【摘要】：在目前工程中現(xiàn)有的接地極線不平衡保護和接地極線差動保護原理基礎(chǔ)上分析并提出接地極引線雙端不平衡保護。所提的雙端不平衡保護原理,具有保護線路全長,識別引線斷線和金屬接地故障并能夠計算出故障位置,不受過渡電阻的影響,以及定值整定簡單等優(yōu)點。采用EMTDC/PSCAD仿真驗證了理論分析的正確性,最后采用實時數(shù)字仿真器(RTDS)仿真驗證了所提保護動作策略的可行性。
[Abstract]:On the basis of the existing earth pole line unbalanced protection and ground pole line differential protection principle in current engineering, the double end unbalanced protection of the ground pole lead wire is analyzed and put forward. The proposed two-terminal unbalanced protection principle has the advantages of full length of protection line, identification of lead break and metal ground fault, calculation of fault location, no influence of transition resistance, and simple setting of value. The correctness of the theoretical analysis is verified by EMTDC/PSCAD simulation. Finally, the feasibility of the proposed protection action strategy is verified by the real-time digital simulator (RTDS) simulation.
【作者單位】： 南京南瑞繼保電氣有限公司;南瑞集團公司(國網(wǎng)電力科學(xué)研究院);
【分類號】：TM721.1;TM862

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 姚其新;黎恒p，

本文編號：2239708