Rural household light storage and charging integrated system

Abstract

The utility model discloses a rural household optical storage and charging integrated system, which relates to the technical field of optical storage and charging integration and comprises a power distribution network, a household electricity meter and a charging pile electricity meter, the power distribution network is electrically connected with the household electricity meter and the charging pile electricity meter respectively, the household electricity meter is electrically connected with a first electric quantity monitor through a household circuit breaker, and the first electric quantity monitor is electrically connected with a second electric quantity monitor through a second circuit breaker. The other end of the first electric quantity monitor is connected with a first circuit breaker and a second circuit breaker through wires, and the charging pile electric meter is electrically connected with the second electric quantity monitor through the charging pile circuit breaker. According to the utility model, photovoltaic, energy storage, electric vehicle charging and household electricity utilization are systematically integrated, and economic benefit or household zero electricity purchase is realized through a reasonable control strategy, so that the dependence on a power grid is reduced, and meanwhile, the photovoltaic power generation does not generate pollutants and safety problems brought by a traditional power generation technology, and the system is energy-saving and environment-friendly. Noise pollution and emission of gases such as sulfur dioxide, nitrogen oxide and carbon dioxide are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic storage and charging integration, and in particular to a photovoltaic storage and charging integration system for rural households. Background Art

[0002] With the continuous improvement of people's living standards and people's high attention to the ecological environment, electric vehicles have gradually entered people's daily lives. More and more electric vehicles are gradually replacing traditional fuel vehicles. As more and more new energy vehicles are available, their dependence on the power grid is increasing. Since the photovoltaic conditions in rural areas are suitable, rural residents will install charging piles for charging electric vehicles on their own land and set up an integrated photovoltaic storage and charging system.

[0003] The integrated photovoltaic storage and charging system refers to a new photovoltaic system that includes a distribution network, photovoltaic power generation units, storage units and charging units. When the traditional integrated photovoltaic storage and charging system is in use, the photovoltaic power generation unit continuously powers the storage unit and cannot be changed according to actual usage needs. It is difficult to adapt to the different needs of peak and valley electricity consumption and has poor adaptability. Therefore, an integrated photovoltaic storage and charging system for rural households is proposed. Utility Model Content

[0004] The purpose of the present invention is to solve the problems mentioned in the above background technology and to propose an integrated photovoltaic storage and charging system for rural households.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rural household photovoltaic storage and charging integrated system includes a distribution network, a household electricity meter and a charging pile electricity meter, the distribution network is electrically connected to the household electricity meter and the charging pile electricity meter respectively, the household electricity meter is electrically connected to a first power monitor through a household circuit breaker, the other end of the first power monitor is electrically connected to a first circuit breaker and a second circuit breaker respectively through a wire, the charging pile electricity meter is electrically connected to a second power monitor through a charging pile circuit breaker, the other end of the second power monitor is electrically connected to a third circuit breaker, a fourth circuit breaker and a fifth circuit breaker respectively through a wire, the other end of the first circuit breaker is connected to a photovoltaic power generation unit, the other end of the second circuit breaker is connected to a household appliance, the other end of the third circuit breaker is connected to an energy storage unit, the other end of the fourth circuit breaker is connected to a charging gun, and the other end of the fifth circuit breaker is electrically connected to the first power monitor, the first circuit breaker and the second circuit breaker respectively.

[0007] Preferably, the first electric quantity monitor and the second electric quantity monitor are both mutual inductors.

[0008] Preferably, the photovoltaic power generation unit is a solar power generation panel.

[0009] Preferably, the energy storage unit is an energy storage battery.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This utility model integrates photovoltaics, energy storage, electric vehicle charging, and household electricity consumption into a system, and through reasonable control strategies, achieves economic benefits or zero household electricity purchase, thereby reducing dependence on the power grid. At the same time, photovoltaic power generation does not produce pollutants and safety problems caused by traditional power generation technologies, and avoids noise pollution and the emission of gases such as sulfur dioxide, nitrogen oxides, and carbon dioxide. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] In the figure: 1 distribution network, 2 household electricity meter, 3 charging pile electricity meter, 4 first power monitor, 5 second power monitor, 6 household circuit breaker, 7 charging pile circuit breaker, 8 first circuit breaker, 9 photovoltaic power generation unit, 10 second circuit breaker, 11 household appliances, 12 third circuit breaker, 13 energy storage unit, 14 fourth circuit breaker, 15 charging gun, 16 fifth circuit breaker. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Reference Figure 1 As shown, a rural household photovoltaic storage and charging integrated system includes a distribution network 1, a household electricity meter 2 and a charging pile electricity meter 3, wherein the distribution network 1 is electrically connected to the household electricity meter 2 and the charging pile electricity meter 3 respectively, the household electricity meter 2 is electrically connected to the first power monitor 4 through the household circuit breaker 6, the other end of the first power monitor 4 is electrically connected to the first circuit breaker 8 and the second circuit breaker 10 respectively through wires, the charging pile electricity meter 3 is electrically connected to the second power monitor 5 through the charging pile circuit breaker 7, the other end of the second power monitor 5 is electrically connected to the third circuit breaker 12, the fourth circuit breaker 14 and the fifth circuit breaker 16 respectively through wires, the other end of the first circuit breaker 8 is connected to the photovoltaic power generation unit 9, the other end of the second circuit breaker 10 is connected to the household appliance 11, the other end of the third circuit breaker 12 is connected to the energy storage unit 13, the other end of the fourth circuit breaker 14 is connected to the charging gun 15, and the other end of the fifth circuit breaker 16 is electrically connected to the first power monitor 4, the first circuit breaker 8 and the second circuit breaker 10 respectively.

[0016] The first power monitor 4 and the second power monitor 5 are both mutual inductors, which can detect the magnitude and direction of the current passing through, provide data, and are also used to control the opening and closing of the circuit breaker.

[0017] The photovoltaic power generation unit 9 is a solar power generation panel installed on the roof of a rural resident user.

[0018] The energy storage unit 13 is an energy storage battery, which can be a lead-acid battery or a nickel-based battery.

[0019] Working process and principle:

[0020] During the off-peak period at night, the household circuit breaker 6, the charging pile circuit breaker 7, the third circuit breaker 12, and the fourth circuit breaker 14 are closed, and the fifth circuit breaker 16 is open. The photovoltaic power generation unit 9 does not generate electricity, and the distribution network 1 supplies power to the charging pile 15 and the household appliance 11, and charges the energy storage unit 13.

[0021] During the daytime photovoltaic power generation period, when the first power monitor 4 is greater than or equal to 0, the charging pile circuit breaker 7 is disconnected, and the household circuit breaker 6, the first circuit breaker 8, the third circuit breaker 12, and the fifth circuit breaker 16 are closed. The photovoltaic power generation unit 9 and the energy storage unit 13 jointly supply power to the charging pile 15 and the household appliance 11. When the first power monitor 5 is less than 0 or a negative value, the third circuit breaker 12 needs to be disconnected, and the excess power of the photovoltaic power generation unit 9 is connected to the grid, thereby achieving profit.

[0022] During peak hours in the evening, the charging pile circuit breaker 7 and the fourth circuit breaker 14 are disconnected, and the household circuit breaker 6 and the fifth circuit breaker 16 are closed. The energy storage unit 13 supplies power to the household appliance 11. If the first power monitor 4 is less than 0 or a negative value at this time, the fourth circuit breaker 14 can be opened or the output power of the third circuit breaker 12 circuit can be reduced, as long as the first power monitor 5 is not negative.

[0023] When the values ​​of the first power monitor 4 and the second power monitor 5 are both greater than 0, the fifth circuit breaker 16 needs to be disconnected, and the power distribution network 1 supplies power to each of them.

[0024] Among them, the second power monitor 5 is strictly prohibited from being a negative value. When a negative value is detected, the charging pile circuit breaker 7 needs to be disconnected to prevent the energy storage unit 13 from being connected to the grid.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rural household solar storage and charging integrated system, characterized by: The invention comprises a distribution network (1), a household electricity meter (2) and a charging pile electricity meter (3), wherein the distribution network (1) is electrically connected to the household electricity meter (2) and the charging pile electricity meter (3), respectively; the household electricity meter (2) is electrically connected to a first electricity quantity monitor (4) via a household circuit breaker (6); the other end of the first electricity quantity monitor (4) is respectively connected to a first circuit breaker (8) and a second circuit breaker (10) via a wire; the charging pile electricity meter (3) is electrically connected to a second electricity quantity monitor (5) via a charging pile circuit breaker (7); the other end of the second electricity quantity monitor (5) is electrically connected to a second electricity quantity monitor (5) via a wire; The first circuit breaker (8) is connected to a photovoltaic power generation unit (9), the second circuit breaker (10) is connected to a household appliance (11), the third circuit breaker (12) is connected to an energy storage unit (13), the fourth circuit breaker (14) is connected to a charging gun (15), and the fifth circuit breaker (16) is electrically connected to the first power monitor (4), the first circuit breaker (8) and the second circuit breaker (10).

2. The rural household solar storage and charging integrated system according to claim 1, characterized in that: The first electric quantity monitor (4) and the second electric quantity monitor (5) are both mutual inductors.

3. The rural household solar storage and charging integrated system according to claim 1, characterized in that: The photovoltaic power generation unit (9) is a solar power generation panel.

4. The rural household photovoltaic storage and charging integrated system according to claim 1, characterized in that: The energy storage unit (13) is an energy storage battery.

Images