CN206834762U - A kind of domestic energy-saving electricity system and zonule electric power system - Google Patents

Abstract

The utility model relates to the technical field of electric power supply, and discloses a household energy-saving power consumption system, comprising: a controller, a storage battery pack, and an inverter. When the power is on, the battery pack is controlled to be powered off from the mains grid and stored. When the power on the mains grid is peak power, the electric energy stored in the battery pack is converted into the AC power required by the user's load through the inverter to meet the user's power demand. Also disclosed is a small-area power supply system, including multiple regional users, some or all of which have the above-mentioned household energy-saving power consumption system. Store electrical energy; when the electricity on the mains grid is peak, the battery pack in the user's home is converted into alternating current through the inverter and sent to the regional grid. The utility model only uses the valley electricity of the mains grid, saves electricity charges, and plays a peak-shaving role for the national grid.

Description

A household energy-saving electricity system and a small-area power supply system

technical field

The utility model relates to the technical field of electric power supply, in particular to a household energy-saving power consumption system and a small-area power supply system that can play a role in peak regulation for the national grid.

Background technique

The State Grid supplies power to users to meet the needs of production and life. During the day, the electricity consumption is large, and the power generation equipment needs to be operated at a high load to meet the user's electricity demand; while the electricity consumption is low at night, the power generation equipment will be idle, so Resulting in a low comprehensive utilization rate of power generation equipment. For example, hydroelectric power stations, when electricity consumption is low at night, the dam has to store a high amount of water, which greatly increases the cost of building the dam. Due to the unbalanced power consumption, the peak power provided by the State Grid during the day with more power consumption has a higher electricity cost, and the valley power provided at night with less power consumption has a lower electricity cost.

Utility model content

The utility model aims at the problems in the prior art that the comprehensive utilization rate of power generation equipment is low and the peak electricity charges for users are high due to the unbalanced power consumption during the day and night in the prior art. Home energy-saving power consumption system and small-area power supply system for peak shaving by State Grid.

The technical scheme that the utility model adopts is:

A household energy-saving power consumption system, characterized in that it includes: a controller, a battery pack, and an inverter. The controller is connected to the mains power grid, and controls the battery pack when it detects that the electricity on the mains power grid is valley power. Powered off from the mains grid and stored, the battery pack is connected to the inverter, and the inverter is connected to the user load. The inverter will convert the AC power required by the user load to meet the user's power demand.

Furthermore, when the controller detects that the electricity on the mains grid is peak power, it turns off the switch for the user to power off from the mains grid, and the controller controls the discharge of the battery pack, and converts it into the electricity required by the user's load through the inverter. AC power; when the controller detects that the power on the mains grid is valley power, the controller controls the battery pack to store power, closes the switch connecting the user load to the mains grid, and the user load uses the electricity on the mains grid to meet the demand.

Further, it also includes a solar battery, the solar battery is connected to the controller and the inverter, and the controller controls user loads to use the electric energy of the solar battery preferentially.

Further, a wind power generation system is included, the wind power generation system is connected with a controller and an inverter, and the controller controls user loads to preferentially use the electric energy of the wind power generation system.

A small area power supply system, characterized in that it includes a plurality of regional users, some or all of which have the household energy-saving power consumption system according to claim 1, when the controller detects that the electricity on the mains grid is valley power , the battery pack in the user's home stores electric energy; when the electricity on the mains grid is peak power, the battery pack in the user's home is converted into alternating current through the inverter and sent to the regional grid for power consumption by the user's load on the regional grid .

Further, the household energy-saving power consumption system of some users in a small area also includes solar cells, and the household energy-saving power consumption system of another part of users in a small area also includes a wind power generation system. When the power is peak power, it is converted into alternating current by the inverter and then sent to the regional power grid to meet the needs of user loads in the region.

Furthermore, each user has an electric meter on the line that transmits electricity to the regional power grid to record the electricity on the grid.

Compared with the prior art, the utility model obviously has the following beneficial effects:

1. The user side assists the national grid to store the valley power at night through the energy storage battery pack, and assists the national grid in peak regulation, which has great economic value and social significance.

2. Users who have installed this energy-saving electricity system only need to use low-priced valley electricity, which greatly reduces electricity costs.

3. The small area power supply system of the present invention connects the power grids of users in the small area to form a small area power grid, and utilizes the electric energy stored by each user more effectively.

4. The small area power supply system is also equipped with solar cells and wind power generation systems, and the auxiliary battery pack supplies power to the regional grid. When the sun is sufficient, users with solar cells can deliver more power to the regional grid. When there is no sun , Often the wind is strong, and users who install wind power generation systems can transmit more electric energy to the regional power grid, so as to achieve complementarity and meet the electricity demand in small areas.

Description of drawings

Fig. 1 is a schematic diagram of Embodiment 1 of a user's energy-saving power consumption system;

Fig. 2 is a schematic diagram of Embodiment 2 of the user's energy-saving electricity consumption system;

Figure 3 is a schematic diagram of a small area power supply system.

In the figure, 1. Controller, 2. Battery pack, 3. Inverter, 4. Solar battery, 5. User load, 6. Wind power generation system, 7. Electric meter.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the description of the present utility model, it should be understood that in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

Example 1

The household energy-saving power consumption system shown in Figure 1 includes: a controller 1, a storage battery pack 2, and an inverter 3. The controller 1 is connected to the mains grid, and when it detects that the electricity on the mains grid is valley power, it controls The battery pack 2 is powered off from the mains power grid and stored. The battery pack 2 is connected to the inverter 3, and the inverter 3 is connected to the user load 5. When the power on the mains grid is peak, the electric energy stored in the battery pack 2 passes The inverter 3 will convert the AC power required by the user load 5 to meet the user's electricity demand.

Specifically, when the power consumption is low, that is, the mains power grid is the valley power, the controller 1 controls the battery pack 2 to charge, stores the electric energy first, and controls the switch K to close, and the household refrigerator light user load 5 uses the mains power grid valley. Electric work.

During the peak power consumption, that is, the mains power supply is the peak power, the controller 1 starts the inverter 3 to work, and converts the electric energy stored in the storage battery pack 2 into 220V alternating current, which is used by user loads 5 such as household refrigerators, and the switch K is turned off. On, user load 5 does not use commercial power at this time.

This user energy-saving power consumption system enables 5 user loads to only use off-peak electricity to work, saving electricity costs, and at the same time plays a role in peak regulation for the load of the State Grid, which has great economic benefits and social significance.

Example 2

As shown in Figure 2, on the basis of Embodiment 1, this embodiment also has a solar battery 4, and the solar battery 4 combined with the storage battery pack 2 can meet the user's load 5 when the mains power grid is peak power. electricity demand.

It is also possible to replace the solar cell 4 with a wind power generation system 6 to combine with the storage battery pack 2 to meet the user's power demand of the user's load 5 when the mains power grid is at peak power.

The controller 1 should control the solar battery 4 and the wind power generation system 6 with better economic benefits to give priority to supplying power to the user load 5 .

The small-area power supply system as shown in Figure 3 includes a plurality of regional users, some or all of which have the household energy-saving power consumption system described in claim 1, when the controller 1 detects that the electricity on the mains power grid is valley power When the electric energy is stored in the battery pack 2 in the user's home; when the electricity on the mains grid is peak power, the battery pack 2 in the user's home is converted into alternating current through the inverter 3 and sent to the regional power grid for supply to the regional power grid. User load 5 consumes electricity.

The household energy-saving power consumption system of some users in a small area also includes solar cells 4, and the household energy-saving power consumption system of another part of users in a small area also includes a wind power generation system 6. When the electricity on the network is peak power, it is converted into alternating current by the inverter 3 and then sent to the regional power grid to meet the needs of user loads 5 in the region.

Each user has an electric meter 7 for recording the electric quantity on the grid on the line that transmits electric power to the regional grid. In this way, multiple users in the small area realize power sharing, and only use solar cells 4 with better economic benefits, wind power generation system 6 and valley power of the mains power grid to supply power to the users, which greatly saves the cost of electricity, and the entire small area The power is distributed reasonably. And the on-grid electricity is recorded by the ammeter 7, which is equivalent to selling the excess electricity to other users in the small area after going online.

In addition, the sharing of power consumption in a small area reduces the power consumption pressure of the mains power grid. At the same time, a power grid system is formed in a small area, which greatly reduces the transmission distance compared with the national grid transmission and reduces the cost of building power equipment.

The above-mentioned ideal embodiment according to the utility model is an inspiration, and through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (7)

1. A kind of 1. domestic energy-saving electricity system, it is characterised in that including：Controller (1), batteries (2), inverter (3), institute Controller (1) connection utility grid is stated, batteries (2) are controlled when the electricity that it is detected in utility grid is paddy electricity from civil power Electricity and stored, the batteries (2) connection inverter (3), inverter (3) the connection user load (5) under power network, When the electricity in utility grid is peak electricity, the electric energy of batteries (2) storage translates into user by inverter (3) and born Alternating current needed for carrying (5) meets user power utilization demand.
2. 2. domestic energy-saving electricity system according to claim 1, it is characterised in that when controller (1) detects civil power electricity When online electricity is peak electricity, user's switch electric under utility grid is disconnected, controller (1) control batteries (2) are discharged, and Alternating current needed for user load (5) is changed into by inverter (3)；When controller (1) detects that the electricity in utility grid is During paddy electricity, controller (1) control batteries (2) storing up electricity, the switch that closed user load (5) is connected with utility grid, user (5) are loaded using the electric meet demand in utility grid.
3. 3. domestic energy-saving electricity system according to claim 1, it is characterised in that described also including solar cell (4) Solar cell (4) connection controller (1) and inverter (3), controller (1) control user load (5) preferentially use solar energy The electric energy of battery (4).
4. 4. domestic energy-saving electricity system according to claim 1, it is characterised in that described including wind power generation system (6) Wind power generation system (6) connection controller (1) and inverter (3), controller (1) control user load (5) preferentially use wind energy The electric energy of electricity generation system (6).
5. 5. a kind of zonule electric power system, it is characterised in that including multiple zone users, part or all of user is respectively provided with right It is required that the domestic energy-saving electricity system described in 1, when the electricity that controller (1) is detected in utility grid is paddy electricity, in user family Batteries (2) electrical power storage is got up；When the electricity in utility grid is peak electricity, the batteries (2) in user family are logical Cross inverter (3) and change into alternating current and be transported on regional power grid, for user load (5) electricity consumption on regional power grid.
6. 6. zonule electric power system according to claim 5, it is characterised in that the family expenses section of a part of user in zonule Can electricity system also include solar cell (4), the domestic energy-saving electricity system of another part user also includes wind in zonule Energy electricity generation system (6), the electricity of electric energy on the utility grids caused by solar cell (4) and wind power generation system (6) are peak electricity When alternating current is changed into by inverter (3) after be transported on regional power grid, meet the needs of user load in region (5).
7. 7. the zonule electric power system according to claim 5 or 6, it is characterised in that each user conveys to regional power grid There is the ammeter (7) for recording internet electricity on the circuit of electricity.