https://scholars.lib.ntu.edu.tw/handle/123456789/438579
標題: | A composite index to adaptively perform fault detection, classification, and direction discrimination for transmission lines | 作者: | JOE-AIR JIANG Chen, Ching-Shan Fan, Ping-Lin CHIH-WEN LIU Chang, Rong-Seng |
關鍵字: | Computer relaying; Fault classification; Fault detection; Fault direction discrimination; Global positioning system (GPS); Phasor measurement unit (PMU) | 公開日期: | 2002 | 卷: | 2 | 起(迄)頁: | 912 - 917 | 來源出版物: | Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference | 摘要: | This paper presents an adaptive protection scheme for transmission lines based on synchronized phasor measurements. The work includes: fault detection, fault classification, and fault direction discrimination. Using two-terminal synchronized measurements incorporated with distributed line model and Clarke transformation theory, fault detection index is derived. We can classify the faults by the proposed modal fault detection index and the circuit breaker can achieve single-pole tripping. The fault detection index is composed of two complex phasors. The fault events can be found according to the angle difference between these two phasors as in internal and external fault situation. The proposed method also combines an-line parameter estimation to assure protection scheme performance and to achieve adaptive protection. After a lot of EMTP simulations and verifications show that the method provides a fast and accurate protection scheme for transmission lines. The tripping decision time of protective relay is within 1/2 cycle. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036089664&doi=10.1109%2fPESW.2002.985138&partnerID=40&md5=0a99571d57ed30e55a1d9166316192de https://www2.scopus.com/inward/record.uri?eid=2-s2.0-0036089664&doi=10.1109%2fPESW.2002.985138&partnerID=40&md5=0a99571d57ed30e55a1d9166316192de |
ISSN: | 21608555 | DOI: | 10.1109/PESW.2002.985138 | SDG/關鍵字: | Computer simulation; Electric circuit breakers; Electric fault location; Global positioning system; Mathematical models; Parameter estimation; Phasor measurement unit (PMU); Electric lines |
顯示於: | 生物機電工程學系 |
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