• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2015, Vol. 36 ›› Issue (2): 104-109.doi: 10.3969/j.issn.1000-7229.2015.02.017

• 输配电技术 • 上一篇    下一篇

特高压中州换流站保护三取二逻辑优化分析

王森,周晓宇,吴宁,廖卉莲   

  1. 国家电网公司运行分公司郑州管理处,郑州市 451452
  • 出版日期:2015-02-01
  • 作者简介:王森(1984),男,硕士,工程师,主要从事特高压换流站控制保护系统检修工作; 周晓宇(1991),女,学士,助理工程师,主要从事特高压换流站运行维护工作; 吴宁(1979),男,学士,工程师,主要从事特高压换流站检修管理工作; 廖卉莲(1982),女,学士,高级工程师,主要从事特高压换流站运维管理工作。

Optimization Analysis for Two-out-of-Three Logic of DC Protection in UHV Zhongzhou Converter Station

WANG Sen, ZHOU Xiaoyu, WU Ning, LIAO Huilian   

  1. hengzhou Management Office of State Grid Operation Company, Zhengzhou 451452, China
  • Online:2015-02-01

摘要:

保护三取二逻辑具有较低的误动率和拒动率,在换流站的保护系统中广泛应用。由于所保护的设备不同,三取二逻辑的实现方法也有所区别,以中州换流站内的直流系统保护、换流变非电量保护为研究对象,从三取二逻辑的模拟量采集回路、开关量采集回路以及出口回路入手,同时结合以往工程中保护三取二逻辑的实现方式,对中州换流站保护的三取二逻辑进行了全面的分析,找出了其中存在的问题,并提出相关改进意见,为后续工程的设计提供一些依据。

关键词: 三取二逻辑, 换流站, 直流系统保护, 换流变非电量保护

Abstract:

Two-out-of-three 2 of 3 logic is widely used in DC protection system of converter stations, because of its lower malfunction and rejection rate. There are different methods to implement two-out-of-three logic, according to different devices. Taking the DC system protection of Zhongzhou converter station and the non-electrical protection of converter transformer as research objects, this paper comprehensively analyzed the two-out-of-three logic of DC protection in Zhongzhou converter station, including analog value acquisition circuit, digital value acquisition circuit and trip circuit, combined with the realization way of two-out-of-three logic of DC protection in previous projects. Finally, the problems were found, and some improvement suggestions were proposed, which could provide some basis for the design of follow-up projects.

Key words: two-out-of-three logic, converter station, DC system protection, non-electrical protection of converter transformer