CN215733511U - Electric wiring structure of wind-solar same-field power station - Google Patents
Electric wiring structure of wind-solar same-field power station Download PDFInfo
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- CN215733511U CN215733511U CN202122176574.2U CN202122176574U CN215733511U CN 215733511 U CN215733511 U CN 215733511U CN 202122176574 U CN202122176574 U CN 202122176574U CN 215733511 U CN215733511 U CN 215733511U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model provides an electrical wiring structure of a wind-solar same-field power station, which comprises a photovoltaic power generation unit, a wind power generation unit, a box-type transformer, a 35kV power distribution device and a booster station, wherein the photovoltaic power generation unit is connected with the wind power generation unit; the photovoltaic power generation unit is connected with a wire inlet end of a low-voltage circuit breaker QF1 in the box type transformer, and a wire outlet end of a low-voltage circuit breaker QF1 is connected with an alternating current bus I; the wind power generation unit is connected with a low-voltage breaker QF2 wire inlet end in the box type transformer, and a low-voltage breaker QF2 wire outlet end is connected with an alternating current bus I; the alternating current bus I collects electric energy and then connects the electric energy to the low-voltage side of a transformer body in the box type transformer; the high-voltage side of the transformer body is connected with an incoming line breaker QF3 incoming line end in a 35kV power distribution device, and an incoming line breaker QF3 is connected with an alternating current bus II; the alternating current bus II collects electric energy and then is connected with the low-voltage side of a main transformer in the booster station through an outlet circuit breaker QF 4; the high-voltage side of the main transformer delivers power to the grid through an outlet breaker QF 5.
Description
Technical Field
The utility model relates to the technical field of wind power and photovoltaic power generation, in particular to an electrical wiring structure of a wind-solar same-field power station.
Background
On the project of utilizing wind energy and solar energy to generate electricity, the mode of adopting scene with the power station can more effectively utilize the land, simultaneously, wind power generation and photovoltaic power generation possess certain complementary characteristic, can combine two kinds of power generation forms to provide more stable output for the power station, improve booster station equipment utilization ratio, improve the stability and the reliability of system.
At present, when electrical connection of wind and light power stations is considered, the wind power station and the photovoltaic power station are independently treated, two types of electric energy are collected by a 35kV power distribution device of a booster station, and the characteristics of equipment below 35kV are not fully considered.
Therefore, how to connect the wind power generation system and the photovoltaic power generation system below 35kV to save the equipment investment of the 35kV voltage class of the power station is a problem to be considered at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electrical wiring structure of a wind-solar same-field power station, aiming at the defects in the prior art.
In order to achieve the purpose, the utility model provides an electrical wiring structure of a wind-solar same-field power station, which comprises a photovoltaic power generation unit, a wind power generation unit, a box-type transformer, a 35kV power distribution device and a booster station;
the box-type transformer comprises a low-voltage circuit breaker QF1, a low-voltage circuit breaker QF2, an alternating current bus I and a transformer body, the 35kV power distribution device comprises an incoming line circuit breaker QF3, an alternating current bus II and an outgoing line circuit breaker QF4, and the booster station comprises a main transformer and an outgoing line circuit breaker QF 5;
the photovoltaic power generation unit is connected with the wire inlet end of the low-voltage circuit breaker QF1, and the wire outlet end of the low-voltage circuit breaker QF1 is connected with the alternating current bus I;
the wind power generation unit is connected with the wire inlet end of the low-voltage circuit breaker QF2, and the wire outlet end of the low-voltage circuit breaker QF2 is connected with the alternating current bus I;
the alternating current bus I collects electric energy and then is connected to the low-voltage side of the transformer body through a copper bar;
the high-voltage side of the transformer body is connected with a wire inlet end of a wire inlet breaker QF3, and the wire inlet breaker QF3 is connected with an alternating current bus II;
the alternating current bus II collects electric energy and then is connected with the low-voltage side of the main transformer through an outgoing line breaker QF 4;
the high-voltage side of the main transformer sends electric energy to a power grid through an outlet circuit breaker QF 5.
Preferably, the photovoltaic power generation unit comprises a photovoltaic array and a photovoltaic power conversion device, and the photovoltaic power conversion device is used for converting direct current generated by the photovoltaic array into alternating current with the same frequency as the power grid.
Preferably, the wind power generation unit comprises a fan and a wind power and electric energy conversion device, and the wind power and electric energy conversion device is used for converting direct current generated by the fan into alternating current with the same frequency as a power grid.
Preferably, the transformer body is provided with a double winding structure.
Preferably, the transformer body is arranged in an oil-immersed structure or a dry structure.
Compared with the prior art, the utility model has the following beneficial effects:
the electrical wiring structure of the wind-solar power station takes the characteristics of wind power generation and photovoltaic power generation into full consideration, reasonably utilizes each device in the system from the system structure of the wind-solar power station, protects the wind-solar power station by arranging the circuit breaker and collects and transmits the electric energy by arranging the alternating current bus, so that the two power generation modes of the wind-solar power station are connected in the system below 35kV and can be effectively protected.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic diagram of an electrical wiring structure of a wind-solar co-field power station in an embodiment of the utility model.
Detailed Description
In order to make the aforementioned objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the present invention are simplified and are not to precise scale, and are provided for convenience and clarity in assisting the description of the embodiments of the present invention; the several references in this disclosure are not limited to the particular numbers in the examples of the figures; the directions or positional relationships indicated by ' front ' middle, ' rear ' left ', right ', upper ', lower ', top ', bottom ', middle ', etc. in the present invention are based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or imply that the devices or components referred to must have a specific direction, nor should be construed as limiting the present invention.
In this embodiment:
referring to fig. 1, an electrical wiring structure of a wind-solar co-field power station comprises a photovoltaic power generation unit, a wind power generation unit, a box-type transformer, a 35kV power distribution device and a booster station;
the box-type transformer comprises a low-voltage circuit breaker QF1, a low-voltage circuit breaker QF2, an alternating current bus I and a transformer body, the 35kV power distribution device comprises an incoming line circuit breaker QF3, an alternating current bus II and an outgoing line circuit breaker QF4, and the booster station comprises a main transformer and an outgoing line circuit breaker QF 5;
the photovoltaic power generation unit comprises a photovoltaic array and photovoltaic power conversion equipment, the photovoltaic power conversion equipment converts direct current generated by the photovoltaic array into alternating current with the same frequency as a power grid, and the alternating current is connected with a wire inlet end of a low-voltage circuit breaker QF1 through an alternating current cable, a wire outlet end of the low-voltage circuit breaker QF1 is connected with an alternating current bus I, and the alternating current bus I collects electric energy and then is connected to a first winding on the low-voltage side of the transformer body through a copper bar;
the wind power generation unit comprises a fan and wind power and electric energy conversion equipment, the wind power and electric energy conversion equipment converts direct current generated by the fan into alternating current with the same frequency as a power grid, and is connected with the incoming line end of a low-voltage circuit breaker QF2 through an alternating current cable, the outgoing line end of a low-voltage circuit breaker QF2 is connected with an alternating current bus I, and the alternating current bus I collects electric energy and then is connected to a second winding on the low-voltage side of the transformer body through a copper bar;
the high-voltage side of the transformer body is connected with the wire inlet end of a wire inlet breaker QF3 of a 35kV power distribution device through a high-voltage cable, and a plurality of wire inlet breakers QF3 are connected through an alternating current bus II and transmit electric energy collected by the alternating current bus II to the low-voltage side of the main transformer through a wire outlet breaker QF 4;
the high-voltage side of the main transformer delivers power to the grid through an outlet breaker QF 5.
Preferably, the transformer body preferably adopts a transformer with a double-winding structure, and the transformer with the double-winding structure is preferably set to be of an oil-immersed structure or a dry structure.
Preferably, the voltage of the output end of the photovoltaic electric energy conversion device is the same as that of the output end of the wind power electric energy conversion device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a scene is with electric wiring structure of field power station which characterized in that: the photovoltaic power generation system comprises a photovoltaic power generation unit, a wind power generation unit, a box-type transformer, a 35kV power distribution device and a booster station;
the box-type transformer comprises a low-voltage circuit breaker QF1, a low-voltage circuit breaker QF2, an alternating current bus I and a transformer body, the 35kV power distribution device comprises an incoming line circuit breaker QF3, an alternating current bus II and an outgoing line circuit breaker QF4, and the booster station comprises a main transformer and an outgoing line circuit breaker QF 5;
the photovoltaic power generation unit is connected with the wire inlet end of the low-voltage circuit breaker QF1, and the wire outlet end of the low-voltage circuit breaker QF1 is connected with the alternating current bus I;
the wind power generation unit is connected with the wire inlet end of the low-voltage circuit breaker QF2, and the wire outlet end of the low-voltage circuit breaker QF2 is connected with the alternating current bus I;
the alternating current bus I collects electric energy and then is connected to the low-voltage side of the transformer body through a copper bar;
the high-voltage side of the transformer body is connected with a wire inlet end of a wire inlet breaker QF3, and the wire inlet breaker QF3 is connected with an alternating current bus II;
the alternating current bus II collects electric energy and then is connected with the low-voltage side of the main transformer through an outgoing line breaker QF 4;
the high-voltage side of the main transformer sends electric energy to a power grid through an outlet circuit breaker QF 5.
2. The wind-solar co-farm power plant electrical wiring structure of claim 1, characterized in that: the photovoltaic power generation unit comprises a photovoltaic array and photovoltaic electric energy conversion equipment, and the photovoltaic electric energy conversion equipment is used for converting direct current generated by the photovoltaic array into alternating current with the same frequency as a power grid.
3. The wind-solar co-farm power plant electrical wiring structure of claim 1, characterized in that: the wind power generation unit comprises a fan and wind power and electric energy conversion equipment, and the wind power and electric energy conversion equipment is used for converting direct current generated by the fan into alternating current with the same frequency as a power grid.
4. The wind-solar co-farm power plant electrical wiring structure of claim 1, characterized in that: the transformer body is of a double-winding structure.
5. The wind-solar co-farm power plant electrical wiring structure of claim 4, wherein: the transformer body is of an oil-immersed structure or a dry structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176574.2U CN215733511U (en) | 2021-09-09 | 2021-09-09 | Electric wiring structure of wind-solar same-field power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122176574.2U CN215733511U (en) | 2021-09-09 | 2021-09-09 | Electric wiring structure of wind-solar same-field power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215733511U true CN215733511U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122176574.2U Active CN215733511U (en) | 2021-09-09 | 2021-09-09 | Electric wiring structure of wind-solar same-field power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215733511U (en) |
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2021
- 2021-09-09 CN CN202122176574.2U patent/CN215733511U/en active Active
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