CN216648904U - 50MW 35kV new forms of energy switch station system - Google Patents
50MW 35kV new forms of energy switch station system Download PDFInfo
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- CN216648904U CN216648904U CN202122895583.7U CN202122895583U CN216648904U CN 216648904 U CN216648904 U CN 216648904U CN 202122895583 U CN202122895583 U CN 202122895583U CN 216648904 U CN216648904 U CN 216648904U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
本实用新型公开了一种50MW 35kV新能源开关站系统，包括SVG降压变以及预制舱；所述预制舱包括SVG舱、接地变舱、站用变及400V舱、35kV舱及二次设备舱；35kV舱内设置有35kV配电装置；站用变及400V舱内设置有400V配电装置及站用变；接地变舱内设置有接地变及电阻成套装置，SVG舱内设置有SVG功率和控制设备，二次设备舱内设置有直流及UPS设备、系统保护设备、系统通信设备、系统调度自动化设备、综合自动化系统及元件保护设备；35kV配电装置与SVG降压变、接地变及电阻成套装置和站用变连接，该系统有效提高50MW 35kV新能源开关站的建站效率。
The utility model discloses a 50MW 35kV new energy switching station system, which includes an SVG step-down transformer and a prefabricated cabin; the prefabricated cabin includes an SVG cabin, a grounding transformer cabin, a station transformer, a 400V cabin, a 35kV cabin and a secondary equipment cabin 35kV power distribution device is installed in 35kV cabin; 400V power distribution device and station transformer are installed in station transformer and 400V cabin; grounding transformer and resistance complete set are installed in grounding transformer cabin, SVG power and resistance are installed in SVG cabin Control equipment, DC and UPS equipment, system protection equipment, system communication equipment, system dispatch automation equipment, integrated automation system and component protection equipment are installed in the secondary equipment compartment; 35kV power distribution device and SVG step-down transformer, grounding transformer and resistance The complete set of equipment is connected to the station transformer, and the system effectively improves the station construction efficiency of the 50MW 35kV new energy switching station.
Description
Technical Field
The utility model belongs to the field of new energy wind power and photovoltaic power generation, and relates to a 50MW 35kV new energy switching station system.
Background
A new energy power generation project such as wind power, photovoltaic and the like generally comprises a wind power/photovoltaic field area and a transformer substation/booster station area. Electric energy generated by a new energy power generation device (a wind turbine generator or a photovoltaic module and inverter combination) in the field area is boosted through a box transformer, and then is connected to a matched transformer substation/booster station through a multi-loop 35kV current collection circuit to be collected/boosted and then is uniformly sent out to a transformer substation of a nearby power grid company, so that the grid connection of the new energy electric energy is realized.
A50 MW 35kV new energy switch station is a common configuration of a booster station of new energy power generation projects such as wind power and photovoltaic. Each design unit causes the concrete form diverse of present 50MW 35kV new forms of energy switch station at the main equipment lectotype and the difference of arranging the design, can not realize standardized design, and occupation space is great, and this is unfavorable for the improvement of owner unit earlier stage building station efficiency, also brings inconvenience for the unified intensive fortune dimension management in later stage simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a 50MW 35kV new energy switch station system which effectively improves the station building efficiency of a 50MW 35kV new energy switch station.
In order to achieve the purpose, the 50MW 35kV new energy switching station system comprises an SVG step-down transformer and a prefabricated cabin; the prefabricated cabin comprises an SVG cabin, a grounding transformer cabin, a station transformer and 400V cabin, a 35kV cabin and a secondary equipment cabin;
a 35kV power distribution device is arranged in the 35kV cabin; a 400V power distribution device and a station transformer are arranged in the 400V cabin; a grounding transformer and resistor complete device is arranged in the grounding transformer cabin, SVG power and control equipment is arranged in the SVG cabin, and direct current and UPS equipment, system protection equipment, system communication equipment, system dispatching automation equipment, a comprehensive automation system and element protection equipment are arranged in the secondary equipment cabin;
And the 35kV power distribution device is connected with the SVG step-down transformer, the grounding transformer, the resistor complete device and the station transformer.
And the 35kV power distribution device is connected with the SVG step-down transformer, the grounding transformer, the resistor complete equipment and the station transformer by cables.
The 35kV power distribution device adopts an indoor armored metal movable air insulation switch cabinet;
1 set of +/-7.5 MVar water-cooling step-down SVG is adopted for the SVG power and control equipment;
the grounding transformer adopts 1 37kV 630kVA three-phase dry DKSC type;
the station transformer was of the type 1 37. + -. 2X 2.5%/0.4 kV 200kVA three-phase dry SCB 11.
The transformer 400V cabin for the station adopts a 4-surface MNS type switch cabinet.
The system protection equipment comprises a 1-surface line protection cabinet, a 1-surface fault recording cabinet, a 1-surface protection and fault information management substation cabinet and a 1-surface power grid safety automatic device cabinet.
The system dispatching automation equipment comprises a 1-plane electric energy metering cabinet, a 1-plane electric energy quality online monitoring cabinet, a 1-plane synchronous phasor measuring cabinet, a 2-plane dispatching data network access equipment cabinet, a 1-plane management information network cabinet, a 1-plane wind/light power prediction system cabinet, a 1-plane secondary security equipment cabinet, a 1-plane AGC/AVC control cabinet and a 1-plane primary frequency modulation cabinet.
The system communication equipment comprises a 1-plane optical transmission system cabinet, a 1-plane PCM/dispatching exchange cabinet and a 1-plane comprehensive distribution frame cabinet.
The integrated automation system and element protection equipment comprises 2 sets of host machines and operator stations/engineer stations, 1 set of microcomputer five-prevention system, 1 surface telecontrol workstation cabinet, 1 surface network communication cabinet, 1 surface time synchronization cabinet, 1 surface public measuring and controlling cabinet, 3 collecting line protection and controlling devices, 2 sets of station transformer/grounding transformer protection and controlling devices, 1 SVG outgoing line protection and controlling device, 1 set of 35kV bus measuring and controlling device, 6 sets of sound alarm devices, 2 printers, 1 surface 35kV bus protecting cabinet and 1 surface relay protection test power supply screen;
the direct current and UPS equipment comprises a direct current system and a UPS, wherein the direct current system is configured according to 2 charging and 2 storing, and the UPS is configured according to double-machine redundancy.
The utility model has the following beneficial effects:
when the 50MW 35kV new energy switch station system is operated specifically, a standard design is realized in a prefabricated cabin mode, wherein the standard design comprises an SVG step-down transformer and a prefabricated cabin; prefabricated cabin includes SVG cabin, ground connection becomes cabin, station and becomes and 400V cabin, 35kV cabin and secondary equipment cabin to improve space utilization, show the efficiency of building the station that improves 50MW 35kV new forms of energy switch station (single main transformer) simultaneously, make things convenient for owner's unit to develop the intensification operation and maintenance management to all the same type power stations in the group.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Wherein, 1 is the SVG cabin, 2 is SVG step-down transformer, 3 is the ground transformer cabin, 4 is station and reaches 400V cabin, 5 is the 35kV cabin, 6 is the secondary equipment cabin.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the utility model. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the 50MW 35kV new energy switching station system of the present invention includes an SVG step-down transformer 2 and a prefabricated cabin; the prefabricated cabin comprises an SVG cabin 1, a grounding transformer cabin 3, a transformer 400V cabin 4, a 35kV cabin 5 and a secondary equipment cabin 6.
A 35kV power distribution device is arranged in the 35kV cabin 5; a 400V power distribution device and a station transformer are arranged in the 400V cabin 4; a grounding transformer and resistor complete device is arranged in the grounding transformer cabin 3, SVG power and control equipment is arranged in the SVG cabin 1, and direct current and UPS equipment, system protection equipment, system communication equipment, system scheduling automation equipment, a comprehensive automation system and element protection equipment are arranged in the secondary equipment cabin 6.
The second-layer cabin comprises a 35kV cabin 5, a station transformer 400V cabin 4 and a secondary equipment cabin 6.
And the 35kV power distribution device is connected with the SVG step-down transformer, the grounding transformer and the station transformer by cables.
The 35kV power distribution device adopts an indoor armored metal movable air insulation switch cabinet, the rated voltage of the 35kV power distribution device is 40.5kV, the rated current is 1250A, the thermal stability current is 31.5kA (4s), and the dynamic stability current is 80 kA.
The SVG power and control equipment adopts 1 set of +/-7.5 MVar water-cooling step-down SVG.
The grounding transformer adopts 1 37kV 630kVA three-phase dry DKSC type, and the resistance value of a matched grounding resistor is 71.2 ohms.
The station transformer is 1 37 +/-2X 2.5%/0.4 kV 200kVA three-phase dry SCB11 type.
The construction and standby application is changed into 1 10 +/-2 multiplied by 2.5%/0.4 kV 200kVA three-phase oil-immersed S11 type.
The transformer 400V cabin 4 for the station adopts a 4-surface MNS type switch cabinet.
The system protection equipment comprises a 1-surface line protection cabinet, a 1-surface fault recording cabinet, a 1-surface protection and fault information management substation cabinet and a 1-surface power grid safety automatic device cabinet.
The system dispatching automation equipment comprises a 1-plane electric energy metering cabinet, a 1-plane electric energy quality online monitoring cabinet, a 1-plane synchronous phasor measuring cabinet, a 2-plane dispatching data network access equipment cabinet, a 1-plane management information network cabinet, a 1-plane wind/light power prediction system cabinet, a 1-plane secondary security equipment cabinet, a 1-plane AGC/AVC control cabinet and a 1-plane primary frequency modulation cabinet.
The system communication equipment comprises a 1-plane optical transmission system cabinet, a 1-plane PCM/dispatching exchange cabinet and a 1-plane comprehensive distribution frame cabinet.
The integrated automation system and element protection equipment comprises 2 sets of host and operator stations/engineer stations, 1 set of microcomputer five-prevention system, 1 surface telecontrol workstation cabinet, 1 surface network communication cabinet, 1 surface time synchronization cabinet, 1 surface public measurement and control cabinet, 1 surface PT transfer cabinet, 3 collecting line protection and control devices, 2 sets of station transformer/grounding transformer protection and control devices, 1 SVG outlet wire protection and control device, 1 set of 35kV bus measurement and control device, 6 sets of 35kV electric energy meters, 1 set of sound alarm device, 2 printers, 1 surface 35kV bus protection cabinet and 1 surface relay protection test power supply screen.
The direct current system in the direct current and UPS equipment is configured according to 2 charging and 2 storage, single bus segmented wiring is adopted, the capacity of each group of storage batteries is 250Ah, a communication power supply is taken from the direct current system for the station, and the UPS in the direct current and UPS equipment is configured according to double-machine redundancy and has the capacity of 2 multiplied by 10 kVA.
The electrical main wiring design and equipment option design scheme of the booster station are shown in table 1.
TABLE 1
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895583.7U CN216648904U (en) | 2021-11-23 | 2021-11-23 | 50MW 35kV new forms of energy switch station system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895583.7U CN216648904U (en) | 2021-11-23 | 2021-11-23 | 50MW 35kV new forms of energy switch station system |
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| Publication Number | Publication Date |
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| CN216648904U true CN216648904U (en) | 2022-05-31 |
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| CN202122895583.7U Active CN216648904U (en) | 2021-11-23 | 2021-11-23 | 50MW 35kV new forms of energy switch station system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188836A (en) * | 2021-11-23 | 2022-03-15 | 中国华能集团清洁能源技术研究院有限公司 | 50MW35kV new forms of energy switch station system |
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2021
- 2021-11-23 CN CN202122895583.7U patent/CN216648904U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114188836A (en) * | 2021-11-23 | 2022-03-15 | 中国华能集团清洁能源技术研究院有限公司 | 50MW35kV new forms of energy switch station system |
| CN114188836B (en) * | 2021-11-23 | 2025-06-03 | 中国华能集团清洁能源技术研究院有限公司 | A 50MW 35kV new energy switch station system |
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