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Reactive voltage emergency coordination control system

A technology for coordinating the control system and voltage, applied in the direction of AC network voltage adjustment, reactive power compensation, information technology support system, etc., can solve problems such as low voltage, continuous commutation failure, etc., to solve voltage problems and realize reactive power dynamic compensation Effect

Pending Publication Date: 2021-06-25
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an emergency coordinated control system for reactive power and voltage, which can solve the problem of continuous commutation failure or local low voltage caused by AC and DC chain reactions

Method used

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  • Reactive voltage emergency coordination control system
  • Reactive voltage emergency coordination control system
  • Reactive voltage emergency coordination control system

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Embodiment Construction

[0023] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] The present invention provides an emergency coordinated control system for reactive power and voltage, the structure of which is as follows figure 1 As shown, it includes reactive power and voltage coordination management master station, regional control master station and control execution station, wherein the coordination management master station is connected to at least two regional control master stations through Ethernet, and each regional control master station is Connect at least two control executive stations with channels.

[0025] The coordination and management master station is responsible for system monitoring and management, and provides information such as short-circuit capacity for the system; the regional control master station is set in the converter station, collects relevant information such as direct current, and executes eme...

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Abstract

The invention discloses a reactive voltage emergency coordination control system, which comprises a reactive voltage coordination management master station, regional control master stations and control execution stations, and is characterized in that the coordination management master station is connected with at least two regional control master stations, each regional control master station is connected with at least two control execution stations, the coordination management master station acquires short-circuit capacity information of related stations from an AVC master station and issues the short-circuit capacity information of each station to each regional control master station in real time, the regional control master station is arranged in a converter station, collects an analog quantity signal and a position input signal of reactive compensation equipment, and issues a switching command to the control execution station, and the control execution station is arranged in a transformer substation and is used for acquiring capacitor reactor information and executing the switching command of the regional control master station. The system can solve the problem of continuous commutation failure or local low voltage caused by an AC-DC chain reaction.

Description

technical field [0001] The invention belongs to the field of power system automation, in particular to a reactive voltage emergency coordination control system. Background technique [0002] Due to the increase in the proportion of new energy output, a large number of conventional units have been replaced, the power grid is insufficient to start up, and there is a lack of dynamic reactive power support. [0003] For areas with multiple DC feed-in, when the AC high-voltage line fails, the reactive power consumption of the inverter will increase due to the failure of DC commutation. Due to the lack of dynamic reactive power support in the power grid, it will be difficult to restore the voltage, and the chain reaction of AC and DC will eventually lead to continuous commutation. failure or localized low voltage. Contents of the invention [0004] The purpose of the present invention is to provide an emergency coordinated control system for reactive power and voltage, which ca...

Claims

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Application Information

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IPC IPC(8): H02J3/16H02J13/00
CPCH02J3/16Y02E40/30Y02E60/00Y04S10/16
Inventor 戴汝虎刘刚王凯顾健雨郑诗威曾凯栾霄雷张添阳孙得贤
Owner NR ELECTRIC CO LTD
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