CN203086030U - Full intelligent distributed 35kV opening/closing station - Google Patents

Abstract

The utility model discloses a fully intelligent decentralized 35kV switching station, which includes a switch room and a control room located on the right side of the switch room. The switch room is sequentially provided with an SVG outgoing line cabinet, a PT cabinet, an incoming line cabinet, and an outgoing line cabinet from left to right. Cabinets and substation cabinets, the front part of the control room is equipped with fault recording screen, telecontrol screen, bus protection screen and dispatching screen from left to right, and the rear part of the control room is equipped with power supply screen, battery screen, DC screen, communication DC screen, inverter screen, integrated measurement and control screen, integrated wiring screen and PCM optical transceiver. The opening and closing station has the characteristics of reasonable and compact structure, low production cost, safe and reliable performance, beautiful appearance, convenient installation and all-round protection.

Description

Fully intelligent decentralized 35kV switching station

technical field

The utility model relates to an opening and closing station used in a decentralized wind farm.

Background technique

At present, the construction mode of domestic wind farms is mainly the centralized construction mode. Generally, the power generated by wind turbines is boosted by the booster station and then incorporated into the 110kV or 220kV power grid. This mode of wind power generation is currently restricted by the acceptance capacity of the power grid, and there are restrictions on power generation in most areas of the country. question. In order to solve the current problem of limited wind power generation, decentralized wind power generation can be integrated into the nearby power grid by virtue of its electric energy, and the characteristics of local digestion have ushered in an opportunity for development. The switching station used to connect wind power collection lines and 35kV power grid has become a decentralized necessary equipment for wind farms. Existing switching station products are generally used in power distribution systems to distribute electric energy. There are only primary switchgear, power supply and automatic protection equipment, and they do not have the performance of remote communication and multi-site monitoring, nor do they have low temperature and high pollution environments. performance under conditions.

Contents of the invention

In order to solve the above-mentioned problems existing in the existing switching station, the utility model provides a fully intelligent decentralized 35kV switching station, and the technical solution adopted is:

Including the switch room and the control room on the right side of the switch room, the switch room is equipped with SVG outgoing line cabinet, PT cabinet, incoming line cabinet, outgoing line cabinet and transformer cabinet from left to right, and the front part of the control room is sequentially arranged from left to right There are fault recording screens, telecontrol screens, busbar protection screens and dispatching screens, and the rear part of the control room is equipped with power supply screens, battery screens, DC screens, communication DC screens, inverter screens, and comprehensive measurement and control screens from left to right. , Integrated wiring screen and PCM optical transceiver.

The primary electrical system of the utility model is configured with one incoming line interval for connecting to the local 35kV power grid; one or more outgoing line intervals are configured for connecting to the wind field collector lines, and one line corresponds to one outgoing line interval; one set of PT The interval is used for measurement and metering in the station; a variable interval is configured to provide low-voltage AC power in the station; and the interval for reactive power compensation outlets can be configured as required as a protection device for reactive power compensation circuits. The utility model station has the characteristics of reasonable and compact structure, low production cost, safe and reliable performance, beautiful appearance, convenient installation and all-round protection.

Description of drawings

Fig. 1 is a block diagram of the internal structure of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, it includes a switch room 1 and a control room 2 located on the right side of the switch room 1. In the switch room 1, there are SVG outlet cabinets 22, PT cabinets 21, inlet cabinets 20, and outlet cabinets 19 in sequence from left to right. With the substation cabinet 17, the front part in the control room 2 is provided with a fault recording screen 7, a telecontrol screen 6, a bus protection screen 5 and a dispatching screen 4 in turn from left to right, and the rear part in the control room 2 is arranged from left to right The right side is provided with a power panel 16, a battery panel 15, a DC panel 14, a communication DC panel 13, an inverter panel 12, an integrated measurement and control panel 11, an integrated wiring panel 10 and a PCM optical transceiver 9.

The switching station adopts a movable container structure, and the 35kV medium-voltage switchgear complete set of equipment installed in the switching station adopts a gas-insulated switchgear, and is equipped with one incoming line cabinet 20 for connecting to the local 35kV power grid; one or more outgoing lines are configured The cabinet 19 is used to connect the collector lines of the wind farm, and one line corresponds to one outlet cabinet; one PT cabinet 21 is configured for measurement and metering in the station; one substation cabinet 17 is configured for providing low-voltage AC power in the station; The SVG outlet cabinet 22 needs to be configured to be used as a protection device for the reactive power compensation circuit. The control room is equipped with an integrated power panel, including a 400V power panel 16, a battery panel 15, a DC panel 14, a communication DC panel 13 and an inverter panel 12, which are used to provide AC and DC power for the switching station; it is equipped with an integrated measurement and control panel 11, Bus protection screen 5, fault recording screen 7, and remote control screen 6 realize automatic protection of opening and closing stations, fault recording, protection information, and remote transmission of control information; configuration dispatching screen 4 realizes provincial dispatching, ground dispatching, and centralized control of wind farms The center monitors the switching stations in an all-round way; configures the power quality online detection device to realize remote monitoring of power information; configures PCM optical transceiver 9 and integrated wiring panel 10 to realize the optical fiber communication function of various information of the switching station. In order to ensure the low temperature resistance and pollution resistance of the switching station equipment, an air conditioner 8 is installed in the switch room 1 of the switching station.

Claims (1)

1. A fully intelligent decentralized 35kV switching station, including a switch room (1) and a control room (2) located on the right side of the switch room (1), characterized in that: the switch room (1) is sequentially arranged from left to right There are SVG outlet cabinets (22), PT cabinets (21), inlet cabinets (20), outlet cabinets (19) and transformer cabinets (17), and the front part of the control room (2) is arranged sequentially from left to right There are fault recording screens (7), telecontrol screens (6), busbar protection screens (5) and dispatching screens (4), and the rear part of the control room (2) is provided with power supply screens (16) from left to right , battery panel (15), DC panel (14), communication DC panel (13), inverter panel (12), integrated measurement and control panel (11), integrated wiring panel (10) and PCM optical transceiver (9).

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