Sun-tracking type solar energy storage device and method thereof

Abstract

The invention discloses a sun-tracking type solar energy storage device and method, and relates to the technical field of solar energy storage, and the device comprises the following components: a sensing detection module, a control processing module, an angle adjustment module, a solar energy conversion module, a thermoelectric power generation module and an energy storage module. Environmental information such as geographic latitude, season and illumination intensity is accurately acquired through the sensing detection module, the control processing module is combined with a preset algorithm and a database, a sun tracking strategy is dynamically adjusted in real time, and the angle adjusting module is driven to accurately control the angle and speed of the solar cell panel, so that the solar cell panel is always kept at the optimal receiving angle; the defect that a traditional fixed sun tracking algorithm cannot adapt to complex environment changes is effectively overcome, the solar energy capturing efficiency is remarkably improved, and it is ensured that solar energy resources can be obtained to the maximum extent under different environment conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of solar energy storage, and in particular to a sun-chasing solar energy storage device and method thereof. Background Art

[0002] In the field of solar energy utilization, solar energy storage devices, as key technical equipment, undertake the important task of efficiently capturing solar energy, converting it into electrical energy and storing it. Their performance is directly related to the utilization efficiency and actual application effect of solar energy. Therefore, how to improve the performance of solar energy storage devices and increase solar energy capture efficiency and energy utilization rate has become a core hot spot and key topic in the current field of solar technology research.

[0003] Although existing sun-tracking solar energy storage devices have achieved sun tracking to a certain extent, they have exposed many problems that need to be solved in actual applications. Most traditional sun-tracking devices use a fixed sun-tracking mode, which is difficult to make accurate and dynamic adjustments based on environmental factors such as different geographical latitudes, seasonal changes, and complex and changeable weather conditions. Due to the significant differences in the sun's trajectory in different geographical latitudes, seasonal changes cause the solar altitude angle and illumination duration to change continuously, and weather conditions will also have a direct impact on solar energy capture efficiency. The fixed sun-tracking mode cannot fully adapt to these changes, so that the solar panels cannot always be at the optimal receiving angle, resulting in low solar energy capture efficiency. In addition, solar panels generate a lot of heat during operation, and traditional devices fail to effectively utilize this heat, resulting in this part of energy being wasted, further reducing the overall energy utilization rate of solar energy and limiting the performance improvement and widespread application of solar energy storage devices. Summary of the Invention

[0004] The purpose of the present invention is to make up for the shortcomings of the existing technology and provide a sun-tracking solar energy storage device and method thereof, which can obtain multi-dimensional environmental information such as geographical latitude, season, light intensity, solar panel temperature and ambient temperature in real time through the sensing detection module, and provide accurate data support for the control processing module. Based on these data, the control processing module combines the preset algorithm and database to intelligently control the angle adjustment module to adjust the sun-tracking strategy, thereby achieving precise adjustment of the angle and speed of the solar panel, ensuring that the solar panel can always track the position of the sun in real time and accurately, thereby significantly improving the solar energy capture efficiency. At the same time, the integrated thermoelectric power generation module can make full use of the heat generated by the solar panel and the temperature difference between the surrounding environment to generate electricity, converting the originally wasted heat energy into electrical energy, realizing efficient and comprehensive utilization of energy, and further improving energy utilization. In addition, the energy storage module reasonably stores and manages the electrical energy generated by the solar conversion module and the thermoelectric power generation module to ensure a stable supply of electrical energy, effectively overcoming the shortcomings of traditional sun-tracking solar energy storage devices, and providing a new solution for the efficient utilization of solar energy, with broad application prospects and significant economic value.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: On the one hand, a sun-chasing solar energy storage device includes the following components: a sensing detection module, a control processing module, an angle adjustment module, a solar energy conversion module, a thermoelectric power generation module and an energy storage module; The sensing detection module includes a geographic latitude sensor, a season sensor, a light intensity sensor, a temperature sensor and an ambient temperature sensor; The control processing module receives the detection data transmitted by the sensing detection module, controls the angle adjustment module to adjust the sun tracking strategy based on the geographical latitude, seasonal changes and weather conditions of different regions, controls the operation of the solar energy conversion module and the thermoelectric power generation module, and manages the storage of electrical energy by the energy storage module; The angle adjustment module consists of an angle adjustment mechanism and a speed adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the solar panel to adapt to different solar altitude angles. The speed adjustment mechanism is used to adjust the operating speed of the angle adjustment mechanism. The angle and speed of the solar panel are adjusted according to the instructions of the control processing module. The solar energy conversion module is composed of solar panels and is used to convert received solar energy into electrical energy; The thermoelectric power generation module utilizes the temperature difference between the heat generated by the solar panel during operation and the surrounding environment, converts the heat energy into electrical energy through the thermoelectric power generation material, and realizes the utilization of the waste heat of the solar panel; The energy storage module is used to store the electric energy generated by the solar energy conversion module and the thermoelectric power generation module.

[0006] In another aspect, a sun-tracking solar energy storage method is provided, the method comprising the following components: Environmental data collection: The sensor detection module detects the geographical latitude, current season, light intensity, solar panel temperature and ambient temperature of the area where the device is located, and transmits the collected data to the control processing module after pre-processing; Data processing and decision-making: The control processing module receives pre-processed sensor data, retrieves relevant parameters from the database, and determines the optimal tracking angle, speed, and operating power of the thermoelectric power generation module through logical judgment and numerical calculation. Angle and speed adjustment: The control processing module sends the optimal sun tracking angle and speed instructions to the angle adjustment module. The speed adjustment mechanism adjusts the speed of the drive motor accordingly, driving the angle adjustment mechanism to adjust the angle of the solar panel according to the instructions. At the same time, the angle information is fed back in real time for the control processing module to monitor and fine-tune. Solar power generation: Solar panels are angled to receive solar radiation at the optimal angle, which is collected and transmitted to the energy storage module through electrodes. The generated power is estimated based on the effective area of the panel, light intensity, photoelectric conversion efficiency, and light stability. Thermoelectric power generation: The hot end of the thermoelectric power generation module contacts the solar panel to absorb heat, while the cold end exchanges heat with the environment to form a temperature difference. The internal thermoelectric power generation material generates an electromotive force based on the Seebeck effect. The control and processing module adjusts the power generation according to the charge state of the energy storage module, temperature difference and environmental factors. The generated electrical energy is processed and transmitted to the energy storage module. Power storage management: The energy storage module processes the power from the solar energy conversion module and the thermoelectric power generation module through the charging management circuit, and monitors the battery power status in real time and feeds it back to the control processing module.

[0007] Furthermore, in the data processing and decision-making step, the current optimal sun tracking angle, speed, and operating power of the thermoelectric power generation module are determined through logical judgment and numerical calculation. The power calculated by the sun tracking angle is: ,in, is the currently calculated optimal sun tracking angle, It is the initial sun tracking angle based on the device default settings or the basic model. 、 、 are the weight coefficients of geographical latitude, season, and light intensity for adjusting the sun tracking angle, It's about geographical latitude The function reflects the influence of geographical latitude on the sun tracking angle. The higher the geographical latitude, the greater the influence of the function value on the angle adjustment. It's about the season The solar altitude angle varies in different seasons. This function adjusts the angle accordingly based on seasonal information. It's about light intensity When the light intensity is strong or weak, this function is used to fine-tune the angle to obtain the best solar energy reception effect. The sun tracking speed calculation formula is: ,in, is the currently calculated optimal sun-chasing speed, is the initial sun tracking speed based on the device default settings or the basic model, 、 、 are the weight coefficients of geographic latitude, season, and light intensity for adjusting the sun-tracking speed, It is a function of geographic latitude, reflecting the effect of geographic latitude on the speed of sun tracking. It's about the season function, It is a function of light intensity, and its operating power is calculated as follows: ,in, is the operating power of the thermoelectric power generation module, is a coefficient related to the material and structure of the thermoelectric power generation module, It is the difference between the temperature of the solar panel and the ambient temperature, and is the key factor in generating thermoelectric power. It is a function of the state of charge of the energy storage module. The value range is 0 to 1. It is the comprehensive environmental impact coefficient, which takes into account the impact of environmental factors such as ambient temperature, humidity, and wind speed on thermoelectric power generation, and its value range is 0 to 1.

[0008] Furthermore, the It's about geographical latitude The function is calculated as follows: This function represents the effect of geographic latitude on the sun-tracking angle. Taking 30 degrees latitude as the benchmark, when the latitude is higher than 30 degrees, as the latitude increases, the function value becomes positive, causing the sun-tracking angle to increase. When the latitude is lower than 30 degrees, as the latitude decreases, the function value becomes negative, causing the sun-tracking angle to decrease. It's about the season Function, suppose a year is divided into four seasons, spring is 1, summer is 2, autumn is 3, winter is 4, then The function is based on season 2.5. In summer, the function value is positive, which increases the sun-tracking angle. In winter, the function value is negative, which decreases the sun-tracking angle. In spring and autumn, the function value is close to 0, which has little effect on the sun-tracking angle. It's about light intensity function, assuming the standard light intensity Lux, then When the light intensity is greater than the standard light intensity, the function value is positive, which increases the sun-tracking angle. When the light intensity is less than the standard light intensity, the function value is negative, which decreases the sun-tracking angle. When the light intensity is 0, the function value is 0, which does not affect the sun-tracking angle. Similarly, we can conclude , and .

[0009] Furthermore, the It is a function of the state of charge of the energy storage module, and its calculation formula is: , when the energy storage module is charged When it is less than or equal to 0.5, Increases, the function value decreases, when When it is greater than 0.5, As increases, the function value decreases.

[0010] Furthermore, in the solar power generation step, the solar panel adjusted by the angle adjustment module faces the sun at an optimal angle to receive solar radiation. The photovoltaic material inside the solar panel uses the photoelectric effect to convert the received photon energy into electron-hole pairs. The electron-hole pairs are separated under the action of the electric field inside the photovoltaic material and move toward the positive and negative poles of the panel respectively, forming an electric current. The generated current is collected by leading electrodes at the positive and negative poles of the solar panel and transmitted to the energy storage module through the wires in the circuit. The generated power is calculated based on the effective area of the panel, light intensity, photoelectric conversion efficiency and light stability.

[0011] Furthermore, in the solar power generation step, the power generation power is calculated based on the effective area of the solar panel, light intensity, photoelectric conversion efficiency and light stability, and the calculation formula is: ,in, is the power generated by the solar panel, is the effective area of the solar panel, is the light intensity per unit area, is the photoelectric conversion efficiency of the solar panel, It is the illumination stability coefficient, ranging from 0.8 to 1.2. The more stable the illumination, the closer the coefficient is to 1.

[0012] Furthermore, in the thermoelectric power generation step, the hot end of the thermoelectric power generation module contacts the surface of the solar panel, absorbs the heat generated by the solar panel when it is working, and increases the temperature of the hot end, while the cold end is exposed to the surrounding environment, exchanges heat with the environment, and maintains a lower temperature, thereby forming a temperature difference between the hot end and the cold end. When there is a temperature difference between the hot end and the cold end, according to the Seebeck effect, an electromotive force is generated at both ends of the thermoelectric power generation material. According to the calculated operating power parameters of the thermoelectric power generation module, the working state of the thermoelectric power generation module is adjusted. At the same time, the difference between the temperature of the solar panel and the ambient temperature, as well as the power status information of the energy storage module are monitored in real time, and the operating parameters of the thermoelectric power generation module are dynamically adjusted. The generated electric energy is processed by the circuit and then transmitted to the energy storage module for storage.

[0013] Furthermore, in the thermoelectric power generation step, the operating parameters of the thermoelectric power generation module are dynamically adjusted, and the adjustment formula is: ,in, To adjust the actual power generated by the temperature difference power generation module, is the coefficient related to the material and structure of the thermoelectric power generation module, is the difference between the solar panel temperature and the ambient temperature, The state of charge of the energy storage module ranges from 0 to 1. This is a correction factor that takes into account the impact of other factors on power generation, and its value range is 0 to 1. is the time correction factor.

[0014] Compared with the existing technology, this sun-chasing solar energy storage device and method have the following beneficial effects: 1. The present invention uses a sensing detection module to accurately obtain environmental information such as geographic latitude, season, and light intensity. The control processing module combines a preset algorithm with a database to dynamically adjust the sun-tracking strategy in real time. The driving angle adjustment module accurately controls the angle and speed of the solar panel, so that the panel always maintains the optimal receiving angle. This effectively overcomes the defect of traditional fixed sun-tracking algorithms that cannot adapt to complex environmental changes, significantly improves the efficiency of solar energy capture, and ensures that solar energy resources can be obtained to the greatest extent under different environmental conditions.

[0015] 2. The present invention integrates a thermoelectric power generation module to generate electricity using the temperature difference between the heat generated by the solar panel and the surrounding environment, converting the heat energy that would otherwise be wasted into electrical energy. Together with the solar energy conversion module, the module supplies power to the energy storage module. This not only fully utilizes the energy brought by solar energy, significantly improving energy utilization, but also increases the total power generation of the energy storage device, significantly improving the overall performance of the energy storage device, and providing an innovative solution for the efficient use of clean energy.

[0016] Other advantages, objects and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 This is a schematic diagram of the structure of a sun-chasing solar energy storage device; Figure 2 The figure is a flow chart of a sun-chasing solar energy storage method. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] Example 1 The geographic latitude sensor, season sensor, light intensity sensor, temperature sensor and ambient temperature sensor together constitute the sensing detection module, such as Figure 1 As shown, the geographic latitude sensor is installed on the top of the device and accurately detects the geographic latitude information of the area where the device is located by receiving satellite signals. Its output end is connected to the input end of the control processing module, and the detected geographic latitude data is transmitted to the control processing module in the form of an electrical signal. The season sensor is placed on the outside of the device and can judge the current season by combining multiple factors such as time information, ambient temperature change trends, and sunshine duration. It also transmits season data to the control processing module in the form of an electrical signal. The light intensity sensor uses the principle of photoelectric conversion to convert the received light radiation intensity into an electrical signal. Its output end is connected to the control processing module and transmits the light intensity data to the control processing module in real time. The temperature sensor uses a thermistor, which is tightly attached to the surface of the solar panel, to sense the temperature of the solar panel in real time and transmit the temperature data to the control processing module. The ambient temperature sensor is installed at a suitable position around the device, detects the temperature of the surrounding environment, and transmits the data to the control processing module. The data transmission lines of these sensors have been anti-interference processed to ensure accurate data transmission.

[0021] The control and processing module is the core of the device. Its input end is connected to the output end of each sensor of the sensing detection module. It receives data such as geographical latitude, season, light intensity, solar panel temperature and ambient temperature from the sensing detection module. The control and processing module stores a large number of environmental parameters and algorithms inside. It can analyze and process the received data, refer to the light intensity, solar panel temperature and ambient temperature data, analyze the current light and temperature environment conditions, and calculate the optimal sun tracking angle and speed.

[0022] The output end of the control processing module is connected to the angle adjustment module, solar energy conversion module, thermoelectric power generation module and energy storage module respectively. It sends control instructions to the angle adjustment module to control the operation of the angle adjustment mechanism and the speed adjustment mechanism, sends working instructions to the solar energy conversion module to enable it to convert solar energy at a suitable angle, sends operating power control instructions to the thermoelectric power generation module, adjusts the working state of the thermoelectric power generation module according to the charge state of the energy storage module and the ambient temperature difference, manages the charging and discharging process of the energy storage module, and ensures the effective storage and reasonable distribution of electric energy.

[0023] The angle adjustment module consists of an angle adjustment mechanism and a speed adjustment mechanism. The angle adjustment mechanism is mechanically connected to the solar panel of the solar energy conversion module, and the angle of the solar panel is adjusted by mechanical devices such as gears and screws. The speed adjustment mechanism is connected to the angle adjustment mechanism and is driven by a motor to adjust the operating speed of the angle adjustment mechanism. The control processing module sends sun-tracking angle and speed instructions to the angle adjustment module. The speed adjustment mechanism adjusts the speed of the drive motor according to the instructions, and drives the angle adjustment mechanism to operate through the transmission mechanism. The angle adjustment mechanism uses mechanical devices to accurately adjust the angle of the solar panel according to the sun-tracking angle parameters in the instructions. An angle sensor is provided inside the angle adjustment mechanism to monitor the actual angle of the solar panel in real time and feed back the angle information to the control processing module. The control processing module monitors and fine-tunes the angle adjustment process in real time based on the feedback information to ensure that the solar panel can accurately track the position of the sun.

[0024] The solar energy conversion module is mainly composed of solar panels. The solar panels are installed on the angle adjustment mechanism and can change their angles as the angle adjustment mechanism is adjusted. The solar panels use the photovoltaic effect to convert the received solar energy into electrical energy.

[0025] When the solar panel is adjusted to the appropriate angle, sunlight shines on the panel, and the photovoltaic material generates electron-hole pairs. The electron-hole pairs separate under the action of the electric field and form an electric current. The generated current is transmitted to the energy storage module through the wire for storage. At the same time, the control processing module monitors and adjusts the working status of the solar energy conversion module according to information such as light intensity and panel temperature to improve the conversion efficiency of solar energy.

[0026] The thermoelectric power generation module is installed near the solar panel of the solar energy conversion module. Its hot end is in close contact with the solar panel and can absorb the heat generated by the solar panel when it is working. The cold end is exposed to the surrounding environment. The thermoelectric power generation module uses thermoelectric power generation materials inside. When there is a temperature difference between the hot end and the cold end, according to the Seebeck effect, an electromotive force will be generated at both ends of the thermoelectric power generation material. The control processing module calculates the operating power of the thermoelectric power generation module according to the charge state of the energy storage module, the temperature difference between the solar panel and the surrounding environment, and other environmental factors, and sends control instructions to the thermoelectric power generation module. The thermoelectric power generation module adjusts its working state according to the instructions, converts thermal energy into electrical energy, and transmits the generated electrical energy to the energy storage module for storage, thereby making full use of the waste heat generated by the solar panel and improving energy utilization.

[0027] During the operation of the device, the sensing detection module continuously collects data such as geographical latitude, season, light intensity, solar panel temperature and ambient temperature, and transmits it to the control processing module. The control processing module analyzes and processes the data, calculates the optimal sun-tracking angle and speed, as well as the operating power of the thermoelectric power generation module. The angle adjustment module adjusts the angle and speed of the solar panel according to the instructions of the control processing module, so that the solar panel can accurately track the position of the sun and improve the efficiency of solar energy capture. At the adjusted angle, the solar energy conversion module converts the received solar energy into electrical energy and transmits it to the energy storage module for storage. The thermoelectric power generation module uses the temperature difference between the heat generated by the solar panel and the surrounding environment to convert thermal energy into electrical energy, which is also transmitted to the energy storage module for storage. Under the management of the control processing module, the energy storage module stores the electrical energy transmitted by the solar energy conversion module and the thermoelectric power generation module, and provides a stable power supply for the equipment according to the instructions of the control processing module.

[0028] Through the coordinated work of the above modules, the Sun Chasing solar energy storage device can automatically adjust its working state according to different environmental conditions, achieving efficient capture, conversion and storage of solar energy.

[0029] Example 2 A sun-chasing solar energy storage device was installed on the roof of a large commercial building located in the city center. The commercial building has multiple functional areas such as shopping malls and office buildings, and has a large demand for electricity.

[0030] The geographic latitude sensor in the sensing detection module adopts high-precision positioning technology. By receiving satellite signals, it accurately detects that the geographic latitude of the city where the device is located is 35 degrees north latitude, and converts the data into an electrical signal and transmits it to the control processing module. The season sensor determines that it is summer by comprehensively monitoring multiple factors such as time information, ambient temperature change trends, and sunshine duration. The light intensity sensor uses the photoelectric conversion principle to convert the received light radiation intensity into a corresponding electrical signal. It detects that the current light intensity is strong and also transmits the electrical signal to the control processing module. The temperature sensor uses a thermistor, which is in direct contact with the solar panel, and senses the temperature of the solar panel in real time. It measures that the current panel temperature is high and transmits the temperature data to the control processing module. The ambient temperature sensor is installed in a position away from the solar panel and can accurately reflect the ambient temperature. It detects that the ambient temperature is also high and transmits the ambient temperature data to the control processing module. Figure 2 As shown, all collected data are encoded and transmitted according to specific communication protocols and data formats to ensure that the control processing module can accurately receive and identify them.

[0031] After receiving various types of data transmitted by the sensing detection module, the control processing module first filters the data to remove noise interference, and then performs normalization processing to convert data of different types and ranges into a unified numerical range. Based on the received geographic latitude data and seasonal data, combined with the built-in database, it determines the current approximate position and trajectory of the sun in the sky, and refers to the light intensity, solar panel temperature and ambient temperature data to analyze the current light and temperature environment conditions.

[0032] Calculate the optimal sun tracking angle When using the formula ,in, is the initial sun tracking angle based on the device default settings or the basic model, 、 、 The weight coefficient is determined by analyzing a large amount of experimental data and optimizing the algorithm. It is used to reflect the relative importance of geographical latitude, season, and light intensity to the adjustment of the sun tracking angle. The calculation formula is (latitude is the geographic latitude value), which reflects the influence of geographic latitude on the sun tracking angle. When the latitude is higher than 30 degrees, as the latitude increases, the function value becomes positive, which increases the sun tracking angle. When the latitude is lower than 30 degrees, the function value becomes negative, which decreases the sun tracking angle. The calculation formula is ( is the seasonal value, 1 for spring, 2 for summer, 3 for autumn, and 4 for winter). The solar altitude angle varies in different seasons. This function adjusts the angle accordingly based on seasonal information. In summer, the function value is positive, which increases the sun tracking angle. In winter, the function value is negative, which decreases the sun tracking angle. The calculation formula is ( is the light intensity value, is the standard light intensity value). When the light intensity is strong or weak, this function is used to fine-tune the angle to obtain the best solar energy reception effect. When the light intensity is greater than the standard light intensity, the function value is positive, which increases the sun tracking angle. When it is less than the standard light intensity, the function value is negative, which decreases the sun tracking angle.

[0033] Calculate the optimal sun-chasing speed When using the formula ,in, is the initial sun tracking speed based on the device default settings or the basic model, 、 、 It is a weight coefficient determined through experiments and data analysis, which is used to reflect the relative importance of geographical latitude, season, and light intensity on the adjustment of the sun tracking speed. The calculation formula is , reflects the effect of geographic latitude on the sun-chasing speed. Taking 30 degrees latitude as the benchmark, when the latitude is higher than 30 degrees, as the latitude increases, the function value becomes positive, which increases the sun-chasing speed. When the latitude is lower than 30 degrees, the function value becomes negative, which decreases the sun-chasing speed. The calculation formula is , taking season 2.5 (roughly the middle state between spring and autumn) as the benchmark, the function value is positive in summer, which increases the speed of chasing the sun, and the function value is negative in winter, which decreases the speed of chasing the sun. The calculation formula is According to the relationship between light intensity and standard light intensity, the sun-chasing speed is adjusted. When the light intensity is greater than the standard light intensity, the function value is positive, which increases the sun-chasing speed. When it is less than the standard light intensity, the function value is negative, which reduces the sun-chasing speed.

[0034] Calculate the operating power of the thermoelectric power generation module When using the formula in, It is a coefficient related to the module material and structure determined by performance testing of the thermoelectric power generation module, reflecting its power generation efficiency characteristics. is the difference between the solar panel temperature and the ambient temperature, function The calculation formula is ( is the charge state of the energy storage module, with a value range of 0 to 1). When the energy storage module has a low charge, the function value is large to appropriately increase the power generation. When the charge is high, the function value is small to reduce the power generation to avoid overcharging. Through the above calculations, the control processing module determines the current optimal sun tracking angle, speed, and operating power of the thermoelectric power generation module.

[0035] After the speed adjustment mechanism in the angle adjustment module receives the speed instruction sent by the control processing module, it adjusts the speed of the drive motor according to the speed parameters in the instruction. The motor is connected to the angle adjustment mechanism through a transmission mechanism. The change in motor speed drives the change in the operating speed of the transmission mechanism, thereby realizing the control of the operating speed of the angle adjustment mechanism. The angle adjustment mechanism accurately adjusts the angle of the solar panel through mechanical devices such as gears and screws according to the sun-tracking angle parameters calculated by the control processing module. The angle sensor inside the angle adjustment mechanism monitors the actual angle of the solar panel in real time and feeds back the angle information to the control processing module. The control processing module monitors and fine-tunes the angle adjustment process in real time based on the feedback angle information to ensure that the solar panel can be accurately adjusted to the calculated sun-tracking angle and receive solar radiation at the optimal angle.

[0036] After the solar panel is adjusted by the angle adjustment module, it faces the sun at the optimal angle to receive solar radiation. The photovoltaic material inside the solar panel uses the photoelectric effect to convert the received photon energy into electron-hole pairs. The electron-hole pairs are separated under the action of the electric field inside the photovoltaic material and move toward the positive and negative poles of the solar panel respectively, forming an electric current. The generated current is collected by the lead-out electrodes at the positive and negative poles of the solar panel and transmitted to the energy storage module through the wires in the circuit. The generated power is calculated based on the effective area of the solar panel, light intensity, photoelectric conversion efficiency and light stability. The calculation formula is: ,in, is the power generated by the solar panel, is the effective area of the solar panel, is the light intensity per unit area, is the photoelectric conversion efficiency of the solar panel, It is the illumination stability coefficient, ranging from 0.8 to 1.2. The more stable the illumination, the closer the coefficient is to 1.

[0037] The thermoelectric power generation module is closely installed near the solar panel, and its hot end is in good contact with the surface of the solar panel. It can effectively absorb the heat generated by the solar panel when it is working, so that the temperature of the hot end increases, and the cold end is exposed to the surrounding environment, exchanging heat with the environment, maintaining a relatively low temperature, thereby forming a temperature difference between the hot end and the cold end. Semiconductor thermoelectric power generation materials are used inside the thermoelectric power generation module. When there is a temperature difference between the hot end and the cold end, an electromotive force is generated at both ends of the thermoelectric power generation material according to the Seebeck effect. By reasonably designing the circuit structure of the thermoelectric power generation module, multiple thermoelectric power generation units are connected in series or in parallel to increase the output voltage and current. The control processing module controls the working state of the thermoelectric power generation module by adjusting the load resistance and other methods according to the calculated operating power parameters of the thermoelectric power generation module. It monitors the difference between the temperature of the solar panel and the ambient temperature in real time, as well as the power status of the energy storage module and other information, and dynamically adjusts the operating parameters of the thermoelectric power generation module to ensure that thermal energy can be efficiently converted into electrical energy and reasonably stored. The adjustment formula is: ,in, To adjust the actual power generated by the temperature difference power generation module, is the coefficient related to the material and structure of the thermoelectric power generation module, is the difference between the solar panel temperature and the ambient temperature, The state of charge of the energy storage module ranges from 0 to 1. This is a correction factor that takes into account the impact of other factors on power generation, and its value range is 0 to 1. It is the time correction coefficient. The generated electric energy is processed by the circuit and then transmitted to the energy storage module for storage, thereby increasing the total power generation of the energy storage device.

[0038] The energy storage module uses high-performance lithium batteries with large power storage capacity and good charge and discharge performance. The energy storage module is equipped with a charging management circuit and a battery status monitoring circuit. When the electric energy generated by the solar energy conversion module and the thermoelectric power generation module is transmitted to the energy storage module, the charging management circuit processes the input electric energy and charges the battery using appropriate charging strategies such as constant current charging and constant voltage charging based on factors such as the battery's health status, ambient temperature and state of charge. The battery status monitoring circuit monitors the remaining power, charge and discharge current, voltage and other parameters of the battery in the energy storage module in real time, and feeds this information back to the control processing module.

[0039] When electricity is used in shopping malls, office buildings and other areas within commercial buildings, the control and processing module controls the energy storage module to discharge according to the needs of the electrical equipment and the power status of the energy storage module, providing a stable power supply for lighting, air conditioning, elevators and other equipment, effectively reducing the commercial building's dependence on the urban power grid, achieving the goal of energy conservation and emission reduction, and at the same time improving the stability and reliability of the commercial building's energy supply.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sun-chasing solar energy storage device, characterized in that: The device includes the following components: a sensing detection module, a control processing module, an angle adjustment module, a solar energy conversion module, a temperature difference power generation module and an energy storage module; The sensing detection module includes a geographic latitude sensor, a season sensor, a light intensity sensor, a temperature sensor and an ambient temperature sensor; The control processing module receives the detection data transmitted by the sensing detection module, controls the angle adjustment module to adjust the sun tracking strategy based on the geographical latitude, seasonal changes and weather conditions of different regions, controls the operation of the solar energy conversion module and the thermoelectric power generation module, and manages the storage of electrical energy by the energy storage module; The angle adjustment module consists of an angle adjustment mechanism and a speed adjustment mechanism. The angle adjustment mechanism is used to adjust the angle of the solar panel to adapt to different solar altitude angles. The speed adjustment mechanism is used to adjust the operating speed of the angle adjustment mechanism. The angle and speed of the solar panel are adjusted according to the instructions of the control processing module. The solar energy conversion module is composed of solar panels and is used to convert received solar energy into electrical energy; The thermoelectric power generation module utilizes the temperature difference between the heat generated by the solar panel during operation and the surrounding environment, converts the heat energy into electrical energy through the thermoelectric power generation material, and realizes the utilization of the waste heat of the solar panel; The energy storage module is used to store the electric energy generated by the solar energy conversion module and the thermoelectric power generation module.

2. A sun-tracking solar energy storage method, which is applicable to the sun-tracking solar energy storage device according to claim 1, characterized in that: The method comprises the following components: Environmental data collection: The sensor detection module detects the geographical latitude, current season, light intensity, solar panel temperature and ambient temperature of the area where the device is located, and transmits the collected data to the control processing module after pre-processing; Data processing and decision-making: The control processing module receives pre-processed sensor data, retrieves relevant parameters from the database, and determines the optimal tracking angle, speed, and operating power of the thermoelectric power generation module through logical judgment and numerical calculation. Angle and speed adjustment: The control processing module sends the optimal sun tracking angle and speed instructions to the angle adjustment module. The speed adjustment mechanism adjusts the speed of the drive motor accordingly, driving the angle adjustment mechanism to adjust the angle of the solar panel according to the instructions. At the same time, the angle information is fed back in real time for the control processing module to monitor and fine-tune. Solar power generation: Solar panels are angled to receive solar radiation at the optimal angle, which is collected and transmitted to the energy storage module through electrodes. The generated power is estimated based on the effective area of the panel, light intensity, photoelectric conversion efficiency, and light stability. Thermoelectric power generation: The hot end of the thermoelectric power generation module contacts the solar panel to absorb heat, while the cold end exchanges heat with the environment to form a temperature difference. The internal thermoelectric power generation material generates an electromotive force based on the Seebeck effect. The control and processing module adjusts the power generation according to the charge state of the energy storage module, temperature difference and environmental factors. The generated electrical energy is processed and transmitted to the energy storage module. Power storage management: The energy storage module processes the power from the solar energy conversion module and the thermoelectric power generation module through the charging management circuit, and monitors the battery power status in real time and feeds back to the control processing module.

3. A sun-tracking solar energy storage device and method according to claim 2, characterized in that: In the data processing and decision-making steps, the optimal sun tracking angle, speed, and operating power of the thermoelectric power generation module are determined through logical judgment and numerical calculation. The power calculated by the sun tracking angle is: ,in, is the currently calculated optimal sun tracking angle, It is the initial sun tracking angle based on the device default settings or the basic model. 、 、 are the weight coefficients of geographical latitude, season, and light intensity for adjusting the sun tracking angle, It's about geographical latitude The function reflects the influence of geographical latitude on the sun tracking angle. The higher the geographical latitude, the greater the influence of the function value on the angle adjustment. It's about the season The solar altitude angle varies in different seasons. This function adjusts the angle accordingly based on seasonal information. It's about light intensity When the light intensity is strong or weak, this function is used to fine-tune the angle to obtain the best solar energy reception effect. The sun tracking speed calculation formula is: ,in, is the currently calculated optimal sun-chasing speed, It is the initial sun tracking speed based on the device default settings or the basic model. 、 、 are the weight coefficients of geographic latitude, season, and light intensity for adjusting the sun-tracking speed, It is a function of geographic latitude, reflecting the effect of geographic latitude on the speed of sun tracking. It's about the season function, It is a function of light intensity, and its operating power is calculated as follows: ,in, is the operating power of the thermoelectric power generation module, is a coefficient related to the material and structure of the thermoelectric power generation module, It is the difference between the temperature of the solar panel and the ambient temperature, and is the key factor in generating thermoelectric power. It is a function of the state of charge of the energy storage module. The value range is 0 to 1. It is the comprehensive environmental impact coefficient, which takes into account the impact of environmental factors such as ambient temperature, humidity, and wind speed on thermoelectric power generation, and its value range is 0 to 1.

4. A sun-tracking solar energy storage device and method according to claim 3, characterized in that: described It's about geographical latitude The function is calculated as follows: This function represents the effect of geographic latitude on the sun-tracking angle. Taking 30 degrees latitude as the benchmark, when the latitude is higher than 30 degrees, as the latitude increases, the function value becomes positive, causing the sun-tracking angle to increase. When the latitude is lower than 30 degrees, as the latitude decreases, the function value becomes negative, causing the sun-tracking angle to decrease. It's about the season Function, suppose a year is divided into four seasons, spring is 1, summer is 2, autumn is 3, winter is 4, then The function is based on season 2.

5. In summer, the function value is positive, which increases the sun-tracking angle. In winter, the function value is negative, which decreases the sun-tracking angle. In spring and autumn, the function value is close to 0, which has little effect on the sun-tracking angle. It's about light intensity function, assuming the standard light intensity Lux, then When the light intensity is greater than the standard light intensity, the function value is positive, which increases the sun-tracking angle. When the light intensity is less than the standard light intensity, the function value is negative, which decreases the sun-tracking angle. When the light intensity is 0, the function value is 0, which does not affect the sun-tracking angle. Similarly, we can conclude , and .

5. The sun-tracking solar energy storage method according to claim 3, characterized in that: described It is a function of the state of charge of the energy storage module, and its calculation formula is: , when the energy storage module is charged When it is less than or equal to 0.5, Increases, the function value decreases, when When it is greater than 0.5, As increases, the function value decreases.

6. The sun-tracking solar energy storage method according to claim 1, characterized in that: In the solar power generation step, the solar panel adjusted by the angle adjustment module faces the sun at an optimal angle to receive solar radiation. The photovoltaic material inside the solar panel uses the photoelectric effect to convert the received photon energy into electron-hole pairs. The electron-hole pairs are separated under the action of the electric field inside the photovoltaic material and move toward the positive and negative poles of the solar panel respectively, forming an electric current. The generated current is collected by the lead-out electrodes at the positive and negative poles of the solar panel and transmitted to the energy storage module through the wires in the circuit. The generated power is calculated based on the effective area of the solar panel, the light intensity, the photoelectric conversion efficiency and the light stability.

7. The sun-tracking solar energy storage method according to claim 6, characterized in that: In the solar power generation step, the power generation is calculated based on the effective area of the solar panel, light intensity, photoelectric conversion efficiency and light stability. The calculation formula is: ,in, is the power generated by the solar panel, is the effective area of the solar panel, is the light intensity per unit area, is the photoelectric conversion efficiency of the solar panel, It is the illumination stability coefficient, ranging from 0.8 to 1.

2. The more stable the illumination, the closer the coefficient is to 1.

8. The sun-tracking solar energy storage method according to claim 1, characterized in that: In the thermoelectric power generation step, the hot end of the thermoelectric power generation module contacts the surface of the solar panel, absorbs the heat generated by the solar panel when it is working, and increases the temperature of the hot end. The cold end is exposed to the surrounding environment, exchanges heat with the environment, and maintains a lower temperature, thereby forming a temperature difference between the hot end and the cold end. When there is a temperature difference between the hot end and the cold end, according to the Seebeck effect, an electromotive force is generated at both ends of the thermoelectric power generation material. According to the calculated operating power parameters of the thermoelectric power generation module, the working state of the thermoelectric power generation module is adjusted. At the same time, the difference between the temperature of the solar panel and the ambient temperature, as well as the power status information of the energy storage module are monitored in real time, and the operating parameters of the thermoelectric power generation module are dynamically adjusted. The generated electric energy is processed by the circuit and then transmitted to the energy storage module for storage.

9. The sun-tracking solar energy storage method according to claim 8, characterized in that: In the thermoelectric power generation step, the operating parameters of the thermoelectric power generation module are dynamically adjusted, and the adjustment formula is: ,in, To adjust the actual power generated by the temperature difference power generation module, is the coefficient related to the material and structure of the thermoelectric power generation module, is the difference between the solar panel temperature and the ambient temperature, The state of charge of the energy storage module ranges from 0 to 1. This is a correction factor that takes into account the impact of other factors on power generation, and its value range is 0 to 1. is the time correction factor.

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