CN222563519U - System for energy storage power station inserts electric wire netting - Google Patents
System for energy storage power station inserts electric wire netting Download PDFInfo
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- CN222563519U CN222563519U CN202420282630.1U CN202420282630U CN222563519U CN 222563519 U CN222563519 U CN 222563519U CN 202420282630 U CN202420282630 U CN 202420282630U CN 222563519 U CN222563519 U CN 222563519U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 66
- 238000007599 discharging Methods 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a system for accessing an energy storage power station to a power grid, which relates to the technical field of power generation and grid connection and comprises a transformer, an energy storage power station and an access system for connecting the energy storage power station with the transformer, wherein the transformer comprises a 1# transformer and a 2# transformer, the access system comprises a grid-connected cabinet QA0, a grid-connected cabinet QA1 and a grid-connected cabinet QA2, the grid-connected cabinet QA1 is connected with a 10.5kV bus of the 1# transformer, the grid-connected cabinet QA2 is connected with a 10.5kV bus of the 2# transformer, the energy storage power station is connected to the power grid in an access mode of two transformers and three grid-connected cabinets, and the residual capacity of the 1# main transformer and the residual capacity of the 2# main transformer are compared, and the low-voltage side of the 1# main transformer and the 2# main transformer can consume the power load of the power station to control the charging path of the 1# transformer and the discharging path of the energy storage power station, and the discharging path of the energy storage power station is maximized, so that the power consumption cost of an enterprise is further reduced.
Description
Technical Field
The utility model relates to the technical field of power generation grid connection, in particular to a system for accessing an energy storage power station to a power grid.
Background
At present, more and more domestic user side energy storage power stations are provided, the adopted business mode is generally 'self-power-consumption' (the energy storage power station is charged when the electricity price is low, the energy storage power station is discharged for enterprise production when the electricity price is high, and the surplus electric quantity is not allowed to be on the net), and the electricity consumption cost of enterprises is reduced by utilizing the peak-valley electricity price difference. The user side energy storage power station is generally connected to the low-voltage side (10.5 kV) of the enterprise main transformer, the capacity depends on the residual capacity of the main transformer and the condition of electricity load (when electricity price is low, the main transformer has enough residual capacity to charge the energy storage power station, when electricity price is high, the electricity load has enough energy consumption to consume the discharge amount of the energy storage power station), however, the larger the capacity of the energy storage power station is, the lower the static investment of unit capacity is, and for enterprises with 2 main transformers or more, the connection mode of the energy storage power station and the charge and discharge control method after connection are reasonably designed, so that the capacity configuration of the energy storage power station is maximized, and the reduction of the electricity cost of the enterprise is facilitated.
Disclosure of utility model
The utility model aims to provide a system for accessing an energy storage power station to a power grid, which is used for solving the problems in the prior art in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The system comprises a transformer, an energy storage power station and an access system for connecting the energy storage power station with the transformer, wherein the transformer comprises a 1# transformer and a 2# transformer, the access system comprises a grid-connected cabinet QA0, a grid-connected cabinet QA1 and a grid-connected cabinet QA2, the grid-connected cabinet QA1 is connected with a 10.5kV bus of the 1# transformer, the grid-connected cabinet QA2 is connected with a 10.5kV bus of the 2# transformer, one end of the grid-connected cabinet QA0 is connected with the grid-connected cabinet QA1 and the grid-connected cabinet QA2, and the other end of the grid-connected cabinet QA0 is connected with the energy storage power station.
Preferably, a 1# incoming line cabinet is connected between the 1# transformer and the grid-connected cabinet QA1, and a 2# incoming line cabinet is connected between the 2# transformer and the grid-connected cabinet QA 2.
Preferably, a 1# outlet cabinet is connected between the 1# inlet cabinet and the grid-connected cabinet QA1, and a 2# outlet cabinet is connected between the 2# inlet cabinet and the grid-connected cabinet QA 2.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, an energy storage power station is connected into a power grid by adopting a connection mode of two transformers and three grid-connected cabinets, and the charge path of the energy storage power station and the discharge path of the energy storage power station are controlled by comparing the residual capacity of the 1# main transformer with the residual capacity of the 2# main transformer and the power load of the energy storage power station which can be consumed by the low-voltage side of the 1# main transformer and the low-voltage side of the 2# main transformer, so that the capacity configuration of the energy storage power station is maximized by utilizing the condition that one transformer is charged and the power load of the low-voltage side of the other transformer consumes the power, and the power cost of enterprises is further reduced.
Drawings
FIG. 1 is a schematic diagram of the connection of an energy storage power station to a power grid according to the present utility model.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1, the present utility model provides the following technical solutions:
The system for accessing the energy storage power station to the power grid comprises a transformer, the energy storage power station and an access system for connecting the energy storage power station with the transformer, wherein the transformer comprises a No. 1 transformer and a No. 2 transformer, the access system comprises a grid-connected cabinet QA0, a grid-connected cabinet QA1 and a grid-connected cabinet QA2, the grid-connected cabinet QA1 is accessed to a No. 1 transformer 10.5kV bus, the grid-connected cabinet QA2 is accessed to a No. 2 transformer 10.5kV bus, one end of the grid-connected cabinet QA0 is accessed to the grid-connected cabinet QA1 and the grid-connected cabinet QA2, the other end of the grid-connected cabinet QA0 is accessed to the energy storage power station, and the two transformers and the three grid-connected cabinets are adopted to access the energy storage power station to the power grid so as to charge and discharge the energy storage power station under different power utilization states, thereby optimizing the capacity configuration of the energy storage power station and playing the role of reducing the power consumption cost of an enterprise.
The system comprises a grid-connected cabinet QA1, a 1# transformer, a 2# incoming cabinet, a 1# outgoing cabinet, a 2# incoming cabinet, a 2# outgoing cabinet and an outgoing cabinet, wherein the 1# incoming cabinet is connected between the 1# transformer and the grid-connected cabinet QA1, the 2# incoming cabinet is connected between the 2# transformer and the grid-connected cabinet QA2, the arrangement of the incoming cabinet is convenient for the transfer of a transformer bus, the 1# outgoing cabinet is connected between the 1# incoming cabinet and the grid-connected cabinet QA1, the 2# outgoing cabinet is connected between the 2# incoming cabinet and the grid-connected cabinet QA2, and the arrangement of the outgoing cabinet is convenient for connecting electric equipment.
The specific working process of the system for accessing the energy storage power station into the power grid is as follows:
When the residual capacity of the No. 1 transformer is larger than that of the No. 2 transformer, and the electricity load of the discharged capacity of the energy storage power station can be consumed by the low-voltage side of the No. 1 transformer is larger than that of the discharged capacity of the energy storage power station can be consumed by the low-voltage side of the No. 2 transformer, the capacity of the energy storage power station is determined according to the residual capacity of the No. 1 transformer and the electricity load, at the moment, the energy storage power station is charged through the grid-connected cabinet QA1 and the grid-connected cabinet QA0 and is discharged through the grid-connected cabinet QA0 and the grid-connected cabinet QA1, and the low-voltage side of the transformer is 10.5kV side.
When the residual capacity of the No. 2 transformer is larger than that of the No. 1 transformer, and the electricity load of the low-voltage side energy-absorbing energy storage power station in the discharge capacity of the No. 2 transformer is larger than that of the No. 1 transformer in the discharge capacity of the energy storage power station in the low-voltage side energy-absorbing energy storage power station, the capacity of the energy storage power station is determined according to the residual capacity of the No. 2 transformer and the electricity load, and at the moment, the energy storage power station is charged through the grid-connected cabinet QA2 and the grid-connected cabinet QA0 and is discharged through the grid-connected cabinet QA0 and the grid-connected cabinet QA 2.
When the residual capacity of the No. 1 transformer is larger than the residual capacity of the No. 2 transformer, but the power load of the low-voltage side energy-saving energy storage power station for discharging is smaller than the power load of the low-voltage side energy-saving energy storage power station for discharging, the capacity of the energy storage power station is determined according to the residual capacity of the No. 1 transformer and the power load of the low-voltage side energy-saving energy storage power station for discharging, and at the moment, the energy storage power station is charged through the grid-connected cabinet QA1 and the grid-connected cabinet QA0 and is discharged through the grid-connected cabinet QA0 and the grid-connected cabinet QA 2.
When the residual capacity of the No. 2 transformer is larger than that of the No. 1 transformer, but the electricity load of the discharged capacity of the energy storage power station can be consumed by the low-voltage side of the No. 2 transformer is smaller than that of the discharged capacity of the energy storage power station can be consumed by the low-voltage side of the No. 1 transformer, the capacity of the energy storage power station is determined according to the residual capacity of the No. 2 transformer and the electricity load of the low-voltage side of the No. 1 transformer, at the moment, the energy storage power station is charged through a grid-connected cabinet QA2 and a grid-connected cabinet QA0 and is discharged through the grid-connected cabinet QA0 and the grid-connected cabinet QA1, and in general, the grid-connected cabinet QA1 and the grid-connected cabinet QA2 are not allowed to be simultaneously switched on, and linkage is arranged between the two.
The charge path of the energy storage power station and the discharge path of the energy storage power station are controlled by comparing the residual capacity of the 1# main transformer with the residual capacity of the 2# main transformer and the power load of the energy storage power station, which can be consumed by the low-voltage side of the 1# main transformer and the low-voltage side of the 2# main transformer, and the charge path of the energy storage power station and the discharge path of the energy storage power station are controlled by the 1# transformer and the 2# transformer, one transformer is used for charging, and the power consumption of the power load of the low-voltage side (10.5 kV) of the other transformer is consumed, so that the capacity configuration of the energy storage power station is maximized, and the power consumption cost of enterprises is further reduced.
Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420282630.1U CN222563519U (en) | 2024-02-06 | 2024-02-06 | System for energy storage power station inserts electric wire netting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420282630.1U CN222563519U (en) | 2024-02-06 | 2024-02-06 | System for energy storage power station inserts electric wire netting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222563519U true CN222563519U (en) | 2025-03-04 |
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ID=94762765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420282630.1U Active CN222563519U (en) | 2024-02-06 | 2024-02-06 | System for energy storage power station inserts electric wire netting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222563519U (en) |
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2024
- 2024-02-06 CN CN202420282630.1U patent/CN222563519U/en active Active
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