Photovoltaic electric energy balance allocation method, device, equipment and storage medium

Abstract

The invention discloses a photovoltaic electric energy balance allocation method, device and equipment and a storage medium, and relates to the technical field of new energy management, and the allocation method comprises the following steps: obtaining power generation power parameters of power generation equipment, the power generation equipment comprising a roof photovoltaic module, a side slope photovoltaic module and a photovoltaic power generation module of a photovoltaic storage and charging integrated system; acquiring power consumption data of a low-voltage side load connected with the power generation equipment; whether an energy storage instruction is generated or not is recognized according to the power consumption data and the generated power parameters, and when the energy storage instruction is recognized, power generation equipment is controlled to transmit converted power to energy storage equipment. By monitoring the actual data of the supply and demand ends in real time, charging and discharging of remote photovoltaic power generation are flexibly and efficiently allocated, the scheduling scheme of power charging and discharging and energy storage is optimized, energy loss caused by charging and discharging of photovoltaic power generation is reduced, and new energy consumption is maximized on the basis of guaranteeing the power supply reliability of key loads.

Description

Technical Field

[0001] The present invention relates to the field of new energy management technology, and in particular to a photovoltaic power balancing and allocation method, device, equipment and storage medium. Background Art Rooftop photovoltaic refers to photovoltaic modules installed on the sloping roof of a building, which generate electricity through solar energy. These photovoltaic modules are usually installed on the sloping roof of a building, using solar energy to generate electricity and provide electricity for the building. According to regulations, when industrial, commercial and public distributed photovoltaic projects are constructed on buildings, the installation height of photovoltaic modules should not exceed 30 cm from the roof; for residential distributed photovoltaic projects, it should not exceed 2 meters.

[0002] The photovoltaic storage and charging integrated system is a comprehensive energy system that combines photovoltaic power generation, energy storage systems and electric vehicle charging facilities. It generates electricity through photovoltaic power generation, and the excess electricity is stored in energy storage equipment for power supply and charging when needed. This model is of great significance in balancing power supply and demand, peak-valley electricity price arbitrage, and achieving carbon neutrality goals.

[0003] The two existing systems generally operate independently, which results in a small power supply range for both systems and low energy efficiency. The power of photovoltaic power generation equipment in the integrated photovoltaic storage and charging system is mostly directly stored in the energy storage component, and then output when the charging pile is charging. In this process, the power converted by the photovoltaic power generation equipment is charged and discharged at least twice, resulting in a large power transportation loss and affecting energy efficiency. Summary of the invention

[0004] The object of the present invention is to provide a photovoltaic power balancing and allocation method, device, equipment and storage medium to solve the problems raised in the above background technology.

[0005] In the first aspect, to achieve the above-mentioned purpose, the present invention provides the following technical solution: a photovoltaic power balance allocation method, comprising the following steps: S1. Obtaining power generation parameters converted by power generation equipment, wherein the power generation equipment includes photovoltaic power generation components on the roof, slope and carport side of the integrated photovoltaic storage and charging system; S2, obtaining power consumption data of the low voltage side load; S3. Identify whether to generate an energy storage instruction based on the power consumption data and the power generation parameters, and when the energy storage instruction is identified, control the power converted by the power generation equipment to be transmitted to the energy storage equipment.

[0006] Preferably, the step of identifying whether to generate an energy storage instruction based on the power consumption data and the power generation parameters includes the following: obtaining a difference between the power consumption data and the generated power parameter; When it is confirmed that the difference is a positive number, generating an energy storage instruction; When it is confirmed that the difference is a negative number or zero, a direct charging instruction is generated, wherein the direct charging instruction is to directly supply the generated power of the integrated photovoltaic storage and charging system to the low-voltage side load for consumption in a direct current manner.

[0007] In a second aspect, the present invention provides a photovoltaic power balance adjustment device, such as the photovoltaic power balance adjustment method described in the above invention, wherein the adjustment device comprises: Photovoltaic power generation components are mainly used to convert light energy into electrical energy and provide power supply for the power supply system. The photovoltaic power generation components are connected to a power collector, which is used to obtain and transmit the power generation parameters; A power transmission component, used to transmit the power converted by the photovoltaic power generation component and obtain power consumption data; Power storage components are used to store electrical energy and output electrical energy to ensure stable power supply when the demand for power consumption exceeds the power generation; Inverter components are used to convert the types of electrical energy to improve system operation efficiency and safety; The power control component is used to regulate power delivery in real time based on power generation parameters, power consumption data and energy storage data.

[0008] Preferably, the photovoltaic power generation assembly includes power generation equipment arranged on the carport in the integrated photovoltaic storage and charging system and power generation equipment respectively arranged on the top and slope of the building.

[0009] Preferably, the power transmission component includes a high-voltage transmission line and a low-voltage transmission line, the high-voltage transmission line is a 10 kV busbar, which is used for high-efficiency power transmission, and the low-voltage transmission line includes a 0.4 kV busbar and a DC busbar, and the 0.4 kV busbar and the DC busbar are used for low-efficiency power transmission. The 10 kV busbar and the 0.4 kV busbar are arranged at one end of the power generation equipment on the building or the slope, and the DC busbar is arranged at one end of the integrated photovoltaic storage and charging system.

[0010] Preferably, the consumer loads to which the power generation equipment of the integrated photovoltaic storage and charging system is directly connected through the DC bus include charging piles, and the consumer loads to which the power generation equipment on the top and slope of the building is connected through an inverter include various daily electricity consumption.

[0011] Preferably, the power transmission component also includes a 0.4 kV emergency bus for transmitting power to public lighting and fire protection.

[0012] Preferably, the power control component is connected to the photovoltaic power generation component, the power transmission component, the power storage component and the inverter component.

[0013] In a third aspect, the present invention provides a computer device, comprising a memory, a processor and a transceiver which are communicatively connected in sequence, wherein the memory is used to store a computer program, the transceiver is used to send and receive signals, and the processor is used to read the computer program to execute a photovoltaic power balancing and dispatching method as described in any one of the above invention contents.

[0014] In a fourth aspect, the present invention provides a storage medium having instructions stored thereon, and when the instructions are run on a computer, the photovoltaic power balancing and dispatching method as described in any one of the above-mentioned invention contents is executed.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention connects the power generation equipment on the top and slope of the building with the two busbars of the power generation equipment in the integrated photovoltaic storage and charging system, thereby expanding the power supply range of the photovoltaic equipment on both sides, and by setting up a power control component, the power generation parameters converted by the power generation equipment and the power consumption data of the low-voltage side load are obtained in real time, and the optimized energy storage charging and discharging strategy is obtained. When the low-voltage side load consumption is sufficient, the photovoltaic power is stored in the energy storage component, and the power generated by the power generation equipment is directly consumed first, which reduces the energy loss caused by charging and discharging, and can also effectively balance the supply and demand of electricity and promote sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the flow chart of the photovoltaic power balance allocation method of the present invention; Figure 2 It is a structural schematic diagram of the photovoltaic power balancing and allocation device of the present invention.

[0017] Figure 2 In: 201, inverter component; 202, power control component; 203, integrated photovoltaic storage and charging system; 204, power generation equipment; 205, charging pile; 206, daily electricity consumption; 207, public lighting; 208, adapter. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1 The present invention provides a technical solution: a photovoltaic power balance allocation method, comprising the following contents: Step S1, obtaining power generation parameters converted by power generation equipment, wherein the power generation equipment includes photovoltaic power generation components on the roof, slope and the shed side of the photovoltaic storage and charging integrated system; Step S2, obtaining power consumption data of the low voltage side load; Step S3: identifying whether to generate an energy storage instruction based on the power consumption data and the power generation parameters, and when the energy storage instruction is identified, controlling the power converted by the power generation equipment to be transmitted to the energy storage equipment.

[0020] The step S3 described above of identifying whether to generate an energy storage instruction based on the power consumption data and the power generation parameters includes the following contents: obtaining a difference between the power consumption data and the generated power parameter; When it is confirmed that the difference is a positive number, generating an energy storage instruction; When it is confirmed that the difference is a negative number or zero, a direct charging instruction is generated, wherein the direct charging instruction is to directly supply the generated power of the integrated photovoltaic storage and charging system to the low-voltage side load for consumption in a direct current manner.

[0021] The above-mentioned allocation method is based on the integrated photovoltaic storage and charging system. When a direct charging command is received, the power generated by the photovoltaic power generation components of the carport is directly transmitted to the charging pile for charging and consumption without passing through the inverter component. Compared with the existing structure, in which the photovoltaic power generation components of the carport are stored in the power storage component and then transmitted to the charging pile through the inverter for use, the conversion efficiency is improved by 3% to 5%.

[0022] Second, as Figure 2 As shown, the present invention provides a photovoltaic power balance adjustment device, such as the photovoltaic power balance adjustment method described in the above invention content, the adjustment device comprises: Photovoltaic power generation components are mainly used to convert light energy into electrical energy and provide power supply for the power supply system. The photovoltaic power generation components are connected to a power collector, which is used to obtain and transmit the power generation parameters; A power transmission component, used to transmit the power converted by the photovoltaic power generation component and obtain power consumption data; A power storage component (not shown in the figure) is used to store electric energy and output electric energy to ensure stable power supply when the demand for power consumption is higher than the power generation; The inverter component 201 is used to convert the type of electric energy to improve the efficiency and safety of the system operation, and is composed of an inverter connected to a switch; The power control component 202 is used to control power transmission in real time according to power generation parameters, power consumption data and energy storage data.

[0023] Specifically, the above components mainly include: The photovoltaic power generation assembly includes the power generation equipment 204 arranged on the carport in the integrated photovoltaic storage and charging system 203 and the power generation equipment 204 respectively arranged on the top of the building and the slope.

[0024] The power transmission component includes a high-voltage transmission line and a low-voltage transmission line. The high-voltage transmission line is a 10 kV busbar for high-efficiency power transmission. The low-voltage transmission line includes a 0.4 kV busbar and a DC busbar. The 0.4 kV busbar and the DC busbar are used for low-efficiency power transmission. The 10 kV busbar and the 0.4 kV busbar are arranged at one end of the power generation equipment on the building or the slope, and the DC busbar is arranged at one end of the integrated photovoltaic storage and charging system.

[0025] The power generation equipment 204 of the integrated photovoltaic storage and charging system 203 directly connects the consumption loads through the DC bus including charging piles 205 , and the power generation equipment 204 on the top and slope of the building connects the consumption loads through the inverter including various daily electricity 206 .

[0026] The power transmission assembly also includes a 0.4 kV emergency bus for transmitting power to public lighting 207 and fire protection power supply.

[0027] The power control component 202 is connected to the photovoltaic power generation component, the power transmission component, the power storage component and the inverter component through an adapter 208, wherein the adapter includes a power protocol intelligent gateway.

[0028] The above components constitute a photovoltaic power balance and allocation device, such as Figure 2 As shown, the photovoltaic power generation equipment 204 on the carport side is directly connected to the charging pile 205 and the power storage component (not shown in the figure) through the DC bus, and the charging pile 205 and the power storage component are converged to the 0.4 kV low-voltage side through the AC bus; the photovoltaic power generation equipment 204 on the slope and the roof is converged to the 0.4 kV low-voltage side through the AC bus, and the daily electricity 206 such as air conditioning, lighting, electricity for the comprehensive building, and domestic water pumps is connected to the 0.4 kV low-voltage side, and the evacuation, gas station, charging station, public lighting 207 and diesel generators are connected to the 0.4 kV emergency bus.

[0029] Among them, the above-mentioned diesel generator can provide emergency power supply to the emergency bus when the photovoltaic power supply fails, thus achieving emergency mode.

[0030] In a third aspect, the present invention provides a computer device, comprising a memory, a processor and a transceiver which are communicatively connected in sequence, wherein the memory is used to store a computer program, the transceiver is used to send and receive signals, and the processor is used to read the computer program to execute a photovoltaic power balancing and dispatching method as described in any one of the above invention contents.

[0031] In a fourth aspect, the present invention provides a storage medium having instructions stored thereon, and when the instructions are run on a computer, the photovoltaic power balancing and dispatching method as described in any one of the above-mentioned invention contents is executed.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic power balance allocation method, characterized in that: The deployment method includes the following steps: S1. Obtain power generation parameters of power generation equipment, wherein the power generation equipment includes photovoltaic power generation components of roof photovoltaic, slope photovoltaic and photovoltaic storage and charging integrated system; S2. Obtaining power consumption data of the low-voltage side load connected to the power generation equipment; S3. Identify whether to generate an energy storage instruction based on the power consumption data and the power generation parameters, and when the energy storage instruction is identified, control the power generation equipment to transmit the converted power to the energy storage equipment.

2. A photovoltaic power balance and allocation method according to claim 1, characterized in that: The step of identifying whether to generate an energy storage instruction based on the power consumption data and the power generation parameters includes the following: obtaining a difference between the power consumption data and the generated power parameter; When it is confirmed that the difference is a positive number, generating an energy storage instruction; When it is confirmed that the difference is a negative number or zero, a direct charging instruction is generated, wherein the direct charging instruction is to directly supply the generated power of the integrated photovoltaic storage and charging system to the low-voltage side load for consumption in a direct current manner.

3. A photovoltaic power balancing and allocation device, characterized in that: Used to implement the photovoltaic power balance allocation method according to any one of claims 1 to 2, the allocation device comprises: A photovoltaic power generation component is used to convert light energy into electrical energy and provide power supply for the power supply system. The photovoltaic power generation component is connected to a power collector, and the power collector is used to collect the power generation parameters of the photovoltaic power generation component; A power transmission component, used to transmit the power converted by the photovoltaic power generation component and obtain power consumption data; A power storage component, used to store electric energy and output electric energy when the demand for electric energy consumption is higher than the power generation of the photovoltaic power generation component. The power storage component is connected to a power detector, which is used to monitor the energy storage data of the power storage component; An inverter component, connected to the photovoltaic power generation component and the power transmission component, for converting the type of electric energy; The power control component is used to regulate power delivery in real time based on power generation parameters, power consumption data and energy storage data.

4. A photovoltaic power balancing and adjusting device according to claim 3, characterized in that: The photovoltaic power generation assembly includes a power generation device arranged on a carport, a power generation device arranged on the top of a designated building, and a power generation device arranged on a designated slope in a photovoltaic storage and charging integrated system.

5. A photovoltaic power balancing and adjusting device according to claim 4, characterized in that: The power transmission component includes a high-voltage transmission line and a low-voltage transmission line. The high-voltage transmission line is a 10 kV busbar for high-voltage power transmission. The low-voltage transmission line includes a 0.4 kV busbar and a DC busbar. The 0.4 kV busbar and the DC busbar are used for low-voltage power transmission. The 10 kV busbar and the 0.4 kV busbar are arranged at one end of the power generation equipment on the top of a designated building or on a designated slope, and the DC busbar is arranged at one end of the integrated photovoltaic storage and charging system.

6. A photovoltaic power balancing and adjusting device according to claim 5, characterized in that: The consumption loads to which the power generation equipment of the integrated photovoltaic storage and charging system is directly connected through the DC bus include charging piles, and the consumption loads to which the power generation equipment on the top or slope of the designated building is connected through the inverter component include various daily electricity consumption.

7. A photovoltaic power balancing and adjusting device according to claim 6, characterized in that: The power transmission assembly also includes a 0.4 kV emergency bus for transmitting power to public lighting and fire protection.

8. A photovoltaic power balancing and adjusting device according to claim 7, characterized in that: The power control component is respectively connected to the photovoltaic power generation component, the power transmission component, the power storage component and the inverter component through an inverter.

9. A computer device, characterized in that , comprising a memory, a processor and a transceiver which are communicatively connected in sequence, wherein the memory is used to store a computer program, the transceiver is used to send and receive signals, and the processor is used to read the computer program and execute the method as claimed in any one of claims 1 to 2.

10. A storage medium, characterized in that The storage medium stores instructions, and when the instructions are executed on a computer, the method described in any one of claims 1 to 2 is executed.

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