电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
2期
121-126
,共6页
吴庆范%黄金海%张爱玲%周仁伟%刘翼%田培涛
吳慶範%黃金海%張愛玲%週仁偉%劉翼%田培濤
오경범%황금해%장애령%주인위%류익%전배도
三重化%三取二逻辑%冗余%背靠背%直流保护%策略%可靠性
三重化%三取二邏輯%冗餘%揹靠揹%直流保護%策略%可靠性
삼중화%삼취이라집%용여%배고배%직류보호%책략%가고성
triplicate%“selecting 2 from 3”logic%redundant%back-to-back%DC protection%strategy%reliability
基于可靠性和经济性的综合考虑，直流输电工程中的直流保护系统普遍采用三重化配置，输出方式采用三取二逻辑，三取二装置实现三取二逻辑判断并输出动作信号功能，对三取二逻辑装置及配置策略进行分析和研究具有重要意义。对以往工程中的三取二装置及配置策略进行了分析和研究，然后提出了一种新型三取二装置的设计方法，采用控制总线传输及FPGA逻辑处理方法，提高了其可靠性。将三取二逻辑配置在冗余的三取二装置中，同时在冗余的极控系统中进行相同的配置，大大提高了直流保护系统的可靠性和可用性。高岭背靠背扩建工程首次采用此新型三取二逻辑装置及配置策略，直流保护系统在投运后一直安全稳定运行，新型的三取二装置及其配置策略顺利通过了现场复杂环境的考验，验证了其安全性和可靠性，为以后新工程中直流保护系统的相关设计提供了有益的参考。
基于可靠性和經濟性的綜閤攷慮，直流輸電工程中的直流保護繫統普遍採用三重化配置，輸齣方式採用三取二邏輯，三取二裝置實現三取二邏輯判斷併輸齣動作信號功能，對三取二邏輯裝置及配置策略進行分析和研究具有重要意義。對以往工程中的三取二裝置及配置策略進行瞭分析和研究，然後提齣瞭一種新型三取二裝置的設計方法，採用控製總線傳輸及FPGA邏輯處理方法，提高瞭其可靠性。將三取二邏輯配置在冗餘的三取二裝置中，同時在冗餘的極控繫統中進行相同的配置，大大提高瞭直流保護繫統的可靠性和可用性。高嶺揹靠揹擴建工程首次採用此新型三取二邏輯裝置及配置策略，直流保護繫統在投運後一直安全穩定運行，新型的三取二裝置及其配置策略順利通過瞭現場複雜環境的攷驗，驗證瞭其安全性和可靠性，為以後新工程中直流保護繫統的相關設計提供瞭有益的參攷。
기우가고성화경제성적종합고필，직류수전공정중적직류보호계통보편채용삼중화배치，수출방식채용삼취이라집，삼취이장치실현삼취이라집판단병수출동작신호공능，대삼취이라집장치급배치책략진행분석화연구구유중요의의。대이왕공정중적삼취이장치급배치책략진행료분석화연구，연후제출료일충신형삼취이장치적설계방법，채용공제총선전수급FPGA라집처리방법，제고료기가고성。장삼취이라집배치재용여적삼취이장치중，동시재용여적겁공계통중진행상동적배치，대대제고료직류보호계통적가고성화가용성。고령배고배확건공정수차채용차신형삼취이라집장치급배치책략，직류보호계통재투운후일직안전은정운행，신형적삼취이장치급기배치책략순리통과료현장복잡배경적고험，험증료기안전성화가고성，위이후신공정중직류보호계통적상관설계제공료유익적삼고。
Based on comprehensive consideration of the reliability and economy, DC protection system commonly uses triplicate configuration in the HVDC transmission project and the output mode adopts“selecting 2 from 3”logic. The“selecting 2 from 3”devices achieve “selecting 2 from 3”logic judgment and output action signals, which is important to the analysis and research of“selecting 2 from 3” logic device and its configuration strategy. This paper analyzes the “selecting 2 from 3” device and its configuration strategy in previous project, and then proposes a new design of “selecting 2 from 3” device. It adopts control bus transfer and FPGA logic processing methods, which improves the reliability of the devices and configures“selecting 2 from 3”logic in redundant “selecting 2 from 3”devices as well as in redundant pole control systems, which greatly improves the reliability and usability of DC protection system. The new device with“selecting 2 from 3”logic and its configuration strategy is applied in Gaoling back-to-back II project for the first time. DC protection system has been operating safely and stably. The new device of“selecting 2 from 3”logic and its configuration strategy has successfully passed the test of complex environment in the field, which verifies its security and reliability. It provides a useful reference for the relevant design of DC protection system in new project.
