本文關(guān)鍵詞：分級式可控高壓并聯(lián)電抗器控制部分短路判別新原理　出處：《電力系統(tǒng)自動化》2015年04期 　論文類型：期刊論文

  更多相關(guān)文章： 可控高壓并聯(lián)電抗器 控制部分 短路故障 故障位置判別

【摘要】：介紹了分級式可控高壓并聯(lián)電抗器的原理結(jié)構(gòu),分析了控制部分短路故障對各控制支路的電流的影響,得出短路點所在控制支路及下級控制支路電流發(fā)生顯著變化的結(jié)論,并提出如下保護方案:通過實時采集電流計算流過各輔助電抗器的電流值,分析以輔助電抗器的理論電流值作為基礎(chǔ)的故障電流定值制定方案,兩者比較構(gòu)成故障電流判據(jù),實現(xiàn)對故障進行判斷并判別故障位置的作用。RTDS試驗結(jié)果反映了此保護具有以下特點:不僅能對控制部分的短路故障進行快速判斷,而且能對短路故障發(fā)生的位置進行區(qū)分,故障判據(jù)靈敏、短路故障覆蓋范圍廣且定值易整定。
[Abstract]:This paper introduces the principle structure of the stepwise controllable high voltage parallel reactor, and analyzes the influence of the control partial short circuit fault on the current of each control branch. It is concluded that the current of the control branch at the short circuit point and that of the control branch at the lower level change significantly, and the following protection scheme is put forward: the current value of the auxiliary reactor is calculated by the real-time collection of current. The scheme of fault current setting based on the theoretical current value of auxiliary reactor is analyzed, and the fault current criterion is compared with each other. RTDS test results show that this protection has the following characteristics: not only can the control part of the short-circuit fault quickly judge. In addition, it can distinguish the location of short circuit fault, the fault criterion is sensitive, the short circuit fault covers a wide range and the fixed value is easy to be adjusted.
【作者單位】： 南京南瑞繼保電氣有限公司;
【分類號】：TM472
【正文快照】： 0引言可控高壓并聯(lián)電抗器(簡稱可控高抗)作為一項關(guān)鍵的柔性交流輸電應(yīng)用,由于其控制靈活、造價低、可靠性高,不僅能夠協(xié)調(diào)超/特高壓、大容量、遠距離輸電系統(tǒng)中無功補償與過電壓抑制的矛盾,還可抑制工頻過電壓和潛供電流,提高系統(tǒng)穩(wěn)定性,在電網(wǎng)中具有廣泛的應(yīng)用前景[1-5]。目

【共引文獻】

相關(guān)期刊論文 前10條

1 陸建忠;張旭航;張嘉e，

本文編號：1405793