Optical storage and charging integrated control method and system coupled with wide temperature range and thermal management

Abstract

The invention discloses a light storage and charging integrated control method and system coupled with a wide temperature range and thermal management, and the method comprises the steps: enabling a wide temperature range thermal management system to collect the environment temperature outside a box and the temperature inside the box of a storage battery energy storage system, and adjusting the working mode of the current wide temperature range thermal management system, the working power of the current wide-temperature-range thermal management system in the working mode is adjusted; the energy control module controls the working states of the first bidirectional voltage transformation module, the second bidirectional voltage transformation module, the bidirectional voltage transformation and isolation module, the inversion module and the unidirectional voltage transformation module according to the current working power of each module and the current corresponding electricity price time period; cooperative control of energy management and heat management can be achieved, the operation efficiency and stability of the system are improved, and the requirement for efficient and safe operation of the system in a wide-temperature-range environment is met.

Description

Technical Field

[0001] The present invention relates to the technical field of energy regulation and thermal management of photovoltaic storage and charging systems, and specifically to a photovoltaic storage and charging integrated control method and system coupling a wide temperature range with thermal management. Background Art

[0002] In the field of renewable energy, with the world's increasing attention to the energy crisis and the continuous enhancement of environmental awareness, photovoltaic power generation has become one of the most technologically mature and promising power generation methods among renewable energy sources because it is not restricted by energy resources, raw materials and application environment. The integrated photovoltaic storage and charging system organically combines photovoltaic power generation, energy storage devices and power facilities to achieve efficient energy scheduling and utilization, and has become an important direction for promoting energy transformation.

[0003] In actual application, the integrated photovoltaic, storage and charging system uses photovoltaic power generation to store electricity in energy storage batteries. When needed, the energy storage batteries supply electricity to charging piles and building users, industrial and commercial electrical equipment. Through the integrated photovoltaic, storage and charging system, solar energy, a clean energy, is transferred to the car's power battery for vehicle driving and use. According to demand, the integrated photovoltaic, storage, charging and discharging system can realize both grid-connected and off-grid operation modes; when the integrated photovoltaic, storage and charging system is connected to the power grid, in addition to receiving energy from photovoltaic solar panels, the energy storage battery is charged when the electricity price is low and discharged when the electricity price is high, which reduces the charging cost while shaving peaks and filling valleys, and also makes up for the shortcoming of discontinuous solar power generation. When the power grid is out of power, the off-grid operation mode can be used for emergency charging of new energy vehicles, and for use by building users, industrial and commercial power equipment. Since photovoltaic power generation cannot generate electricity at night and on rainy days, distributed photovoltaic storage power generation cannot continuously supply electricity to building users, industrial and commercial power equipment, especially charging piles and emergency power. In addition to self-generation and self-use of photovoltaic power generation and the supply of surplus power to the grid, there are many cases where the power grid is required to supply power to energy storage batteries, converters and energy storage to ensure continuous power supply to the converter system and other equipment.

[0004] At present, the integrated photovoltaic, storage and charging systems face challenges in wide temperature environments during operation. The system may frequently trigger the temperature protection mechanism under high or low temperature conditions, resulting in limited power output or system shutdown. Existing control strategies usually assume that the system operates within an ideal or narrow temperature range, ignoring the impact of the wide temperature range environment on the system. Although some integrated photovoltaic, storage and charging systems are equipped with thermal management systems, their control logic is usually relatively independent and passive. The start and stop of the thermal management system is based on simple temperature threshold triggers and fails to coordinate with the energy management strategy, resulting in reduced system energy efficiency and energy waste.

[0005] In order to avoid the decoupling of energy management and thermal management, which may lead to reduced system performance and reliability at extreme temperatures, resulting in a decrease in overall energy utilization efficiency, increased operating costs and potential safety hazards, technical personnel in this field have been seeking an integrated photovoltaic storage and charging control method that couples a wide temperature range with thermal management, so as to achieve coordinated control of energy management and thermal management, improve the system's operating efficiency and stability, and meet the system's needs for efficient and safe operation in a wide temperature range environment. Summary of the Invention

[0006] The purpose of the present invention is to provide an integrated photovoltaic storage and charging control method and system that couples a wide temperature range with thermal management, which can achieve coordinated control of energy management and thermal management, and provide effective protection for the integrated photovoltaic storage and charging system in a wide temperature range environment.

[0007] The invention is designed to achieve one of the above-mentioned purposes. The invention is characterized in that the invention comprises the following steps: S1: The wide temperature range thermal management system collects the external ambient temperature and the internal temperature of the battery energy storage system, compares the external ambient temperature with a preset temperature threshold, and adjusts the current operating mode of the wide temperature range thermal management system based on the comparison result; calculates the temperature difference between the external ambient temperature and the internal temperature, compares the calculated temperature difference with a preset temperature difference, and adjusts the operating power in the current operating mode of the wide temperature range thermal management system based on the comparison result; S2: The energy control module collects the current operating power of the photovoltaic power generation system, battery energy storage system, wide temperature range thermal management system, charging load system, supercapacitor energy storage system and AC power grid, and determines the current corresponding electricity price period based on the time-of-use electricity price mechanism. According to the current operating power of each module and the current corresponding electricity price period, the energy control module controls the working status of the first bidirectional transformation module, the second bidirectional transformation module, the bidirectional transformation and isolation module, the inverter module and the unidirectional transformation module.

[0008] Furthermore, the step S1 includes: S1.1: Compare whether the temperature outside the battery energy storage system is greater than a first preset temperature threshold. If the temperature outside the battery is greater than the first preset temperature threshold, execute step S1.2; otherwise, execute step S1.3; S1.2: The wide temperature range thermal management system performs heat dissipation according to the heat dissipation working mode; S1.3: The wide temperature range thermal management system performs heating according to the heating operation mode; Among them, step S1.2 specifically includes: S1.2.1: Compare the external temperature of the battery energy storage system to see if it is greater than a second preset temperature threshold. If so, proceed to step 1.2.2; otherwise, proceed to step 1.2.3. S1.2.2: Determine whether the difference between the external ambient temperature and the internal temperature of the box is greater than a first preset temperature difference. If so, the wide-temperature-range thermal management system dissipates heat at 75% of its power. Otherwise, the wide-temperature-range thermal management system dissipates heat at 100% of its power. S1.2.3: The wide temperature range thermal management system shall dissipate heat at 25% power. Step 1.3 specifically includes: S1.3.1: Compare the temperature outside the battery energy storage system to see if it is greater than a third preset temperature threshold. If so, proceed to step 1.3.2; otherwise, proceed to step 1.3.3. S1.3.2: The wide temperature range thermal management system shall be heated at 25% power. S1.3.3: Determine whether the difference between the ambient temperature outside the box and the temperature inside the box is greater than a second preset temperature difference. If the difference between the ambient temperature outside the box and the temperature inside the box is greater than the second preset temperature difference, the wide temperature range thermal management system performs heating at 100% power; otherwise, the wide temperature range thermal management system performs heating at 75% power.

[0009] Furthermore, the step S2 includes: S2.1: If the current electricity price is in a preset valley period, the energy control module controls the first bidirectional transformation module, the second bidirectional transformation module, the bidirectional transformation and isolation module, and the inverter module to be in an operating state; S2.2: If the current electricity price is in a preset low-price period, the energy control module controls the first bidirectional transformation module, the second bidirectional transformation module, the bidirectional transformation and isolation module, and the inverter module to be in an operating state; S2.3: If the current electricity price is within the preset flat period, the energy control module controls the first bidirectional transformation module, the second bidirectional transformation module, the bidirectional transformation and isolation module, the inverter module, and the unidirectional transformation module to be in an operating state; S2.4: If the current electricity price is in the preset peak period, the energy control module controls the first bidirectional transformation module, the second bidirectional transformation module, the bidirectional transformation and isolation module, the inverter module and the unidirectional transformation module to be in working state.

[0010] Furthermore, the step S2.1 further includes: determining the current operating power of the charging load system, If the working power of the current charging load system is not zero, the energy control module controls the AC power grid to supply power to the battery energy storage system, the supercapacitor energy storage system and the wide temperature range thermal management system; If the current operating power of the charging load system is zero, the energy control module controls the AC power grid to supply power to the battery energy storage system, the supercapacitor energy storage system, the wide temperature range thermal management system and the charging load system.

[0011] Furthermore, the step S2.2 further includes: determining the current operating power of the charging load system, If the current operating power of the charging load system is not zero, calculate the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system, as well as the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the charging load system, and compare the calculation results; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is equal to the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the charging load system, the energy control module controls the battery energy storage system and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system and the charging load system; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is greater than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the charging load system, the energy control module controls the battery energy storage system and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system, the charging load system and the AC power grid; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is less than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the charging load system, the energy control module controls the battery energy storage system, the supercapacitor energy storage system and the AC power grid to supply power to the wide temperature range thermal management system and the charging load system; If the current operating power of the charging load system is zero, calculate the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system, and compare the calculated result with the current operating power of the wide temperature range thermal management system; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is equal to the current operating power of the wide temperature range thermal management system, the energy control module controls the battery energy storage system and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is greater than the current operating power of the wide temperature range thermal management system, the energy control module controls the battery energy storage system and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system and the AC power grid; If the sum of the current operating power of the battery energy storage system and the current operating power of the supercapacitor energy storage system is less than the current operating power of the wide temperature range thermal management system, the energy control module controls the battery energy storage system, the supercapacitor energy storage system and the AC power grid to supply power to the wide temperature range thermal management system.

[0012] Furthermore, the step S2.3 further includes: determining the current operating power of the charging load system, If the current operating power of the charging load system is not zero, calculate the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system, as well as the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system, and the current operating power of the AC power grid, and compare the calculation results; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is greater than the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system and the supercapacitor energy storage system to supply power to the battery energy storage system, the wide temperature range thermal management system, the charging load system and the AC power grid; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is not greater than the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system, and the current operating power of the AC power grid, calculate the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the charging load system, and compare the calculated result with the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is greater than the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system, the energy control module controls the photovoltaic power generation system, the supercapacitor energy storage system and the battery energy storage system to supply power to the wide temperature range thermal management system, the charging load system and the AC power grid; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is less than the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system, the energy control module controls the photovoltaic power generation system, the supercapacitor energy storage system, the battery energy storage system and the AC power grid to supply power to the wide temperature range thermal management system and the charging load system; If the current operating power of the charging load system is zero, calculate the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid, and compare the calculated result with the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is greater than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system and the supercapacitor energy storage system to supply power to the battery energy storage system, the wide temperature range thermal management system and the AC power grid; If the sum of the current operating power of the photovoltaic power generation system and the current operating power of the supercapacitor energy storage system is not greater than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid, compare the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid with the current operating power of the wide temperature range thermal management system; If the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid is greater than the current operating power of the wide temperature range thermal management system, the energy control module controls the photovoltaic power generation system, the supercapacitor energy storage system, and the battery energy storage system to supply power to the wide temperature range thermal management system and the AC power grid; If the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid is less than the current operating power of the wide temperature range thermal management system, the energy control module controls the photovoltaic power generation system, the supercapacitor energy storage system, the battery energy storage system and the AC power grid to supply power to the wide temperature range thermal management system.

[0013] Furthermore, the step S2.4 further includes: determining the current operating power of the charging load system, If the current operating power of the charging load system is not zero, calculate the sum of the maximum powers of the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system, as well as the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system, and the current operating power of the AC power grid, and compare the calculation results; If the sum of the maximum powers of the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system is greater than the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system, and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system, the charging load system, and the AC power grid; If the sum of the maximum powers of the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system is less than the sum of the current operating power of the wide temperature range thermal management system, the current operating power of the charging load system, and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system, the battery energy storage system, the supercapacitor energy storage system, and the AC power grid to supply power to the wide temperature range thermal management system and the charging load system; If the current operating power of the charging load system is zero, calculate the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid; Compare the calculated results with the sum of the maximum powers of the photovoltaic power generation system, battery energy storage system, and supercapacitor energy storage system; If the sum of the maximum powers of the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system is greater than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system to supply power to the wide temperature range thermal management system and the AC power grid; If the sum of the maximum powers of the photovoltaic power generation system, the battery energy storage system, and the supercapacitor energy storage system is less than the sum of the current operating power of the wide temperature range thermal management system and the current operating power of the AC power grid, the energy control module controls the photovoltaic power generation system, the battery energy storage system, the supercapacitor energy storage system, and the AC power grid to supply power to the wide temperature range thermal management system.

[0014] The invention is designed to achieve the second of the above objectives. The invention is characterized by an integrated photovoltaic storage and charging control system coupled with a wide temperature range and thermal management. The system comprises: Photovoltaic power generation system, unidirectional transformer module, bidirectional transformer and isolation module, inverter module, AC power grid, battery energy storage system, first bidirectional transformer module, wide temperature range thermal management system, energy control module, charging load system, supercapacitor energy storage system, second bidirectional transformer module; The photovoltaic power generation system is used to convert solar energy into direct current electricity; The unidirectional voltage transformation module is used to perform unidirectional voltage step-up or step-down processing on the DC power output by the photovoltaic power generation system; The bidirectional voltage conversion and isolation module is used to perform bidirectional conversion on electric energy and perform electrical isolation protection when an abnormal operation is detected; The inverter module is used to convert direct current into alternating current; The AC power grid is used as an external AC power input or output interface of the system; The battery energy storage system is used to store or release electrical energy; The first bidirectional transformer module is used for bidirectional conversion of electric energy between the battery energy storage system and the DC bus; The wide temperature range thermal management system is used to collect the temperatures inside and outside the battery energy storage system and adjust the cooling or heating power according to preset temperature thresholds and difference logic; The energy control module is used to monitor the operating status of the photovoltaic power generation system, the AC power grid, the charging load system, the supercapacitor energy storage system, and the battery energy storage system, and dynamically adjust the start and stop status and energy flow of each module according to the time-of-use electricity price strategy and power demand; The charging load system is used to output electrical energy to external devices; The supercapacitor energy storage system is used to provide rapid charging and discharging capabilities to alleviate the impact of photovoltaic power generation fluctuations or load mutations on the stability of the power supply system; The second bidirectional transformer module is used to realize bidirectional flow of electric energy between the DC bus and the supercapacitor energy storage system, supporting rapid absorption and release of energy by the supercapacitor system.

[0015] Furthermore, the energy control module establishes a communication connection with the unidirectional transformer module, the inverter module, the battery energy storage system, the first bidirectional transformer module, the wide temperature range thermal management system and the second bidirectional transformer module through an interactive interface.

[0016] In order to achieve the third of the above-mentioned objectives, the present invention is designed to provide a computer program product, which includes computer instructions, and the computer instructions are used to enable a computer to execute the above-mentioned graph-structured construction industry safety question and answer retrieval enhancement generation method.

[0017] The present invention has the following beneficial effects: (1) The present invention monitors the temperature inside and outside the battery energy storage system in real time, and dynamically adjusts the working mode and working power level of the wide temperature range thermal management system according to the preset temperature threshold and the temperature difference between the inside and outside. The refined and hierarchical thermal management power adjustment strategy based on multiple temperature conditions can more effectively maintain the energy storage system in an appropriate operating temperature range, avoiding performance degradation, premature aging or protective shutdown caused by extreme temperatures; it enhances the stable operation capability and environmental adaptability of the integrated photovoltaic storage and charging system under different ambient temperatures, and ensures the reliability and life of the core energy storage components.

[0018] (2) The present invention incorporates the real-time working power of the wide-temperature range thermal management system into the overall energy management decision of the energy control module; the energy control module is based on the time-of-use electricity price mechanism and comprehensively considers the power status of each module and the thermal management system's own energy consumption and other aspects to coordinate and control the working status of each energy conversion module in the system; this dynamic coupling of energy flow and thermal management requirements ensures that thermal management obtains energy supply when necessary. At the same time, its energy consumption is included in the overall economic scheduling model. On the premise of meeting the temperature regulation requirements, it can give priority to the use of low-cost electricity or optimize the energy storage charging and discharging strategy to achieve peak-valley arbitrage, maximize green electricity consumption and minimize operating costs, thereby improving the comprehensive energy utilization efficiency and economic benefits of the integrated photovoltaic storage and charging system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart illustrating a method for integrated photovoltaic storage and charging control coupled with wide temperature range and thermal management according to an embodiment of the present invention is shown.

[0020] Figure 2 A schematic diagram illustrating the operating modes and operating power determination process of a wide temperature range thermal management system according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram illustrating a flow chart of determining a time-of-use electricity price mechanism according to an embodiment of the present invention.

[0022] Figure 4 A schematic diagram showing a detailed step flow of step S2.1 of an embodiment of the present invention; Figure 5 A schematic diagram showing a detailed step flow of step S2.2 of an embodiment of the present invention; Figure 6 A schematic diagram showing a detailed step flow of step S2.3 of an embodiment of the present invention; Figure 7 A schematic diagram showing a detailed step flow of step S2.4 of an embodiment of the present invention; Figure 8 A module schematic diagram of an integrated photovoltaic storage and charging control system coupling a wide temperature range and thermal management according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0024] like Figures 1 to 8As shown, the embodiment of the present invention discloses a photovoltaic storage and charging integrated control method and system that couples a wide temperature range with thermal management, which can meet the requirements of efficient and safe operation of the photovoltaic storage and charging integrated system in a wide temperature range environment.

[0025] Example 1 This embodiment discloses a photovoltaic storage and charging integrated control method coupled with a wide temperature range and thermal management, the method comprising the following steps: Step S1: The wide temperature range thermal management system 8 collects the external ambient temperature and the internal temperature of the battery energy storage system 6, compares the external ambient temperature with a preset temperature threshold, and adjusts the current operating mode of the wide temperature range thermal management system 8 based on the comparison result; calculates the temperature difference between the external ambient temperature and the internal temperature, compares the calculated temperature difference with a preset temperature difference, and adjusts the operating power of the current operating mode of the wide temperature range thermal management system 8 based on the comparison result; Step S2: The energy control module 9 collects the current operating power of the photovoltaic power generation system 1, the battery energy storage system 6, the wide temperature range thermal management system 8, the charging load system 10, the supercapacitor energy storage system 11 and the AC power grid 5, and determines the current corresponding electricity price period based on the time-of-use electricity price mechanism. According to the current operating power of each module and the current corresponding electricity price period, the energy control module 9 controls the working status of the first bidirectional transformation module 7, the second bidirectional transformation module 12, the bidirectional transformation and isolation module 3, the inverter module 4 and the unidirectional transformation module 2.

[0026] In this embodiment, step S1 includes: S1.1: Compare the temperature outside the battery energy storage system 6 to see if it is greater than a first preset temperature threshold. If so, execute step S1.2; otherwise, execute step S1.3. It should be noted that the first preset temperature threshold is 15°C; S1.2: The wide temperature range thermal management system 8 performs heat dissipation according to the heat dissipation working mode; S1.3: The wide temperature range thermal management system 8 performs heating according to the heating working mode; Among them, step S1.2 specifically includes: S1.2.1: Compare the external temperature of the battery energy storage system 6 to see if it is greater than a second preset temperature threshold. If so, execute step 1.2.2; otherwise, execute step 1.2.3. It should be noted that the second preset temperature threshold is 30°C; S1.2.2: Determine whether the difference between the ambient temperature outside the box and the temperature inside the box is greater than a first preset temperature difference. If so, wide-temperature-range thermal management system 8 dissipates heat at 75% of its power. Otherwise, wide-temperature-range thermal management system 8 dissipates heat at 100% of its power. It should be noted that the first preset temperature difference is 10°C; S1.2.3: The wide temperature range thermal management system 8 dissipates heat at 25% power. Step 1.3 specifically includes: S1.3.1: Compare the external temperature of the battery energy storage system 6 to see if it is greater than a third preset temperature threshold. If so, proceed to step 1.3.2; otherwise, proceed to step 1.3.3. It should be noted that the third preset temperature threshold is 0°C; S1.3.2: The wide temperature range thermal management system 8 operates at 25% power. S1.3.3: Determine whether the difference between the ambient temperature outside the chamber and the temperature inside the chamber is greater than a second preset temperature difference. If so, wide temperature range thermal management system 8 performs heating at 100% power. Otherwise, wide temperature range thermal management system 8 performs heating at 75% power. It should be noted that the second preset temperature difference is 10°C.

[0027] In this embodiment, step S2 includes: S2.1: If the current electricity price is in a preset valley period, the energy control module 9 controls the first bidirectional transformation module 7, the second bidirectional transformation module 12, the bidirectional transformation and isolation module 3, and the inverter module 4 to be in operation; S2.2: If the current electricity price is in a preset low-price period, the energy control module 9 controls the first bidirectional transformation module 7, the second bidirectional transformation module 12, the bidirectional transformation and isolation module 3, and the inverter module 4 to be in an operating state; S2.3: If the current electricity price is in the preset flat period, the energy control module 9 controls the first bidirectional transformation module 7, the second bidirectional transformation module 12, the bidirectional transformation and isolation module 3, the inverter module 4 and the unidirectional transformation module 2 to be in the working state; S2.4: If the current electricity price is in the preset peak period, the energy control module 9 controls the first bidirectional transformation module 7, the second bidirectional transformation module 12, the bidirectional transformation and isolation module 3, the inverter module 4 and the unidirectional transformation module 2 to be in working state.

[0028] In this embodiment, the step S2.1 further includes: determining the current working power of the charging load system 10, If the working power of the current charging load system 10 is not zero, the energy control module 9 controls the AC power grid 5 to supply power to the battery energy storage system 6, the supercapacitor energy storage system 11 and the wide temperature range thermal management system 8; If the current operating power of the charging load system 10 is zero, the energy control module 9 controls the AC power grid 5 to supply power to the battery energy storage system 6 , the supercapacitor energy storage system 11 , the wide temperature range thermal management system 8 and the charging load system 10 .

[0029] In this embodiment, the step S2.2 further includes: determining the current working power of the charging load system 10, If the current operating power of the charging load system 10 is not zero, calculate the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11, as well as the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the charging load system 10, and compare the calculation results; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is equal to the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the charging load system 10, the energy control module 9 controls the battery energy storage system 6 and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8 and the charging load system 10; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the charging load system 10, the energy control module 9 controls the battery energy storage system 6 and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8, the charging load system 10 and the AC power grid 5; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is less than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the charging load system 10, the energy control module 9 controls the battery energy storage system 6, the supercapacitor energy storage system 11 and the AC power grid 5 to supply power to the wide temperature range thermal management system 8 and the charging load system 10; If the current operating power of the charging load system 10 is zero, calculate the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11, and compare the calculated result with the current operating power of the wide temperature range thermal management system 8; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is equal to the current operating power of the wide temperature range thermal management system 8, the energy control module 9 controls the battery energy storage system 6 and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is greater than the current operating power of the wide temperature range thermal management system 8, the energy control module 9 controls the battery energy storage system 6 and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8 and the AC power grid 5; If the sum of the current operating power of the battery energy storage system 6 and the current operating power of the supercapacitor energy storage system 11 is less than the current operating power of the wide temperature range thermal management system 8, the energy control module 9 controls the battery energy storage system 6, the supercapacitor energy storage system 11 and the AC power grid 5 to supply power to the wide temperature range thermal management system 8.

[0030] In this embodiment, the step S2.3 further includes: determining the current working power of the charging load system 10, If the current operating power of the charging load system 10 is not zero, calculate the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11, as well as the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10, and the current operating power of the AC power grid 5, and compare the calculation results; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10 and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1 and the supercapacitor energy storage system 11 to supply power to the battery energy storage system 6, the wide temperature range thermal management system 8, the charging load system 10 and the AC power grid 5; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is not greater than the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10, and the current operating power of the AC power grid 5, the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the charging load system 10 is calculated, and the calculated result is compared with the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11, the energy control module 9 controls the photovoltaic power generation system 1, the supercapacitor energy storage system 11 and the battery energy storage system 6 to supply power to the wide temperature range thermal management system 8, the charging load system 10 and the AC power grid 5; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is less than the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11, the energy control module 9 controls the photovoltaic power generation system 1, the supercapacitor energy storage system 11, the battery energy storage system 6 and the AC power grid 5 to supply power to the wide temperature range thermal management system 8 and the charging load system 10; If the current operating power of the charging load system 10 is zero, calculate the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5, and compare the calculated result with the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1 and the supercapacitor energy storage system 11 to supply power to the battery energy storage system 6, the wide temperature range thermal management system 8 and the AC power grid 5; If the sum of the current operating power of the photovoltaic power generation system 1 and the current operating power of the supercapacitor energy storage system 11 is not greater than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5, the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5 is compared with the current operating power of the wide temperature range thermal management system 8; If the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5 is greater than the current operating power of the wide temperature range thermal management system 8, the energy control module 9 controls the photovoltaic power generation system 1, the supercapacitor energy storage system 11 and the battery energy storage system 6 to supply power to the wide temperature range thermal management system 8 and the AC power grid 5; If the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5 is less than the current operating power of the wide temperature range thermal management system 8, the energy control module 9 controls the photovoltaic power generation system 1, the supercapacitor energy storage system 11, the battery energy storage system 6 and the AC power grid 5 to supply power to the wide temperature range thermal management system 8.

[0031] In this embodiment, the step S2.4 further includes: determining the current working power of the charging load system 10, If the current operating power of the charging load system 10 is not zero, calculate the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11, as well as the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10, and the current operating power of the AC power grid 5, and compare the calculation results; If the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10, and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8, the charging load system 10, and the AC power grid 5; If the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11 is less than the sum of the current operating power of the wide temperature range thermal management system 8, the current operating power of the charging load system 10, and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1, the battery energy storage system 6, the supercapacitor energy storage system 11, and the AC power grid 5 to supply power to the wide temperature range thermal management system 8 and the charging load system 10; If the current operating power of the charging load system 10 is zero, the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5 is calculated; Compare the calculated result with the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11; If the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11 is greater than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1, the battery energy storage system 6, and the supercapacitor energy storage system 11 to supply power to the wide temperature range thermal management system 8 and the AC power grid 5; If the sum of the maximum powers of the photovoltaic power generation system 1, the battery energy storage system 6 and the supercapacitor energy storage system 11 is less than the sum of the current operating power of the wide temperature range thermal management system 8 and the current operating power of the AC power grid 5, the energy control module 9 controls the photovoltaic power generation system 1, the battery energy storage system 6, the supercapacitor energy storage system 11 and the AC power grid 5 to supply power to the wide temperature range thermal management system 8.

[0032] Example 2 This embodiment discloses an integrated photovoltaic storage and charging control system that couples a wide temperature range with thermal management. The system includes: Photovoltaic power generation system 1, unidirectional transformer module 2, bidirectional transformer and isolation module 3, inverter module 4, AC grid 5, battery energy storage system 6, first bidirectional transformer module 7, wide temperature range thermal management system 8, energy control module 9, charging load system 10, supercapacitor energy storage system 11, second bidirectional transformer module 12; The photovoltaic power generation system 1 is used to convert solar energy into direct current electricity; The unidirectional voltage transformation module 2 is used to perform unidirectional voltage step-up or step-down processing on the DC power output by the photovoltaic power generation system 1; The bidirectional transformation and isolation module 3 is used to perform bidirectional transformation of electric energy and perform electrical isolation protection when an abnormal operation is detected; The inverter module 4 is used to convert direct current into alternating current; The AC power grid 5 is used as an external AC power input or output interface of the system; The battery energy storage system 6 is used to store or release electrical energy; The first bidirectional transformation module 7 is used for bidirectional conversion of electric energy between the battery energy storage system and the DC bus; The wide temperature range thermal management system 8 is used to collect the temperature inside and outside the battery energy storage system and adjust the cooling or heating power according to the preset temperature threshold and difference logic; The energy control module 9 is used to monitor the operating status of the photovoltaic power generation system, the AC power grid, the charging load system, the supercapacitor energy storage system, and the battery energy storage system, and dynamically adjust the start and stop status and energy flow of each module according to the time-of-use electricity price strategy and power demand; The charging load system 10 is used to output electrical energy to external devices; The supercapacitor energy storage system 11 is used to provide fast charging and discharging capabilities to alleviate the impact of photovoltaic power generation fluctuations or load mutations on the stability of the power supply system; The second bidirectional transformer module 12 is used to realize bidirectional flow of electric energy between the DC bus and the supercapacitor energy storage system, supporting rapid absorption and release of energy by the supercapacitor system.

[0033] In this embodiment, the energy control module establishes communication connections with the unidirectional transformation module 2, the inverter module 4, the battery energy storage system 6, the first bidirectional transformation module 7, the wide temperature range thermal management system 8 and the second bidirectional transformation module 12 through an interactive interface.

[0034] Example 3 The present embodiment discloses a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of computer program instructions in computer-readable media includes but is not limited to source files, executable files, installation package files, etc., and accordingly, the way in which computer program instructions are executed by a computer includes but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to the computer. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the program and module described above can refer to the corresponding process description in the aforementioned method embodiment, and will not be repeated here.

[0035] The algorithm and display provided herein are not inherently related to any particular computer, virtual system or other device. Various general-purpose systems can also be used together with the teachings based on this. According to the above description, it is obvious that the structure required for constructing this type of system. In addition, the present invention is not directed to any specific programming language. It should be understood that various programming languages ​​can be utilized to realize the content of the present invention described herein, and the above description of specific languages ​​is for the purpose of disclosing the best mode of the present invention.

[0036] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0037] Similarly, it should be understood that in order to streamline the present disclosure and aid understanding of one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims that follow the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.

Claims

1. A photovoltaic storage and charging integrated control method coupling wide temperature range and thermal management, characterized in that: The steps include: S1: The wide temperature range thermal management system (8) collects the ambient temperature outside the box and the temperature inside the box of the battery energy storage system (6), compares the ambient temperature outside the box with a preset temperature threshold, and adjusts the current working mode of the wide temperature range thermal management system (8) based on the comparison result; calculates the temperature difference between the ambient temperature outside the box and the temperature inside the box, compares the calculated temperature difference with the preset temperature difference, and adjusts the working power of the current working mode of the wide temperature range thermal management system (8) based on the comparison result; S2: The energy control module (9) collects the current working power of the photovoltaic power generation system (1), the battery energy storage system (6), the wide temperature range thermal management system (8), the charging load system (10), the supercapacitor energy storage system (11) and the AC power grid (5), and determines the current corresponding electricity price period based on the time-of-use electricity price mechanism. According to the current working power of each module and the current corresponding electricity price period, the energy control module (9) controls the working status of the first bidirectional transformer module (7), the second bidirectional transformer module (12), the bidirectional transformer and isolation module (3), the inverter module (4) and the unidirectional transformer module (2).

2. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 1 is characterized in that: The step S1 comprises: S1.1: Compare whether the temperature outside the battery energy storage system (6) is greater than a first preset temperature threshold. If the temperature outside the battery energy storage system (6) is greater than the first preset temperature threshold, execute step S1.2; otherwise, execute step S1.3; S1.2: the wide temperature range thermal management system (8) performs heat dissipation according to the heat dissipation working mode; S1.3: The wide temperature range thermal management system (8) performs heating according to the heating working mode; Among them, step S1.2 specifically includes: S1.2.1: Compare whether the temperature outside the battery energy storage system (6) is greater than a second preset temperature threshold. If the temperature outside the battery energy storage system (6) is greater than the second preset temperature threshold, execute step 1.2.2; otherwise, execute step 1.2.3; S1.2.2: Determine whether the difference between the ambient temperature outside the box and the temperature inside the box is greater than a first preset temperature difference. If the difference between the ambient temperature outside the box and the temperature inside the box is greater than the first preset temperature difference, the wide temperature range thermal management system (8) performs heat dissipation at 75% of the power; otherwise, the wide temperature range thermal management system (8) performs heat dissipation at 100% of the power. S1.2.3: Wide temperature range thermal management system (8) dissipates heat at 25% power; Step 1.3 specifically includes: S1.3.1: Compare whether the temperature outside the battery energy storage system (6) is greater than a third preset temperature threshold. If the ambient temperature outside the battery energy storage system (6) is greater than the third preset temperature threshold, execute step 1.3.2; otherwise, execute step 1.3.

3. S1.3.2: Wide temperature range thermal management system (8) heating at 25% power; S1.3.3: Determine whether the difference between the ambient temperature outside the box and the temperature inside the box is greater than a second preset temperature difference. If the difference between the ambient temperature outside the box and the temperature inside the box is greater than the second preset temperature difference, the wide temperature range thermal management system (8) performs heating at 100% power; otherwise, the wide temperature range thermal management system (8) performs heating at 75% power.

3. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 1 is characterized in that: The step S2 comprises: S2.1: If the current electricity price is in a preset electricity price valley period, the energy control module (9) controls the first bidirectional transformer module (7), the second bidirectional transformer module (12), the bidirectional transformer and isolation module (3) and the inverter module (4) to be in an operating state; S2.2: If the current electricity price is in a preset low electricity price period, the energy control module (9) controls the first bidirectional transformation module (7), the second bidirectional transformation module (12), the bidirectional transformation and isolation module (3) and the inverter module (4) to be in an operating state; S2.3: If the current electricity price is in the preset flat period, the energy control module (9) controls the first bidirectional transformer module (7), the second bidirectional transformer module (12), the bidirectional transformer and isolation module (3), the inverter module (4) and the unidirectional transformer module (2) to be in an operating state; S2.4: If the current electricity price is in the preset peak electricity price period, the energy control module (9) controls the first bidirectional transformation module (7), the second bidirectional transformation module (12), the bidirectional transformation and isolation module (3), the inverter module (4) and the unidirectional transformation module (2) to be in an operating state.

4. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 3 is characterized in that: The step S2.1 further includes: determining the current working power of the charging load system (10), If the working power of the current charging load system (10) is not zero, the energy control module (9) controls the AC power grid (5) to supply power to the battery energy storage system (6), the supercapacitor energy storage system (11) and the wide temperature range thermal management system (8); If the working power of the current charging load system (10) is zero, the energy control module (9) controls the AC power grid (5) to supply power to the battery energy storage system (6), the supercapacitor energy storage system (11), the wide temperature range thermal management system (8) and the charging load system (10).

5. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 3 is characterized in that: The step S2.2 further includes: determining the current working power of the charging load system (10), If the current operating power of the charging load system (10) is not zero, calculate the sum of the current operating power of the battery energy storage system (6) and the current operating power of the supercapacitor energy storage system (11), and the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the charging load system (10), and compare the calculation results; If the sum of the current working power of the battery energy storage system (6) and the current working power of the supercapacitor energy storage system (11) is equal to the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the charging load system (10), the energy control module (9) controls the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8) and the charging load system (10); If the sum of the current working power of the battery energy storage system (6) and the current working power of the supercapacitor energy storage system (11) is greater than the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the charging load system (10), the energy control module (9) controls the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8), the charging load system (10) and the AC power grid (5); If the sum of the current working power of the battery energy storage system (6) and the current working power of the supercapacitor energy storage system (11) is less than the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the charging load system (10), the energy control module (9) controls the battery energy storage system (6), the supercapacitor energy storage system (11) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8) and the charging load system (10); If the current operating power of the charging load system (10) is zero, calculate the sum of the current operating power of the battery energy storage system (6) and the current operating power of the supercapacitor energy storage system (11), and compare the calculated result with the current operating power of the wide temperature range thermal management system (8); If the sum of the current operating power of the battery energy storage system (6) and the current operating power of the supercapacitor energy storage system (11) is equal to the current operating power of the wide temperature range thermal management system (8), the energy control module (9) controls the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8); If the sum of the current operating power of the battery energy storage system (6) and the current operating power of the supercapacitor energy storage system (11) is greater than the current operating power of the wide temperature range thermal management system (8), the energy control module (9) controls the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8) and the AC power grid (5); If the sum of the current operating power of the battery energy storage system (6) and the current operating power of the supercapacitor energy storage system (11) is less than the current operating power of the wide temperature range thermal management system (8), the energy control module (9) controls the battery energy storage system (6), the supercapacitor energy storage system (11) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8).

6. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 3 is characterized in that: The step S2.3 further includes: determining the current working power of the charging load system (10), If the current working power of the charging load system (10) is not zero, calculate the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11), as well as the sum of the current working power of the wide temperature range thermal management system (8), the current working power of the charging load system (10) and the current working power of the AC power grid (5), and compare the calculation results; If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is greater than the sum of the current working power of the wide temperature range thermal management system (8), the current working power of the charging load system (10) and the current working power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1) and the supercapacitor energy storage system (11) to supply power to the battery energy storage system (6), the wide temperature range thermal management system (8), the charging load system (10) and the AC power grid (5); If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is not greater than the sum of the current working power of the wide temperature range thermal management system (8), the current working power of the charging load system (10) and the current working power of the AC power grid (5), the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the charging load system (10) is calculated, and the calculated result is compared with the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11); If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is greater than the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11), the energy control module (9) controls the photovoltaic power generation system (1), the supercapacitor energy storage system (11) and the battery energy storage system (6) to supply power to the wide temperature range thermal management system (8), the charging load system (10) and the AC power grid (5); If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is less than the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11), the energy control module (9) controls the photovoltaic power generation system (1), the supercapacitor energy storage system (11), the battery energy storage system (6) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8) and the charging load system (10); If the current operating power of the charging load system (10) is zero, the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5) is calculated, and the calculated result is compared with the sum of the current operating power of the photovoltaic power generation system (1) and the current operating power of the supercapacitor energy storage system (11); If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is greater than the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1) and the supercapacitor energy storage system (11) to supply power to the battery energy storage system (6), the wide temperature range thermal management system (8) and the AC power grid (5); If the sum of the current working power of the photovoltaic power generation system (1) and the current working power of the supercapacitor energy storage system (11) is not greater than the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the AC power grid (5), the sum of the current working power of the wide temperature range thermal management system (8) and the current working power of the AC power grid (5) is compared with the current working power of the wide temperature range thermal management system (8); If the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5) is greater than the current operating power of the wide temperature range thermal management system (8), the energy control module (9) controls the photovoltaic power generation system (1), the supercapacitor energy storage system (11) and the battery energy storage system (6) to supply power to the wide temperature range thermal management system (8) and the AC power grid (5); If the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5) is less than the current operating power of the wide temperature range thermal management system (8), the energy control module (9) controls the photovoltaic power generation system (1), the supercapacitor energy storage system (11), the battery energy storage system (6) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8).

7. The integrated photovoltaic storage and charging control method coupled with wide temperature range and thermal management according to claim 3 is characterized in that: The step S2.4 further includes: determining the current operating power of the charging load system (10), If the current operating power of the charging load system (10) is not zero, calculate the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11), and the sum of the current operating power of the wide temperature range thermal management system (8), the current operating power of the charging load system (10) and the current operating power of the AC power grid (5), and compare the calculation results; If the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) is greater than the sum of the current operating power of the wide temperature range thermal management system (8), the current operating power of the charging load system (10) and the current operating power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8), the charging load system (10) and the AC power grid (5); If the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) is less than the sum of the current operating power of the wide temperature range thermal management system (8), the current operating power of the charging load system (10) and the current operating power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1), the battery energy storage system (6), the supercapacitor energy storage system (11) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8) and the charging load system (10); If the current operating power of the charging load system (10) is zero, calculate the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5); Compare the calculated results with the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6), and the supercapacitor energy storage system (11); If the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) is greater than the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) to supply power to the wide temperature range thermal management system (8) and the AC power grid (5); If the sum of the maximum powers of the photovoltaic power generation system (1), the battery energy storage system (6) and the supercapacitor energy storage system (11) is less than the sum of the current operating power of the wide temperature range thermal management system (8) and the current operating power of the AC power grid (5), the energy control module (9) controls the photovoltaic power generation system (1), the battery energy storage system (6), the supercapacitor energy storage system (11) and the AC power grid (5) to supply power to the wide temperature range thermal management system (8).

8. An integrated solar storage and charging control system that couples a wide temperature range with thermal management, characterized in that: include: Photovoltaic power generation system (1), unidirectional voltage transformation module (2), bidirectional voltage transformation and isolation module (3), inverter module (4), AC power grid (5), battery energy storage system (6), first bidirectional voltage transformation module (7), wide temperature range thermal management system (8), energy control module (9), charging load system (10), supercapacitor energy storage system (11), second bidirectional voltage transformation module (12); The photovoltaic power generation system (1) is used to convert solar energy into direct current electricity; The unidirectional voltage transformation module (2) is used to perform unidirectional voltage step-up or step-down processing on the direct current output by the photovoltaic power generation system (1); The bidirectional voltage conversion and isolation module (3) is used to perform bidirectional conversion on electric energy and to perform electrical isolation protection when an abnormal operation is detected; The inverter module (4) is used to convert direct current into alternating current; The AC power grid (5) is used as an external AC power input or output interface of the system; The battery energy storage system (6) is used to store or release electrical energy; The first bidirectional voltage conversion module (7) is used for bidirectional conversion of electric energy between the battery energy storage system and the DC bus; The wide temperature range thermal management system (8) is used to collect the temperature inside and outside the battery energy storage system, and adjust the cooling or heating power according to a preset temperature threshold and difference logic; The energy control module (9) is used to monitor the operating status of the photovoltaic power generation system, the AC power grid, the charging load system, the supercapacitor energy storage system, and the battery energy storage system, and dynamically adjust the start and stop status and energy flow of each module according to the time-of-use electricity price strategy and power demand; The charging load system (10) is used to output electrical energy to external equipment; The supercapacitor energy storage system (11) is used to provide rapid charging and discharging capabilities to alleviate the impact of photovoltaic power generation fluctuations or load mutations on the stability of the power supply system; The second bidirectional transformer module (12) is used to realize bidirectional flow of electric energy between the DC bus and the supercapacitor energy storage system, supporting rapid absorption and release of energy by the supercapacitor system.

9. The integrated solar-storage-charging control system coupled with wide temperature range and thermal management according to claim 8, characterized in that: The energy control module establishes a communication connection with the unidirectional voltage conversion module (2), the inverter module (4), the battery energy storage system (6), the first bidirectional voltage conversion module (7), the wide temperature range thermal management system (8), and the second bidirectional voltage conversion module (12) via an interactive interface.

10. A computer program product, characterized in that The method comprises computer instructions for causing a computer to execute the photovoltaic storage and charging integrated control method coupled with wide temperature range and thermal management as described in claims 1-7.

Images