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Petal type power distribution network protection control system

A technology for protection control and distribution network, applied in information technology support systems, electrical components, circuit devices, etc., to solve problems such as affecting the reliability of power supply, short-circuit faults at feeder terminals not being handled in time, and heavy burdens on substations

Active Publication Date: 2014-06-25
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sub-station collects the information sent by the terminal and then comprehensively analyzes and processes the protection and control work. The sub-station has a heavy burden, and once the sub-station fails or is not processed in time, the short-circuit fault at the feeder terminal will not be processed in time, seriously affecting power supply reliability

Method used

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  • Petal type power distribution network protection control system
  • Petal type power distribution network protection control system
  • Petal type power distribution network protection control system

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0016] In the petal-shaped distribution network protection and control system of this embodiment, the structure of the petal-shaped distribution network is: an outgoing line drawn from a section of busbar in a substation is connected to multiple power distribution rooms, and then connected back to the The same section of the bus bar of the above-mentioned substation constitutes a petal; one of the power distribution rooms in the petal is connected to one of the power distribution rooms in the other petal through a tie line;

[0017] The petal-shaped distribution network protection and control system includes a master station layer, an area layer, and an interval layer;

[0018] The master station layer includes an automation master station, which is installed in the dispatch...

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Abstract

The invention provides a petal type power distribution network protection control system which comprises a master station layer, an area layer and a spacing layer. The master station layer comprises an automatic master station. The area layer comprises an area control master station and a centralized protection terminal. The area control master station is arranged in a transformer substation. The centralized protection terminal is arranged in a power distribution room. The spacing layer comprises a centralized protection terminal and a pilot protection device, the centralized protection terminal is used for protecting gaps in the power distribution room except inlet and outlet wires, and the pilot protection device is used for protecting the inlet and outlet wires and call wires of the power distribution room. The area control master station is connected with the centralized protection terminal and the pilot protection device. The area control master station is used for receiving real-time information and carrying out load lightening according to the preset strategy when detecting overload after a petal type power distribution network breaks down and power supply is restored. The protection control system can fast locate and isolate faults for the petal type power distribution network and restore power supply fast.

Description

technical field [0001] The invention relates to the technical field of distribution network control, in particular to a petal-shaped distribution network protection and control system. Background technique [0002] The existing distribution network control system architecture is mainly a centralized control system. The feeder terminal is only responsible for collecting the information of each node and sending the information to the control substation, and the terminal itself does not have the function of protection and control. These messages include local protection measurement information, telemetry information and switching value information. The sub-station collects the information sent by the terminal and then comprehensively analyzes and processes the protection and control work. The sub-station has a heavy burden, and once the sub-station fails or is not processed in time, the short-circuit fault at the feeder terminal will not be processed in time, seriously affecti...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02J3/00
CPCY02E60/00Y04S10/16
Inventor 鲁德锋华煌圣顾衍璋黄祖成朱中华李园园徐光福
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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