in different range areas; The overlimit storage unit is used to receive the grid demand storage threshold of the corresponding range area in real time. The grid demand storage threshold is the minimum value set to meet the energy storage demand of the electric energy to ensure normal power consumption in different range areas. Calculate the difference between the grid demand storage threshold and the standard grid demand data of the corresponding range area. If the grid demand storage threshold exceeds 100 volt-amperes of the standard grid demand data of the corresponding range area, it means the electric energy demand is met, and the photovoltaic power value exceeding 100 volt-amperes of the standard grid demand data of the corresponding range area is automatically stored in the photovoltaic energy storage device. The photovoltaic power value with a difference result greater than 0 and less than 100 volt-amperes is automatically input into the photovoltaic power consumption equipment. If the difference result is less than or equal to 0, the system is reported to issue a power shortage alarm.

[0011] The range selection module includes an area corresponding unit and an ultra-low warning unit; The area corresponding unit is used to automatically match the corresponding grid demand storage threshold according to the standard grid demand data of different range areas; The ultra-low warning unit is used to receive the grid demand warning threshold of the corresponding range area in real time, calculate the difference between the grid demand warning threshold and the standard grid demand data of the corresponding range area. The grid demand warning threshold is the minimum value that meets the grid power demand set to ensure normal power consumption in different range areas. If the difference result is greater than 0 and less than 50 volt-amperes, it means that the grid demand at the current moment is met, and the photovoltaic power energy value exceeding the grid demand warning threshold by 50 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power energy value not exceeding 50 volt-amperes is automatically stored in the photovoltaic power consumption device for power consumption needs. If the difference result is less than or equal to 0, the system is reported to issue a voice alarm.

[0012] The power consumption energy storage synchronization includes an execution selection unit, a range matching unit, and a real-time tracking unit; The execution selection unit is used to store the threshold of the grid demand and the grid demand warning threshold of the corresponding range area according to the current moment, and select the photovoltaic power consumption and photovoltaic energy storage power of the corresponding range area in real time. The selection method combines the standard grid demand data of different range areas. Specifically: Step 1: Calculate the difference between the grid demand storage threshold and the standard grid demand data of the corresponding range area. If the difference result is greater than 0, the photovoltaic power energy value exceeding the grid demand storage threshold by 100 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power energy value with the difference result greater than 0 and less than 100 volt-amperes is automatically input into the photovoltaic power consumption device. Here, it means that the grid demand of the corresponding range area is met, and the photovoltaic power energy value exceeding the demand is automatically stored (the standard grid demand data for the difference calculation here is the standard power consumption, and what is stored is the excess power consumption, and what enters the photovoltaic power consumption device is); Step 2: Calculate the difference between the grid demand warning threshold and the standard grid demand data of the corresponding range area. If the difference result is greater than 0, the photovoltaic power energy value exceeding the grid demand warning threshold by 50 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power energy value with the difference result greater than 0 and less than 50 volt-amperes is automatically input into the photovoltaic power consumption device. Here, it means that the grid demand of the corresponding range area is met, and the photovoltaic power energy value exceeding the demand is automatically stored; Step 3: Calculate the difference between the photovoltaic power value in the corresponding range area and the standard power grid demand data. If the difference is greater than or equal to 100 volt-amperes of photovoltaic power value, it is automatically input into the photovoltaic energy storage device. Photovoltaic power consumption and energy storage are synchronized according to different range areas. The synchronization is combined with the power grid demand storage threshold and the power grid demand storage warning threshold in different range areas. While meeting the photovoltaic power consumption demand in the corresponding range area, the excess photovoltaic power value is stored in real time. The over-limit storage unit sets the photovoltaic power value exceeding the standard power grid demand data by 100 volt-amperes as the energy storage compliance value, and the ultra-low warning unit sets the photovoltaic power value not exceeding the standard power grid demand data by 50 volt-amperes as the power consumption warning value, indicating that the power grid demand for photovoltaic power is about to be insufficient; The range matching unit is used to perform a power transmission operation on the range area that issues a power grid demand warning automatically when the photovoltaic power value in one of the range areas exceeds the standard power grid demand data by 1000 volt-amperes; The real-time tracking unit is used to track the synchronous execution results of photovoltaic power consumption and energy storage at the current moment through a data tracker.

[0013] The intelligent adjustment end includes a data receiving module, a power prediction module, an error calculation module, and an intelligent adjustment module; The data receiving module is used to receive the synchronous execution results of photovoltaic power consumption and energy storage at the current moment in real time through a data receiver; The power prediction module is used to predict the abnormal power grid demand in the corresponding range area in real time based on the current photovoltaic energy storage power. The prediction method is as follows: Taking one week as a cycle, predict the abnormal power grid demand in the corresponding range area based on the difference results between the photovoltaic power values and the standard power grid demand data in three cycles. If the average value of the difference results in three cycles exceeds the standard power grid demand data, it is judged that the power grid demand in the corresponding range area is normal; otherwise, it is judged that the power grid demand in the corresponding range area is abnormal.

[0014] The error calculation module is used to calculate the power deviation of multiple photovoltaic panels converted at the current moment in real time. The calculation formula is as follows: ; Among them, U is the effective power value of multiple photovoltaic panels, N is the number of sampling points at different times, and UK is the instantaneous sampling value of the power of multiple photovoltaic panels; The power deviation of each base station's power is obtained through comparative calculation. The calculation formula is: ; Among them, D represents the power deviation, S represents the standby power in the battery, and P represents the minimum power consumption threshold; Taking one hour as a cycle, calculate the average value of the power deviation for three cycles. If the power deviations of multiple photovoltaic panels at the current moment are all less than or equal to the average value of the power deviation, it is predicted that there is no power consumption deviation in the grid demand for the corresponding range of power values. If the power deviations of multiple photovoltaic panels at the current moment are all greater than the average value of the power deviation, it is predicted that there is a power consumption deviation in the grid demand for the corresponding range of power values; The intelligent adjustment module includes an electricity consumption adjustment unit, an energy storage adjustment unit, and an adjustment prediction unit; The electricity consumption adjustment unit is used to, according to the calculated power deviation, if the power deviation ≥ 0, perform a progressive increase adjustment on the storage of the corresponding value of the electric energy stored by the photovoltaic panel, and if the power deviation < 0, perform a decreasing energy storage release adjustment on the electric energy stored by the photovoltaic panel; The energy storage adjustment unit is used to adjust the photovoltaic energy storage power in real time according to the power deviation; The adjustment prediction unit is used to calculate the grid power consumption duration for the corresponding range of the photovoltaic energy storage system at the current moment in real time according to the photovoltaic energy storage power. The calculation formula is as follows: Grid power consumption duration for the corresponding range = total power consumption / electrical appliance power; If the grid power consumption duration for the corresponding range exceeds the historical grid power consumption duration by 100 hours, it indicates that the adjustment of the photovoltaic energy storage power is effective, otherwise it is ineffective. If the grid power consumption duration for the corresponding range is less than the historical grid power consumption duration, the system reports and issues a voice alarm.

[0015] A photovoltaic energy storage method includes the following steps: Step 1: Configure the IP address information of the remote control area server for photovoltaic energy storage; Step 2: Enter the real-time tracking end. By detecting the converted power value of photovoltaic solar energy in real time and judging in real time whether the photovoltaic power value meets the standard according to historical grid data, and timely judging whether the converted power value of the photovoltaic is abnormal. If it is abnormal, adjust the converted power value in real time according to the grid data at the current moment (the adjusted power value here represents the converted power value to meet the power consumption demand in the corresponding range), to ensure normal grid data supply; Step 3: Enter the energy storage monitoring end. By receiving the accumulated photovoltaic power data at the current moment in real time and synchronously performing photovoltaic power consumption and energy storage according to the actual grid demand, and through the execution selection unit and the range matching unit, realizing the synchronous execution of photovoltaic power consumption and power storage selectively in multiple ranges; Step 4: Enter the intelligent adjustment end. Receive the information data of the synchronous execution in real time and predict in real time whether there is a power deviation in the power value according to the synchronous execution result. If there is a power deviation, adjust the storage and release of the photovoltaic energy storage in real time.

[0016] The present invention has the following beneficial effects: 1. In the present invention, by setting up a real-time tracking terminal, when the light energy energy storage system is in use, by detecting the converted electrical energy value of photovoltaic solar energy in real time, the specific electrical energy value at the current moment can be detected in a timely manner, so as to more accurately judge whether the photovoltaic converted electrical energy value is abnormal, ensure that the electrical energy converted by solar energy can meet the normal supply of grid data, and can timely detect whether the operation of the photovoltaic energy storage system is abnormal, ensure the stability of the photovoltaic energy storage electrical energy conversion, and further prevent the situation of power grid power outage caused by electrical energy deviation in photovoltaic electrical energy conversion.

[0017] 2. In the present invention, by setting up an energy storage monitoring terminal, when the light energy energy storage system is in use, by receiving the accumulated photovoltaic electrical energy data at the current moment in real time and synchronously performing photovoltaic power consumption and energy storage according to the actual grid demand, the photovoltaic energy storage system can synchronously achieve normal power consumption and normal energy storage, avoid the single functionality that the photovoltaic energy storage system can only consume power or only store energy, so that the photovoltaic energy storage system can store the redundant electrical energy in time for standby even when it is running, reduce the limitations existing when the photovoltaic energy storage system is in use, and ensure the stability, safety and reliability of the energy storage of the photovoltaic energy storage system.

[0018] 3. In the present invention, by setting up an intelligent adjustment terminal, when the light energy energy storage system is in use, by receiving the synchronous execution results selectively in multiple ranges in real time and combining different set safety values in the range area, the progressive release and storage of electrical energy consumption are realized, ensure that when there is an electrical energy deviation in the photovoltaic energy storage system, and detect the power consumption loss in real time when adjusting the storage and release of the photovoltaic energy storage, increase the convenience of using the photovoltaic energy storage system, and reduce the leakage loss in the adjustment process of the photovoltaic energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the step flow architecture of a photovoltaic energy storage method of the present invention; Figure 2 It is a schematic diagram of the structure of the real-time tracking terminal of a photovoltaic energy storage system of the present invention; Figure 3 It is a schematic diagram of the structure of the energy storage monitoring terminal of a photovoltaic energy storage system of the present invention; Figure 4 It is a schematic diagram of the structure of the intelligent adjustment terminal of a photovoltaic energy storage system of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] Embodiment 1 Please refer to Figure 1 - Figure 2 as shown: A photovoltaic energy storage method and system, including a real-time tracking terminal, an energy storage monitoring terminal and an intelligent adjustment terminal; The real-time tracking terminal is used to detect the converted electric energy value of photovoltaic solar energy in real time, and judge in real time whether the photovoltaic electric energy value meets the standard (here, the real-time standard grid demand data is obtained by combining historical grid demand data, and then whether the photovoltaic electric energy value meets the standard is judged by calculating the difference between the photovoltaic electric energy value at the current moment and the real-time standard grid demand data. If the difference between the photovoltaic electric energy value at the current moment and the real-time standard grid demand data is greater than or equal to 100 volt-amperes, it is judged that the photovoltaic electric energy value meets the standard. If the difference between the photovoltaic electric energy value at the current moment and the real-time standard grid demand data is less than 100 volt-amperes, it is judged that the photovoltaic electric energy value does not meet the standard), timely detect the specific value of the electric energy at the current moment, and judge whether the photovoltaic converted electric energy value is abnormal; The energy storage monitoring terminal is used to receive the accumulated photovoltaic electric energy data at the current moment in real time, and synchronously perform photovoltaic power consumption and energy storage according to the actual grid demand. When synchronously executing, it selectively realizes the synchronous adjustment of photovoltaic power consumption and electricity storage in multiple ranges; The intelligent adjustment terminal is used to receive the selectively synchronous execution results in multiple ranges in real time, and judge whether there is an electric energy consumption deviation in the grid demand in the corresponding range area of the electric energy value according to the synchronous execution results, and combine different set safety values in the range area, and realize the progressive release and storage of electric energy consumption according to the electric energy consumption deviation.

[0022] The real-time tracking terminal includes a photovoltaic collection module, a range corresponding module and an abnormal tracking module; The photovoltaic collection module includes multiple photovoltaic panel units and multiple electric energy collection units; The multiple photovoltaic panel units are used to set multiple photovoltaic panels to obtain solar energy, and convert the obtained solar energy into electric energy in real time. The multiple photovoltaic panels are distributed in four directions, and two photovoltaic panels are arranged at right angles; The multiple electric energy collection units are used to collect the electric energy data converted by multiple photovoltaic panels in real time through a data collector.

[0023] The range corresponding module includes an electric energy receiving unit and a regional standard unit; The electric energy receiving unit is used to receive the historical grid demand data in real time through a data receiver; The regional standard unit is used to set the standard grid demand data according to different range areas, ensure that the electric energy converted by solar energy can meet the normal supply of grid data, and can timely detect whether the operation of the photovoltaic energy storage system is abnormal, ensure the stability of photovoltaic energy storage electric energy conversion, and further prevent the situation of grid power failure caused by electric energy deviation in photovoltaic electric energy conversion.

[0024] The abnormal tracking module includes a compliance judgment unit, an electric energy detection unit and an electric energy warning unit; The compliance judgment unit is used to calculate the photovoltaic electric energy value E at the current moment in real time. The calculation formula is as follows E = A × η × G × H × T; Wherein, A represents the surface area of the available photovoltaic device, η represents the conversion efficiency of the photovoltaic cell, G represents the solar radiation intensity, H represents the available coefficient of the solar radiation at the geographical location, and T represents the operating time; Calculate the difference between the photovoltaic power value and the standard grid demand data. If the difference is greater than or equal to 100 volt-amperes, it means the electric energy meets the standard. If the difference is less than 100 volt-amperes, it means the electric energy does not meet the standard; The electric energy detection unit is used to track in real time through the data tracker the difference result of calculating the difference between the current photovoltaic power value and the standard grid demand data. If the difference is greater than 0, it means the photovoltaic converted power value is normal. If the difference is less than or equal to 0, it means the photovoltaic converted power value is abnormal; The electric energy warning unit is used to report a voice alarm issued by the system when the photovoltaic converted power value is abnormal, to ensure that the electric energy converted by the solar energy can meet the normal supply of the grid data, and to be able to timely detect whether the operation of the photovoltaic energy storage system is abnormal, to ensure the stability of the photovoltaic energy storage power conversion, and further prevent the situation of power grid power failure caused by power deviation in the photovoltaic power conversion.

[0025] Embodiment 2 Please refer to Figure 3 As shown: Based on Embodiment 1, the energy storage monitoring end includes an electric energy receiving module, a range selection module, and power consumption and energy storage synchronization; The electric energy receiving module includes an electric energy threshold unit and an overlimit storage unit; The electric energy threshold unit is used to set the grid demand storage threshold and the grid demand warning threshold in real time according to the actual needs of different range areas. The grid demand storage threshold here is used to set the compliance value of the photovoltaic energy storage device, that is, the grid demand storage threshold is greater than the value of the standard grid demand data of the corresponding range area + 100 volt-amperes. When in use, if the standard grid demand data of the corresponding range area is 100 volt-amperes, the grid demand storage threshold is 100 volt-amperes + 100 volt-amperes = 200 volt-amperes. If the photovoltaic electric energy value is 500 volt-amperes, the difference between the photovoltaic electric energy value and the grid demand storage threshold (500 volt-amperes - 200 volt-amperes = 300 volt-amperes) is automatically stored in the photovoltaic energy storage device. The grid demand warning threshold here is used to set the warning value of the photovoltaic power consumption device. When in use, that is, the grid demand warning threshold is less than or equal to the value of the standard grid demand data of the corresponding range area + 50 volt-amperes. If the standard grid demand data of the corresponding range area is 100 volt-amperes, the grid demand warning threshold is 100 volt-amperes + 50 volt-amperes = 150 volt-amperes. If the photovoltaic electric energy value is 120 volt-amperes, calculate the difference between the photovoltaic electric energy value and the grid demand warning threshold (120 volt-amperes - 150 volt-amperes = -30 volt-amperes). Since -30 volt-amperes is less than 50 volt-amperes, it means that the photovoltaic electric energy value at the current moment does not exceed the standard grid demand data of the corresponding range area by 50 volt-amperes. Then calculate the difference between the photovoltaic electric energy value and the standard grid demand data of the corresponding range area (120 volt-amperes - 100 volt-amperes = 20 volt-amperes), and the 20-volt-ampere difference is automatically stored in the photovoltaic power consumption device for power consumption needs. The over-limit storage unit is used to receive the grid demand storage threshold of the corresponding range area in real time, and calculate the difference between the grid demand storage threshold and the standard grid demand data of the corresponding range area. If the difference result is less than or equal to 0, the system is reported to issue a voice alarm.

[0026] The range selection module includes an area corresponding unit and an ultra-low warning unit; The area corresponding unit is used to automatically match the corresponding grid demand storage threshold according to the standard grid demand data of different range areas; The ultra-low warning unit is used to receive the grid demand warning threshold of the corresponding range area in real time, and calculate the difference between the grid demand warning threshold and the standard grid demand data of the corresponding range area. If the difference result is less than or equal to 0, the system is reported to issue a voice alarm, and photovoltaic power consumption and energy storage are synchronized according to the actual grid demand, avoiding the single functionality of the photovoltaic energy storage system that can only consume electricity or only store energy, so that the photovoltaic energy storage system can also store the excess electric energy in time for standby in real time during operation, reducing the limitations existing in the use of the photovoltaic energy storage system, and ensuring the stability, safety and reliability of the energy storage of the photovoltaic energy storage system.

[0027] The power consumption and energy storage synchronization includes an execution selection unit, a range matching unit and a real-time tracking unit; The execution selection unit is used to store the grid demand storage threshold and the grid demand warning threshold for the corresponding range area at the current moment, and to select the photovoltaic power consumption and photovoltaic energy storage power of the corresponding range area in real time. The selection method combines the standard grid demand data of different range areas. Specifically: Step 1: Calculate the difference between the grid demand storage threshold and the standard grid demand data of the corresponding range area. If the difference result is greater than 0, the photovoltaic power value exceeding the grid demand storage threshold by 100 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power value with the difference result greater than 0 and less than 100 volt-amperes is automatically input into the photovoltaic power consumption device; Step 2: Calculate the difference between the grid demand warning threshold and the standard grid demand data of the corresponding range area. If the difference result is greater than 0, the photovoltaic power value exceeding the grid demand warning threshold by 50 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power value with the difference result greater than 0 and less than 50 volt-amperes is automatically input into the photovoltaic power consumption device; Step 3: Calculate the difference between the photovoltaic power value of the corresponding range area and the standard grid demand data. If the difference is greater than or equal to 100 volt-amperes, the photovoltaic power value is automatically input into the photovoltaic energy storage device, and photovoltaic power consumption and energy storage are synchronized according to different range areas; The range matching unit is used to automatically perform power transmission operations on the range area that issues a grid demand warning when the photovoltaic power value of one of the range areas exceeds the standard grid demand data by 1000 volt-amperes; The real-time tracking unit is used to real-time track the synchronous execution results of photovoltaic power consumption and energy storage at the current moment through a data tracker, and synchronize photovoltaic power consumption and energy storage according to the actual grid demand, avoiding the single functionality of the photovoltaic energy storage system that can only consume electricity or only store energy, so that the photovoltaic energy storage system can also store the excess electric energy in time for standby in real time during operation, reducing the limitations existing in the use of the photovoltaic energy storage system, and ensuring the stability, safety and reliability of the photovoltaic energy storage system for energy storage.

[0028] Embodiment III Please refer to Figure 4 As shown: Based on Embodiment I, the intelligent adjustment end includes a data receiving module, a power prediction module, an error calculation module and an intelligent adjustment module; The data receiving module is used to real-time receive the synchronous execution results of photovoltaic power consumption and energy storage at the current moment through a data receiver; The power prediction module is used to real-time predict the grid demand abnormality of the corresponding range area through the photovoltaic energy storage power at the current moment. The prediction method is as follows: Taking one week as a cycle, predicting the abnormal power grid demand in the corresponding range area based on the difference results between the photovoltaic power values in three cycles and the standard power grid demand data. If the average value of the difference results in three cycles exceeds the standard power grid demand data, it is determined that the power grid demand in the corresponding range area is normal; otherwise, it is determined that the power grid demand in the corresponding range area is abnormal. By receiving the results of multi-range selective synchronization in real time, and based on the synchronized execution results, predicting whether there is an electricity consumption deviation in the power grid demand in the corresponding range area of the electricity value, and combining different set safety values in the range area. If there is an electricity consumption deviation, adjusting the storage and release of photovoltaic energy storage in real time.

[0029] The error calculation module is used to calculate the power deviation converted by multiple photovoltaic panels at the current moment in real time. The calculation formula is as follows: ; Where, U is the effective power value of multiple photovoltaic panels, N is the number of sampling points at different times, and UK is the instantaneous sampling value of the power of multiple photovoltaic panels; By comparing and calculating, the power deviation of each base station's power is obtained. The calculation formula is: ; Where, D represents the power deviation, S represents the standby power in the storage battery, and P represents the minimum power consumption threshold; Taking one hour as a cycle, calculating the average value of the power deviation in three cycles. If the power deviations converted by multiple photovoltaic panels at the current moment are all less than or equal to the average value of the power deviation, it is predicted that there is no electricity consumption deviation in the power grid demand in the corresponding range area of the electricity value. If the power deviations converted by multiple photovoltaic panels at the current moment are all greater than the average value of the power deviation, it is predicted that there is an electricity consumption deviation in the power grid demand in the corresponding range area of the electricity value; The intelligent adjustment module includes an electricity consumption adjustment unit, an energy storage adjustment unit, and an adjustment prediction unit; The electricity consumption adjustment unit is used to, according to the calculated power deviation, if the power deviation > 0, perform a progressive increase in the storage of the photovoltaic panel's stored power. The progressive increase in storage adjustment is to increase the stored power of the photovoltaic panel progressively. For example: if the stored energy to be increased is 90, the stored energy is increased by 20 for the first time, 30 for the second time, and 40 for the third time; If the power deviation < 0, perform a progressive release adjustment on the stored power of the photovoltaic panel. The progressive release adjustment is to release the stored energy of the photovoltaic panel's stored power progressively. For example: if the stored energy to be decreased is 90, the power consumption is decreased by 20 for the first time, 30 for the second time, and 40 for the third time; The energy storage adjustment unit is used to adjust the photovoltaic energy storage power in real time according to the power deviation; The adjustment prediction unit is used to calculate the grid power consumption duration of the corresponding range area of the photovoltaic energy storage system in real time according to the photovoltaic energy storage power. The calculation formula is as follows: Grid power consumption duration of the corresponding range area = Total power consumption / Electrical appliance power; If the grid power consumption duration of the corresponding range area exceeds the historical grid power consumption duration by 100 hours, it indicates that adjusting the photovoltaic energy storage power is effective; otherwise, it is ineffective. If the grid power consumption duration of the corresponding range area is less than the historical grid power consumption duration, the system reports and issues a voice alarm to realize the progressive release and storage of electrical energy consumption, ensure that when there is an electrical energy deviation in the photovoltaic energy storage system, the storage and release of photovoltaic energy storage can be adjusted in real time, and the power consumption loss is detected in real time during the adjustment of the storage and release of photovoltaic energy storage, increasing the convenience of using the photovoltaic energy storage system and reducing the leakage loss during the adjustment process of the photovoltaic energy storage system.

[0030] In the present invention, there is provided a photovoltaic energy storage method and system. When the system operates, it first configures the IP address information of the remote control area server for photovoltaic energy storage; enters the real-time tracking end, where the converted electrical energy value of photovoltaic solar energy is detected in real time, and based on historical grid data, it is determined in real time whether the photovoltaic electrical energy value meets the standard, and it is timely determined whether the converted electrical energy value of photovoltaic is abnormal. If it is abnormal, the converted electrical energy value is adjusted in real time according to the grid data at the current moment to ensure normal grid data supply. By detecting the converted electrical energy value of photovoltaic solar energy in real time and determining in real time whether the photovoltaic electrical energy value meets the standard based on historical grid data, when the photovoltaic energy storage system performs light energy conversion, it can timely detect the specific value of the electrical energy at the current moment, thereby being able to more accurately determine whether the converted electrical energy value of photovoltaic is abnormal. If it is abnormal, the electrical energy value is adjusted in real time according to the grid data at the current moment to ensure that the electrical energy converted from solar energy can meet the normal supply of grid data, and it can timely detect whether the operation of the photovoltaic energy storage system is abnormal, ensuring the stability of photovoltaic energy storage electrical energy conversion, and further preventing the situation of power grid power outage caused by electrical energy deviation in photovoltaic electrical energy conversion; enters the energy storage monitoring end, where the accumulated photovoltaic electrical energy data at the current moment is received in real time, and photovoltaic power consumption and energy storage are synchronized according to the actual grid demand. Through the execution selection unit and the range matching unit, photovoltaic power consumption and electricity storage are synchronously executed in multiple ranges selectively. By receiving the accumulated photovoltaic electrical energy data at the current moment in real time and synchronizing photovoltaic power consumption and energy storage according to the actual grid demand, when the photovoltaic energy storage system operates, through the execution selection unit and the range matching unit, it can selectively synchronously execute photovoltaic power consumption and electricity storage in multiple ranges, enabling the photovoltaic energy storage system to synchronously achieve normal power consumption and normal energy storage, and being able to synchronize photovoltaic power consumption and energy storage according to the actual grid demand, avoiding the single functionality that the photovoltaic energy storage system can only consume electricity or only store energy, so that even when the photovoltaic energy storage system is operating, it can timely store the excess electrical energy for standby in real time, reducing the limitations existing in the use of the photovoltaic energy storage system, and ensuring the stability, safety, and reliability of the energy storage of the photovoltaic energy storage system; enters the intelligent adjustment end, where the information data of the synchronous execution is received in real time, and it is predicted in real time whether there is an electrical energy deviation based on the synchronous execution result. If there is an electrical energy deviation, the storage and release of the photovoltaic energy storage are adjusted in real time. By receiving the synchronous execution results selectively in multiple ranges in real time and predicting in real time whether there is an electrical energy consumption deviation in the grid demand corresponding to the electrical energy value range area based on the synchronous execution result, and combining the different set safety values of the range area, if there is an electrical energy consumption deviation, the storage and release of the photovoltaic energy storage are adjusted in real time to achieve the progressive release and storage of electrical energy consumption, ensuring that when there is an electrical energy deviation in the photovoltaic energy storage system, the storage and release of the photovoltaic energy storage can be adjusted in real time, and the power consumption loss is detected in real time during the adjustment of the storage and release of the photovoltaic energy storage, increasing the convenience of using the photovoltaic energy storage system and reducing the leakage loss during the adjustment process of the photovoltaic energy storage system.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic energy storage system, characterized in that, The system includes a real-time tracking end, an energy storage monitoring end, and an intelligent adjustment end; The real-time tracking end is used to detect the converted electrical energy value of photovoltaic solar energy in real time, and judge in real time whether the photovoltaic electrical energy value meets the standard, detect the specific electrical energy value at the current moment in time, and judge whether the photovoltaic converted electrical energy value is abnormal; The energy storage monitoring end is used to receive the accumulated photovoltaic electrical energy data at the current moment in real time, and synchronously perform photovoltaic power consumption and energy storage according to the actual power grid demand. When synchronously executing, synchronous adjustment of photovoltaic power consumption and electricity storage is selectively realized according to multiple ranges; The intelligent adjustment end is used to receive the synchronous execution results selectively in multiple ranges in real time, and judge in real time whether there is an electrical energy consumption deviation in the power grid demand corresponding to the electrical energy value range area according to the synchronous execution results, and combine different set safety values in the range area, and realize progressive release and storage of electrical energy consumption according to the electrical energy consumption deviation.

2. The system according to claim 1, wherein: The real-time tracking end includes a photovoltaic collection module, a range corresponding module, and an abnormal tracking module; The photovoltaic collection module includes multiple photovoltaic panel units and multiple electrical energy collection units; The multiple photovoltaic panel units are used to set multiple photovoltaic panels to obtain solar energy, and convert the obtained solar energy into electrical energy in real time. The multiple photovoltaic panels are distributed in four directions, and two photovoltaic panels are arranged at right angles; The multiple electrical energy collection units are used to collect the electrical energy data converted by multiple photovoltaic panels in real time through a data collector.

3. The system according to claim 2, wherein: The range corresponding module includes an electrical energy receiving unit and a regional standard unit; The electrical energy receiving unit is used to receive historical power grid demand data in real time through a data receiver; The regional standard unit is used to set standard power grid demand data according to different range areas.

4. The system according to claim 3, wherein: The abnormal tracking module includes a compliance judgment unit, an electrical energy detection unit, and an electrical energy warning unit; The compliance judgment unit is used to calculate the photovoltaic electrical energy value E at the current moment in real time. The calculation formula is as follows E = A×η×G×H×T; Where, A represents the surface area of the available photovoltaic equipment, η represents the conversion efficiency of the photovoltaic cell, G represents the solar radiation intensity, H represents the available coefficient of solar radiation at the geographical location, and T represents the operating time; Calculate the difference between the photovoltaic electrical energy value and the standard power grid demand data. If the difference is greater than or equal to 100 volt-amperes, it means that the electrical energy meets the standard. If the difference is less than 100 volt-amperes, it means that the electrical energy does not meet the standard; The electrical energy detection unit is used to track in real time the difference result of the difference calculation between the photovoltaic electrical energy value at the current moment and the standard power grid demand data through a data tracker. If the difference is greater than 0, it means that the photovoltaic converted electrical energy value is normal. If the difference is less than or equal to 0, it means that the photovoltaic converted electrical energy value is abnormal; The electrical energy warning unit is used to report to the system to issue a voice alarm when the photovoltaic converted electrical energy value is abnormal.

5. The system according to claim 1, characterized in that: The energy storage monitoring end includes an electrical energy receiving module, a range selection module, and power consumption and energy storage synchronization; The electrical energy receiving module includes an electrical energy threshold unit and an overlimit storage unit; The electrical energy threshold unit is used to set the power grid demand storage threshold and the power grid demand warning threshold in real time according to the actual needs of different range areas; The overlimit storage unit is used to receive the power grid demand storage threshold corresponding to the range area in real time.

6. The system according to claim 5, wherein: The range selection module includes a region correspondence unit and an ultra-low warning unit; The region correspondence unit is used to automatically match the corresponding grid demand storage threshold according to the standard grid demand data of different range regions; The ultra-low warning unit is used to receive the grid demand warning threshold of the corresponding range region in real time.

7. The system according to claim 6, characterized in that: The power storage synchronization includes an execution selection unit, a range matching unit, and a real-time tracking unit; The execution selection unit is used to select the photovoltaic power consumption and photovoltaic energy storage power of the corresponding range region in real time according to the grid demand storage threshold and the grid demand warning threshold of the corresponding range region at the current moment. The selection method combines the standard grid demand data of different range regions. Specifically: Step 1: Calculate the difference between the grid demand storage threshold and the standard grid demand data of the corresponding range region. If the difference result is greater than 0, the photovoltaic power value exceeding the grid demand storage threshold by 100 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power value with the difference result greater than 0 and less than 100 volt-amperes is automatically input into the photovoltaic power consumption device; Step 2: Calculate the difference between the grid demand warning threshold and the standard grid demand data of the corresponding range region. If the difference result is greater than 0, the photovoltaic power value exceeding the grid demand warning threshold by 50 volt-amperes is automatically input into the photovoltaic energy storage device, and the photovoltaic power value with the difference result greater than 0 and less than 50 volt-amperes is automatically input into the photovoltaic power consumption device; Step 3: Calculate the difference between the photovoltaic power value of the corresponding range region and the standard grid demand data. If the difference is greater than or equal to 100 volt-amperes of the photovoltaic power value, it is automatically input into the photovoltaic energy storage device, and the photovoltaic power consumption and energy storage are synchronized according to different range regions; The range matching unit is used to automatically perform a power transmission operation on the range region that issues a grid demand warning when the photovoltaic power value of one of the range regions exceeds the standard grid demand data by 1000 volt-amperes; The real-time tracking unit is used to real-time track the synchronization execution result of the photovoltaic power consumption and energy storage at the current moment through a data tracker.

8. The system according to claim 1, wherein: The intelligent adjustment end includes a data receiving module, a power prediction module, an error calculation module, and an intelligent adjustment module; The data receiving module is used to receive the synchronization execution result of the photovoltaic power consumption and energy storage at the current moment in real time through a data receiver; The power prediction module is used to predict the grid demand anomaly of the corresponding range region in real time through the photovoltaic energy storage power at the current moment. The prediction method is as follows: Taking one week as a cycle, predict the grid demand anomaly of the corresponding range region according to the difference results between the photovoltaic power values and the standard grid demand data of three cycles. If the average value of the difference results of the three cycles exceeds the standard grid demand data, it is judged that the grid demand of the corresponding range region is normal. Otherwise, it is judged that the grid demand of the corresponding range region is abnormal.

9. The system according to claim 8, wherein: The error calculation module is used to calculate the power deviation of the electric energy converted by multiple photovoltaic panels at the current moment in real time. The calculation formula is as follows: ； Where, U is the effective value of the electric energy of multiple photovoltaic panels, N is the number of sampling points at different times, and UK is the instantaneous sampling value of the electric energy of multiple photovoltaic panels; By comparing and calculating, the power deviation of the electric energy of each base station is obtained. The calculation formula is: ； Wherein, D represents the power deviation, S represents the backup power in the battery, and P represents the minimum power consumption threshold; Taking one hour as a cycle, calculate the average value of the power deviation for three cycles. If the power deviations of the electric energy converted by multiple photovoltaic panels at the current moment are all less than or equal to the average value of the power deviation, it is predicted that there is no power consumption deviation in the power grid demand in the corresponding range area of the power value. If the power deviations of the electric energy converted by multiple photovoltaic panels at the current moment are all greater than the average value of the power deviation, it is predicted that there is a power consumption deviation in the power grid demand in the corresponding range area of the power value; The intelligent adjustment module includes a power consumption adjustment unit, an energy storage adjustment unit, and an adjustment prediction unit; The power consumption adjustment unit is used to, according to the calculated power deviation, if the power deviation ≥ 0, perform a progressive increase adjustment on the storage of the corresponding value of the electric energy stored by the photovoltaic panel. If the power deviation < 0, perform a decreasing energy storage release adjustment on the electric energy stored by the photovoltaic panel; The energy storage adjustment unit is used to adjust the photovoltaic energy storage power in real time according to the power deviation; The adjustment prediction unit is used to calculate the power grid power consumption duration in the corresponding range area of the photovoltaic energy storage system at the current moment in real time according to the photovoltaic energy storage power. The calculation formula is as follows: Power grid power consumption duration in the corresponding range area = total power consumption / electrical appliance power; If the power grid power consumption duration in the corresponding range area exceeds the historical power grid power consumption duration by 100 hours, it indicates that the adjustment of the photovoltaic energy storage power is effective. Otherwise, it is ineffective. If the power grid power consumption duration in the corresponding range area is less than the historical power grid power consumption duration, the system is reported to issue a voice alarm.

10. A photovoltaic energy storage method, characterized in that, It includes the following steps: Step 1: Configure the IP address information of the remote control area server for the photovoltaic energy storage; Step 2: Enter the real-time tracking end. By detecting the converted electric energy value of the photovoltaic solar energy in real time and judging in real time whether the photovoltaic electric energy value meets the standard according to the historical power grid data, and timely judging whether the converted electric energy value of the photovoltaic is abnormal. If it is abnormal, adjust the converted electric energy value in real time according to the power grid data at the current moment to ensure the normal supply of the power grid data; Step 3: Enter the energy storage monitoring end. By receiving the accumulated photovoltaic electric energy data at the current moment in real time and synchronously performing photovoltaic power consumption and energy storage according to the actual power grid demand; through the execution selection unit and the range matching unit, realize the synchronous execution of photovoltaic power consumption and electricity storage selectively in multiple ranges; Step 4: Enter the intelligent adjustment end. Receive the information data of the synchronous execution in real time and predict in real time whether there is a power deviation in the power value according to the synchronous execution result. If there is a power deviation, adjust the storage and release of the photovoltaic energy storage in real time.

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