电力建设
電力建設
전력건설
ELECTRIC POWER CONSTRUCTION
2014年
8期
38-42
,共5页
刘耀%谢晨曦%李新年%王晶芳%王华伟
劉耀%謝晨晞%李新年%王晶芳%王華偉
류요%사신희%리신년%왕정방%왕화위
电容换相换流器(CCC)%电网换相换流器(LCC)%高压直流输电%换相失败%故障恢复策略
電容換相換流器(CCC)%電網換相換流器(LCC)%高壓直流輸電%換相失敗%故障恢複策略
전용환상환류기(CCC)%전망환상환류기(LCC)%고압직류수전%환상실패%고장회복책략
capacitor commutated converter%line commutated converter%HVDC transmission%commutation failure%fault recovery strategy
研究了电容换相换流器（capacitor commutation converter，CCC）逆变侧的故障特性，以及避免逆变侧单相短路故障后发生后续持续故障的对策、原理及操作时序。借鉴交流系统高压线路串联补偿补技术原理，首次运用“可控旁通开关”思想，成功解决了CCC直流输电系统逆变侧发生故障后不易恢复的缺陷，并通过仿真验证了策略的可行性。研究结果对于进一步提高CCC直流输电系统的动态特性及CCC直流输电技术的进一步推广具有重要意义。
研究瞭電容換相換流器（capacitor commutation converter，CCC）逆變側的故障特性，以及避免逆變側單相短路故障後髮生後續持續故障的對策、原理及操作時序。藉鑒交流繫統高壓線路串聯補償補技術原理，首次運用“可控徬通開關”思想，成功解決瞭CCC直流輸電繫統逆變側髮生故障後不易恢複的缺陷，併通過倣真驗證瞭策略的可行性。研究結果對于進一步提高CCC直流輸電繫統的動態特性及CCC直流輸電技術的進一步推廣具有重要意義。
연구료전용환상환류기（capacitor commutation converter，CCC）역변측적고장특성，이급피면역변측단상단로고장후발생후속지속고장적대책、원리급조작시서。차감교류계통고압선로천련보상보기술원리，수차운용“가공방통개관”사상，성공해결료CCC직류수전계통역변측발생고장후불역회복적결함，병통과방진험증료책략적가행성。연구결과대우진일보제고CCC직류수전계통적동태특성급CCC직류수전기술적진일보추엄구유중요의의。
This paper studied the fault characteristics of the inverter side of capacitor commutated converter (CCC)and the strategy,principle and operation time of the follow-up fault after avoiding a short single-phase fault.Based on the series compensation technology of HV lines in AC system,the defect that it was difficult to be resolved after the inverter side fault of CCC in DC transmission system was resolved successfully,by using the strategy of‘bypass breakers’for the first time. The feasibility of the strategy was verified through the simulation.The research results have great significance for the improvement of the dynamic characteristics of CCC HVDC transmission system and its further development.
