Power supply component of photovoltaic energy storage charging station

Abstract

The utility model discloses a photovoltaic energy storage charging station power supply component which comprises an alternating current bus, the alternating current bus is respectively and electrically connected with a photovoltaic assembly, an energy storage battery and a load, the energy storage battery receives electric energy of the photovoltaic assembly through the alternating current bus to carry out energy storage operation, and the load comprises a charging station. The charging station receives the electric energy of the energy storage battery or the photovoltaic module to perform discharging and charging actions; the photovoltaic assembly comprises a photovoltaic panel, and the photovoltaic panel comprises a single-sided single-crystal half-piece assembly and a double-sided single-crystal half-piece assembly which are used for being arranged on the roof of a charging parking lot car or the roof of a nearby building. According to the utility model, the single-sided single-crystal half-piece assembly and the double-sided single-crystal half-piece assembly are designed, so that the photovoltaic assembly can adapt to installation environments with different bearing capacities. Therefore, the photovoltaic energy storage charging station can be applied to more diversified places, and the flexibility and universality of the photovoltaic energy storage charging station are improved. The problem that the application of the traditional assembly design in different installation environments is limited is successfully solved, and a wider space is provided for the application of the photovoltaic energy storage charging station.

Description

Technical Field

[0001] This utility model belongs to the field of charging station technology, and in particular relates to a power supply component for a photovoltaic energy storage charging station. Background Technology

[0002] A photovoltaic (PV) energy storage charging station is a facility that uses photovoltaic power generation and energy storage technology to provide charging services for electric vehicles. It combines PV power generation, energy storage systems, and charging facilities, achieving efficient utilization of renewable energy and rapid charging of electric vehicles through the integration and optimization of these technologies.

[0003] However, existing technologies have some problems: traditional component designs are often limited to specific installation conditions, lacking flexibility and versatility, which limits their application in different environments. Therefore, we propose a power supply component for photovoltaic energy storage charging stations. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a power supply component for a photovoltaic energy storage charging station, which solves the problem that traditional component designs are often limited to specific installation conditions, lack flexibility and versatility, and thus have limited application in different environments.

[0005] This utility model is implemented as follows: a power supply component for a photovoltaic energy storage charging station includes an AC bus, which is electrically connected to a photovoltaic module, an energy storage battery, and a load. The energy storage battery receives electrical energy from the photovoltaic module through the AC bus for energy storage. The load includes a charging station, which receives electrical energy from the energy storage battery or the photovoltaic module for discharging and charging. The photovoltaic module includes a photovoltaic panel, which includes single-sided monocrystalline half-cell modules and double-sided monocrystalline half-cell modules for installation on the roof of a charging parking lot canopy or the roof of a nearby building.

[0006] As a preferred embodiment of this invention, the single-sided monocrystalline half-cell module has a single-cell capacity of 445 watts peak value.

[0007] As a preferred embodiment of this invention, the single-cell capacity of the bifacial monocrystalline half-cell module is 445 watts peak value.

[0008] As a preferred embodiment of this invention, multiple photovoltaic panels are provided, and the multiple photovoltaic panels are combined and guided through a DC combiner box.

[0009] In a preferred embodiment of this invention, the energy storage battery is provided with an energy storage system, and a photovoltaic inverter is also provided between the photovoltaic module and the AC bus. The photovoltaic inverter is electrically connected to both the photovoltaic module and the AC bus. An energy storage converter is provided between the energy storage battery and the AC bus, and an energy management system is electrically connected to the AC bus.

[0010] In a preferred embodiment of this invention, the energy storage converter receives the electrical energy inverted by the photovoltaic module and performs a conversion operation; the energy storage battery receives the electrical energy converted by the energy storage converter; the AC bus is electrically connected to a transformer; the transformer is electrically connected to the power grid; the energy storage converter receives the electrical energy from the energy storage battery and performs a conversion operation; and the load receives the electrical energy converted by the energy storage converter and performs a discharge operation.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, through the design of single-sided and double-sided monocrystalline half-cell modules, enables our photovoltaic modules to adapt to installation environments with varying load-bearing capacities. This allows photovoltaic energy storage charging stations to be applied in more diverse locations, improving their flexibility and versatility. It successfully solves the problem of limited application of traditional module designs in different installation environments, providing a broader scope for the application of photovoltaic energy storage charging stations. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall process provided in this embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the photovoltaic module structure provided in an embodiment of the present invention.

[0015] In the diagram: 1. Energy Management System; 2. Photovoltaic Module; 3. Energy Storage Battery; 4. Load; 5. AC Bus; 6. Energy Storage System; 7. Photovoltaic Inverter; 8. Energy Storage Converter; 9. Transformer;

[0016] 201. Photovoltaic panel; 202. DC combiner box;

[0017] 2011, Single-sided monocrystalline half-cell module; 2012, Double-sided monocrystalline half-cell module. Detailed Implementation

[0018] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0019] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1 to 2As shown in the figure, the power supply component of the photovoltaic energy storage charging station provided by this utility model embodiment includes an AC bus 5, which is electrically connected to a photovoltaic module 2, an energy storage battery 3 and a load 4. The energy storage battery 3 receives electrical energy from the photovoltaic module 2 through the AC bus 5 for energy storage operation. The load 4 includes a charging station, which receives electrical energy from the energy storage battery 3 or the photovoltaic module 2 for discharging and charging operation. The photovoltaic module 2 includes a photovoltaic panel 201, which includes a single-sided monocrystalline half-cell module 2011 and a double-sided monocrystalline half-cell module 2012 for installation on the roof of the charging parking lot canopy or the roof of a nearby building.

[0021] In the aforementioned photovoltaic energy storage charging station power supply component, the AC bus 5 serves as the core for power transmission, and is electrically connected to the photovoltaic module 2, the energy storage battery 3, and the load 4. The energy storage battery 3 receives the electrical energy generated by the photovoltaic module 2 through the AC bus 5 for energy storage, while the load 4 includes the charging station, responsible for receiving electrical energy from the energy storage battery 3 or the photovoltaic module 2 for discharging and charging. The design of the photovoltaic panel 201 fully considers the load-bearing requirements of different installation environments, and therefore includes two types: a single-sided monocrystalline half-cell module 2011 and a double-sided monocrystalline half-cell module 2012.

[0022] Single-sided monocrystalline half-cell module 2011: This module is lightweight and suitable for installation environments with limited load-bearing capacity, such as carport roofs. It can effectively convert solar energy into electrical energy and transmit it to the energy storage battery 3 or directly power the charging station via AC bus 5.

[0023] Bifacial monocrystalline half-cell modules 2012: These modules can be installed in locations with relatively strong load-bearing capacity, such as nearby building rooftops, under specific conditions. These modules can absorb sunlight from both the front and back sides simultaneously, thereby improving overall power generation efficiency.

[0024] By designing the 2011 monofacial monocrystalline half-cell module and the 2012 bifacial monocrystalline half-cell module, our photovoltaic module 2 can adapt to installation environments with different load-bearing capacities. This enables photovoltaic energy storage charging stations to be used in more diverse locations, improving their flexibility and versatility. It successfully solves the problem of limited application of traditional module designs in different installation environments, providing a wider scope for the application of photovoltaic energy storage charging stations.

[0025] In a photovoltaic energy storage charging station, photovoltaic modules 2 generate direct current (DC) power by absorbing solar energy. This power is converted into alternating current (AC) power by an inverter and transmitted to AC bus 5. AC bus 5 acts as a power distribution center, distributing power to energy storage batteries 3 and loads 4. Energy storage batteries 3 receive and store the power from photovoltaic modules 2 for future use. When the charging station needs power, it can draw power from energy storage batteries 3, or directly from photovoltaic modules 2 when the generated power is sufficient. This design allows the power supply components of the photovoltaic energy storage charging station to flexibly adapt to the load-bearing requirements of different installation environments while ensuring an efficient and stable power supply. Whether on a carport roof or a nearby building roof, photovoltaic power generation and energy storage functions can be achieved, providing reliable power support for the charging station.

[0026] In this embodiment, the single-sided monocrystalline half-cell module 2011 has a peak capacity of 445 watts per cell. The double-sided monocrystalline half-cell module 2012 also has a peak capacity of 445 watts per cell.

[0027] The 2011 monofacial monocrystalline half-cell modules, deployed for lightweight roofs, boast a peak output of 445 watts per cell, demonstrating excellent power generation performance. For concrete roofs with greater load-bearing capacity, we plan to install the 2012 bifacial monocrystalline half-cell modules, also with a peak capacity of 445 watts per cell, to fully utilize their bifacial light-receiving characteristics and further improve overall power generation efficiency. This approach not only considers the load-bearing characteristics of different roofs but also fully leverages the advantages of both types of modules, ensuring the safe and stable operation of the photovoltaic system while achieving high-efficiency power generation.

[0028] In this embodiment, multiple photovoltaic panels 201 are provided, and the multiple photovoltaic panels 201 are combined and guided through a DC combiner box 202. Several photovoltaic panels 201 are arranged, and these photovoltaic panels 201 achieve concentrated current collection and effective current guidance through a precisely designed DC combiner box 202, thereby ensuring stable power transmission and efficient utilization.

[0029] In this embodiment, the energy storage battery 3 is equipped with an energy storage system 6. A photovoltaic inverter 7 is also provided between the photovoltaic module 2 and the AC bus 5. The photovoltaic inverter 7 is electrically connected to both the photovoltaic module 2 and the AC bus 5. An energy storage converter 8 is provided between the energy storage battery 3 and the AC bus 5. The AC bus 5 is electrically connected to an energy management system 1. The energy storage converter 8 receives the inverted electrical energy from the photovoltaic module 2 and performs a conversion operation. The energy storage battery 3 receives the converted electrical energy from the energy storage converter 8. The AC bus 5 is electrically connected to a transformer 9, which is electrically connected to the power grid. The energy storage converter 8 receives the electrical energy from the energy storage battery 3 and performs a conversion operation. The load 4 receives the converted electrical energy from the energy storage converter 8 and performs a discharge operation.

[0030] Photovoltaic modules 2 generate direct current (DC) power by absorbing solar energy. These photovoltaic panels 201 do not operate in isolation; multiple panels are connected and the current is collected and effectively guided through a DC combiner box 202 to ensure stable power transmission. The DC power needs to be converted by a photovoltaic inverter 7. The photovoltaic inverter 7 acts as a bridge between the photovoltaic modules 2 and the AC bus 5, playing a crucial role in converting DC to AC. This allows the power generated by the photovoltaic modules 2 to smoothly enter the AC bus 5, preparing for subsequent power distribution and use. The AC bus 5, as the hub of power transmission, connects not only the photovoltaic inverter 7 but also the energy storage converter 8, the energy management system 1, and the transformer 9. The energy storage converter 8 is the key device between the energy storage battery 3 and the AC bus 5. The energy storage converter 8 receives the AC power converted by the photovoltaic inverter 7 and performs necessary conversion operations to ensure the power meets the charging needs of the energy storage battery 3. Simultaneously, the energy storage converter 8 can also receive electrical energy from the energy storage battery 3 and perform reverse conversion operation to release the stored electrical energy into the AC bus 5. The energy management system 1 monitors and manages the electrical energy of the entire system in real time. Based on the power generation of the photovoltaic module 2, the energy storage status of the energy storage battery 3, and the needs of the load 4, it intelligently schedules the distribution and use of electrical energy to ensure stable operation and efficient utilization of the system. The transformer 9 is connected to the AC bus 5, and its main function is to transform the voltage of the electrical energy on the AC bus 5 to adapt to the grid connection requirements. Through the transformer 9, the electrical energy generated by the photovoltaic energy storage charging station can be smoothly connected to the grid, achieving interconnection with the grid. Finally, when the charging station needs power, the energy storage converter 8 receives electrical energy from the energy storage battery 3 and performs conversion operation to release the stored electrical energy into the AC bus 5. The load 4 device receives the converted electrical energy from the energy storage converter 8 through the interface connected to the AC bus 5 and performs discharge operation to meet its charging needs.

[0031] The working principle of this utility model:

[0032] The AC bus 5, as the core of power transmission, is electrically connected to the photovoltaic module 2, the energy storage battery 3, and the load 4. The energy storage battery 3 receives electrical energy generated by the photovoltaic module 2 through the AC bus 5 for energy storage, while the load 4 includes a charging station, responsible for receiving electrical energy from the energy storage battery 3 or the photovoltaic module 2 for charging and discharging. The photovoltaic panel 201 is designed to fully consider the load-bearing requirements of different installation environments, and therefore includes two types: single-sided monocrystalline half-cell module 2011 and double-sided monocrystalline half-cell module 2012. Single-sided monocrystalline half-cell module 2011: This module is lightweight and suitable for installation environments with limited load-bearing capacity, such as carport roofs. It can effectively convert solar energy into electrical energy and transmit it to the energy storage battery 3 or directly power the charging station through the AC bus 5. Double-sided monocrystalline half-cell module 2012: Under certain conditions, it can be installed in locations with slightly stronger load-bearing capacity, such as nearby building roofs. This module can absorb sunlight from both the front and back sides simultaneously, thereby improving overall power generation efficiency. By designing the 2011 monofacial monocrystalline half-cell module and the 2012 bifacial monocrystalline half-cell module, our photovoltaic module 2 can adapt to installation environments with different load-bearing capacities. This enables photovoltaic energy storage charging stations to be used in more diverse locations, improving their flexibility and versatility. It successfully solves the problem of limited application of traditional module designs in different installation environments, providing a wider scope for the application of photovoltaic energy storage charging stations.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power supply component for a photovoltaic energy storage charging station, comprising an AC bus (5), characterized in that: The AC bus (5) is electrically connected to the photovoltaic module (2), the energy storage battery (3) and the load (4) respectively. The energy storage battery (3) receives the electrical energy of the photovoltaic module (2) through the AC bus (5) for energy storage operation. The load (4) includes a charging station. The charging station receives the electrical energy of the energy storage battery (3) or the photovoltaic module (2) for discharging and charging operation. The photovoltaic module (2) includes a photovoltaic panel (201). The photovoltaic panel (201) includes a single-sided monocrystalline half-cell module (2011) and a double-sided monocrystalline half-cell module (2012) for installation on the roof of the charging parking lot canopy or the roof of a nearby building.

2. The power supply component for a photovoltaic energy storage charging station as described in claim 1, characterized in that: The single-sided monocrystalline half-cell module (2011) has a single-cell capacity of 445 watts peak.

3. The power supply component for a photovoltaic energy storage charging station as described in claim 1, characterized in that: The single-cell capacity of the bifacial monocrystalline half-cell module (2012) is 445 watts peak.

4. The power supply component for a photovoltaic energy storage charging station as described in claim 1, characterized in that: The photovoltaic panel (201) is provided in multiple units, and the multiple photovoltaic panels (201) are combined and guided through a DC combiner box (202).

5. A power supply component for a photovoltaic energy storage charging station as described in claim 4, characterized in that: The energy storage battery (3) is equipped with an energy storage system (6), and a photovoltaic inverter (7) is also provided between the photovoltaic module (2) and the AC bus (5). The photovoltaic inverter (7) is electrically connected to the photovoltaic module (2) and the AC bus (5) respectively. An energy storage converter (8) is provided between the energy storage battery (3) and the AC bus (5). An energy management system (1) is electrically connected to the AC bus (5).

6. A power supply component for a photovoltaic energy storage charging station as described in claim 5, characterized in that: The energy storage converter (8) receives the power after the photovoltaic module (2) is inverted and performs a power conversion operation. The energy storage battery (3) receives the power after the energy storage converter (8) is converted. The AC bus (5) is electrically connected to the transformer (9). The transformer (9) is electrically connected to the power grid. The energy storage converter (8) receives the power after the energy storage battery (3) is converted and performs a power conversion operation. The load (4) receives the power after the energy storage converter (8) is converted and performs a discharge operation.

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