Photovoltaic energy storage charging system

Abstract

The invention discloses a photovoltaic energy storage charging system, and relates to the field of photovoltaic energy storage charging, and the system comprises a solar photovoltaic panel which is arranged outside and is responsible for converting sunlight into DC electric energy; the inverter is arranged in the power supply machine room and is responsible for converting the direct current generated by the solar photovoltaic panel into alternating current; an energy storage system comprising a battery pack for storing electrical energy, a battery management system (BMS) for monitoring the state of the battery, and an energy management system (EMS) for optimizing energy flow; the charging pile is used for being connected with a physical structure of the electric vehicle and comprises an alternating current (AC) slow charger connected with an inverter and an alternating current (DC) fast charger connected with an energy storage battery pack; the monitoring system comprises a data acquisition system (monitoring camera), monitoring software and a control algorithm, and is used for monitoring the states of the system and the charging pile in fact and optimizing energy management; and a communication module. According to the invention, the photovoltaic panel and the energy storage capacity can be flexibly configured according to requirements, and energy use is optimized through intelligent monitoring and control.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic energy storage and charging, and in particular to a photovoltaic energy storage and charging system. Background Art

[0002] As a clean, renewable energy source, solar energy has broad application prospects. The photovoltaic energy storage charging system combines solar photovoltaic power generation, energy storage technology, and electric vehicle charging technology to improve energy efficiency, reduce dependence on fossil fuels, and promote the popularization of electric vehicles.

[0003] A rational and advanced charging system design helps improve charging efficiency and reduce the cost of electric vehicle use. The charging pile is one of the core components of the electric vehicle charging system, responsible for charging the electric vehicle and controlling the charging current. The charging pile is a specialized device that can be fixed to the ground or wall, providing power to the electric vehicle and equipped with corresponding measurement, control, and protection functions.

[0004] In electric vehicle charging systems, charging piles are typically located behind or to the side of parking spaces. These piles, along with other facilities like parking spaces and canopies, belong to separate systems, lacking a unified construction and production plan. Traditional charging systems offer varying levels of functionality, lacking a unified design or construction plan. Each facility is built independently, resulting in poor compatibility. There is also a lack of electrical connectivity between facilities, with charging piles and auxiliary equipment being dispersed, preventing unified electrical operation. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a photovoltaic energy storage charging system to solve the technical problems that each facility is constructed independently and has poor compatibility; there is a lack of electrical connection between facilities, and the charging piles and between the charging piles and auxiliary equipment are scattered, making it impossible to perform unified electrical operations.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a photovoltaic energy storage and charging system, comprising:

[0007] Solar photovoltaic panels, installed externally, are responsible for converting sunlight into DC electricity;

[0008] The inverter is located in the power supply room and is responsible for converting the direct current generated by the solar photovoltaic panels into alternating current;

[0009] Energy storage systems, including battery packs for storing electrical energy, a battery management system (BMS) to monitor battery status, and an energy management system (EMS) to optimize energy flow;

[0010] Charging piles are used to connect to the physical structure of electric vehicles, including AC slow charging (AC) connected to the inverter and AC fast charging (DC) connected to the energy storage battery pack;

[0011] Monitoring system, including data acquisition system (surveillance camera), monitoring software and control algorithm, used to monitor the status of the system and charging piles and optimize energy management;

[0012] a communication module for communicating with a mobile terminal to obtain a charging confirmation signal from the mobile terminal; a monitoring system communicating with the solar photovoltaic panel and the energy storage system via the communication module to obtain user information of the electric vehicle and adjust the deployment layout of the photovoltaic power generation and energy storage system based on the user information; the user information includes at least one of the user's mobile phone number, ID number, network interface address, WeChat account, charging account, or Alipay account;

[0013] Control system, which includes local system and cloud system control. Cloud system control enables remote monitoring and control;

[0014] an electronic switch module, connected to the control module, for receiving the charging start signal and connecting the charging pile to the electric vehicle via the charging connection port in response to the charging start signal;

[0015] Accessory system: used to assist in supporting the photovoltaic energy storage charging system to keep it stable.

[0016] The present invention is further configured such that the accessory system includes electrical protection and distribution equipment, wherein the electrical protection includes circuit breakers, fuses and overload protection installed in the distribution box and charging pile to ensure the safe operation of the system, and the distribution equipment is responsible for distributing electrical energy to different loads and units.

[0017] The present invention is further configured such that the accessory system includes a supporting structure and an installation system, wherein the structure includes brackets and fixings for solar photovoltaic panels to ensure stable installation of the photovoltaic panels, and the installation system takes into account geographical location, climatic conditions and ease of maintenance.

[0018] The present invention is further configured such that the charging pile is compatible with the physical interface of the electric vehicle, and the charging pile supports the corresponding charging protocol of the electric vehicle.

[0019] The present invention is further configured such that the operation process of the photovoltaic energy storage and charging system includes:

[0020] S1 photovoltaic panels absorb sunlight and convert light energy into DC electricity through the photoelectric effect;

[0021] The S2 inverter converts the DC power generated by the photovoltaic panels into AC power;

[0022] S3 When the electricity generated by photovoltaic power exceeds the immediate demand, the excess electricity is stored in the battery pack through the BMS;

[0023] The S4 electric vehicle is connected to a charging station, which provides power based on the vehicle's charging needs and compatibility. The charging process includes manual start and automatic start through intelligent control.

[0024] The S5 monitoring system collects system operation data in real time, including the output of photovoltaic panels, battery status, and charging station usage.

[0025] The present invention is further configured such that the output power of the solar photovoltaic panel depends on the light intensity, temperature and orientation of the photovoltaic panel, the efficiency of the inverter affects the overall efficiency of the system, and the selection of a high-quality inverter can improve the power conversion efficiency.

[0026] The present invention is further configured such that the battery management system (BMS) monitors battery parameters such as voltage, current, and temperature to ensure battery safety and extend battery life, and the energy management system (EMS) decides whether to allocate electrical energy to charging piles, integrate it into the power grid, or continue to store it based on real-time energy demand and storage status.

[0027] The present invention is further configured such that, when the photovoltaic energy storage and charging system is in operation, the control system adjusts the system operating parameters based on the collected data and a preset optimization algorithm to improve efficiency and reliability. When an abnormal situation such as overload or short circuit occurs in the system, the electrical protection device automatically cuts off the power supply to protect the system safety.

[0028] The present invention is further configured such that the communication module includes an Internet of Things gateway, and the control system is communicatively connected to the monitoring system via the Internet of Things gateway, so that the monitoring system obtains the user information from the Internet of Things gateway.

[0029] The present invention is further configured such that the charging request signal received by the control system generates a user scan code prompt signal, obtains the user's login account information and saves the obtained real-time power supply time to the account information; obtains a charging end signal from the mobile terminal to control the electronic switch unit to disconnect the power supply path between the charging pile and the electric vehicle.

[0030] In summary, the present invention primarily has the following beneficial effects: By incorporating a battery management system and an energy management system that optimizes energy flow, the BMS monitors battery voltage, current, temperature, and other parameters to ensure battery safety and extend battery life. The EMS determines whether to allocate energy to charging stations, integrate it into the grid, or continue to store it based on real-time energy demand and storage status. The EMS can also respond to demand based on electricity price signals, optimizing energy costs. It can flexibly configure photovoltaic panels and energy storage capacity based on demand, optimizing energy use through intelligent monitoring and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 Schematic diagram of the structure of the energy storage system of the present invention;

[0033] Figure 3 Schematic diagram of the structure of the monitoring system of the present invention;

[0034] Figure 4 Schematic diagram of the structure of the local system of the present invention;

[0035] Figure 5 Schematic diagram of the structure of the accessory system of the present invention;

[0036] Figure 6 It is a schematic diagram of the process structure of the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0038] A photovoltaic energy storage charging system, such as Figure 1-6 As shown, it includes: a solar photovoltaic panel, which is set on the outside and is responsible for converting sunlight into direct current electricity;

[0039] The inverter is located in the power supply room and is responsible for converting the direct current generated by the solar photovoltaic panels into alternating current;

[0040] Energy storage systems, including battery packs for storing electrical energy, a battery management system (BMS) to monitor battery status, and an energy management system (EMS) to optimize energy flow;

[0041] Charging piles are used to connect to the physical structure of electric vehicles, including AC slow charging (AC) connected to the inverter and AC fast charging (DC) connected to the energy storage battery pack;

[0042] Monitoring system, including data acquisition system (surveillance camera), monitoring software and control algorithm, used to monitor the status of the system and charging piles and optimize energy management;

[0043] A communication module is configured to communicate with a mobile terminal to obtain a charging confirmation signal from the mobile terminal; the monitoring system is connected to the solar photovoltaic panel and the energy storage system via the communication module to obtain user information of the electric vehicle and adjust the deployment layout of the photovoltaic power generation and energy storage system based on the user information; the user information includes at least one of the user's mobile phone number, ID number, network interface address, WeChat account, charging account, or Alipay account;

[0044] Control system, which includes local system and cloud system control. Cloud system control enables remote monitoring and control;

[0045] An electronic switch module is connected to the control module and is used to receive a charging start signal and connect the charging pile to the electric vehicle through the charging connection port according to the charging start signal;

[0046] Accessory system: used to assist in supporting the photovoltaic energy storage charging system to keep it stable.

[0047] The accessory system includes electrical protection and distribution equipment. Electrical protection includes circuit breakers, fuses and overload protection installed in distribution boxes and charging piles to ensure the safe operation of the system. The distribution equipment is responsible for distributing electrical energy to different loads and units.

[0048] The accessory system includes a supporting structure and an installation system. The structure includes brackets and fixings for solar photovoltaic panels, which are used to ensure the stable installation of photovoltaic panels. The installation system should take into account the geographical location, climatic conditions and ease of maintenance.

[0049] The charging pile is compatible with the physical interface of the electric vehicle, and the charging pile supports the corresponding charging protocol of the electric vehicle.

[0050] The present invention is further configured such that the operation process of the photovoltaic energy storage charging system includes:

[0051] S1 photovoltaic panels absorb sunlight and convert light energy into DC electricity through the photoelectric effect;

[0052] The S2 inverter converts the DC power generated by the photovoltaic panels into AC power;

[0053] S3 When the electricity generated by photovoltaic power exceeds the immediate demand, the excess electricity is stored in the battery pack through the BMS;

[0054] The S4 electric vehicle is connected to a charging station, which provides power based on the vehicle's charging needs and compatibility. The charging process includes manual start and automatic start through intelligent control.

[0055] The S5 monitoring system collects system operation data in real time, including the output of photovoltaic panels, battery status, and charging station usage.

[0056] The output power of solar photovoltaic panels depends on the light intensity, temperature and the orientation of the panels. The efficiency of the inverter affects the overall efficiency of the system. Choosing a high-quality inverter can improve the efficiency of power conversion.

[0057] The battery management system (BMS) monitors battery parameters such as voltage, current, and temperature to ensure battery safety and extend battery life. The energy management system (EMS) decides whether to allocate electricity to charging piles, integrate it into the power grid, or continue to store it based on real-time energy demand and storage status.

[0058] When the photovoltaic energy storage charging system is in operation, the control system adjusts the system operating parameters based on the collected data and preset optimization algorithm to improve efficiency and reliability. When the system encounters abnormal conditions such as overload and short circuit, the electrical protection equipment automatically cuts off the power supply to protect the safety of the system.

[0059] The communication module includes: an Internet of Things gateway, and the control system communicates with the monitoring system through the Internet of Things gateway, so that the monitoring system obtains user information from the Internet of Things gateway.

[0060] The control system receives a charging request signal and generates a user scan code prompt signal, obtains the user's login account information and saves the obtained real-time power supply time to the account information; obtains a charging end signal from the mobile terminal to control the electronic switch unit to disconnect the power supply path between the charging pile and the electric vehicle.

[0061] The working principle of the present invention is as follows: photovoltaic panels absorb sunlight and convert light energy into direct current (DC) electricity through the photoelectric effect; an inverter converts the DC electricity generated by the photovoltaic panels into alternating current (AC); when the photovoltaic power generation exceeds immediate demand, the excess energy is stored in a battery pack via a battery management system (BMS); an electric vehicle is connected to a charging pile, which provides power based on the vehicle's charging needs and compatibility. The charging process includes manual start and automatic start through intelligent control; a monitoring system collects system operation data in real time, including the output of the photovoltaic panels, battery status, and charging pile usage; a communication module communicates with a mobile terminal to obtain a charging confirmation signal from the mobile terminal; the monitoring system communicates with the solar photovoltaic panels and the energy storage system via the communication module to obtain user information of the electric vehicle and adjust the deployment layout of the photovoltaic power generation and energy storage system based on the user information; user information includes the user's mobile phone number, ID number, network interface address, WeChat account, charging account, or Alipay account; the control system generates a user scan code prompt signal based on the charging request signal received, obtains the user's login account information, and saves the obtained real-time power supply time in the account information; and obtains a charging end signal from the mobile terminal to control the electronic switch unit to disconnect the power supply path between the charging pile and the electric vehicle.

[0062] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A photovoltaic energy storage charging system, characterized in that: include: Solar photovoltaic panels, which are installed outside and are responsible for converting sunlight into DC electricity; The inverter is installed in the power supply room and is responsible for converting the direct current generated by the solar photovoltaic panels into alternating current; Energy storage systems, including battery packs for storing electrical energy, battery management systems (BMS) to monitor battery status, and energy management systems (EMS) to optimize energy flow; Charging piles are used to connect to the physical structure of electric vehicles, including AC slow charging (AC) connected to inverters and AC fast charging (DC) connected to energy storage battery packs; Monitoring system, including data acquisition system (surveillance camera), monitoring software and control algorithm, used to monitor the status of the system and charging piles and optimize energy management; A communication module, used to communicate with the mobile terminal to obtain a charging confirmation signal from the mobile terminal; The monitoring system is connected to the solar photovoltaic panel and the energy storage system through the communication module to obtain the user information of the electric vehicle, and adjust the deployment layout of the photovoltaic power generation and energy storage system according to the user information; the user information includes at least one of the user's mobile phone number, ID card number, network interface address, WeChat account, charging account or Alipay account; Control system, which includes local system and cloud system control. Cloud system control realizes remote monitoring and control; an electronic switch module, connected to the control module, for receiving the charging start signal and connecting the charging pile to the electric vehicle via the charging connection port according to the charging start signal; Accessory system: used to assist in supporting the photovoltaic energy storage charging system to keep it stable.

2. A photovoltaic energy storage charging system according to claim 1, characterized in that: The accessory system includes electrical protection and distribution equipment. The electrical protection includes circuit breakers, fuses and overload protection installed in the distribution box and charging pile to ensure the safe operation of the system. The distribution equipment is responsible for distributing electrical energy to different loads and units.

3. A photovoltaic energy storage charging system according to claim 2, characterized in that: The accessory system includes a supporting structure and a mounting system. The structure includes brackets and fixings for solar photovoltaic panels to ensure stable installation of the photovoltaic panels. The mounting system should take into account geographical location, climatic conditions and ease of maintenance.

4. A photovoltaic energy storage charging system according to claim 1, characterized in that: The charging pile is compatible with the physical interface of the electric vehicle, and the charging pile supports the corresponding charging protocol of the electric vehicle.

5. A photovoltaic energy storage charging system according to claim 1, characterized in that: The operation process of the photovoltaic energy storage charging system includes: S1 photovoltaic panels absorb sunlight and convert light energy into DC electricity through the photoelectric effect; The S2 inverter converts the DC power generated by the photovoltaic panels into AC power; S3 When the electricity generated by photovoltaic power exceeds the immediate demand, the excess electricity is stored in the battery pack through the BMS; The S4 electric vehicle is connected to a charging station, which provides power according to the vehicle's charging needs and compatibility. The charging process includes manual start and automatic start through intelligent control. The S5 monitoring system collects system operation data in real time, including the output of photovoltaic panels, battery status, and charging pile usage.

6. A photovoltaic energy storage charging system according to claim 5, characterized in that: The output power of the solar photovoltaic panel depends on the light intensity, temperature and direction of the photovoltaic panel. The efficiency of the inverter affects the overall efficiency of the system. Selecting a high-quality inverter can improve the efficiency of power conversion.

7. A photovoltaic energy storage charging system according to claim 5, characterized in that: The battery management system (BMS) monitors battery parameters such as voltage, current, and temperature to ensure battery safety and extend battery life. The energy management system (EMS) decides to distribute electrical energy to charging piles, integrate it into the power grid, or continue to store it based on real-time energy demand and storage status.

8. A photovoltaic energy storage charging system according to claim 5, characterized in that: The photovoltaic energy storage charging system operation control system adjusts the system operation parameters according to the collected data and the preset optimization algorithm to improve the efficiency and reliability. The electrical protection device automatically cuts off the power supply to protect the system safety when the system encounters abnormal conditions such as overload and short circuit.

9. A photovoltaic energy storage charging system according to claim 1, characterized in that: The communication module includes: an Internet of Things gateway, and the control system is communicatively connected with the monitoring system through the Internet of Things gateway, so that the monitoring system obtains the user information from the Internet of Things gateway.

10. A photovoltaic energy storage charging system according to claim 1, characterized in that: The control system receives a charging request signal and generates a user code scanning prompt signal, obtains the user's login account information and saves the obtained real-time power supply time to the account information; A charging end signal from the mobile terminal is obtained to control the electronic switch unit to disconnect the power supply path between the charging pile and the electric vehicle.

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