作者:
DA Tziouvaras，JB Roberts，G Benmouyal
关键词:
fault location ； power system relaying ； power transmission faults ； power transmission lines ； power transmission protection ； relay protection ； transmission line theory ； algorithm ； digital protection channel ； fault location accuracy
摘要:
This paper presents a new fault location system for multiterminal power transmission lines. The algorithm used by this system is suitable for inclusion in a numerical protection relay, which communicates with remote relay(s) over a protective relaying channel. The data volume communicated between relays is sufficiently small to be easily transmitted using a digital protection channel. The new algorithm does not require data alignment, pre-fault load flow information, phase selection information, and does not perform iterations to calculate the distance to the fault. Pre-fault load flow, zero-sequence mutual coupling, fault resistance, power system nonhomogeneity, and current infeeds from other line terminals or tapped loads do not affect the fault location accuracy.
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