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| Quadrilateral Impedance Eigenvalue Analysis and Application |
| You Tianzhu |
| Jilin Electric Power Co., Liaoyuan Supply Company, Liaoyuan, Jilin 136200 |
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Abstract In order to make the relay setting calculation precision, avoid “setting calculation error”, the author using two-dimensional coordinates of the quadrilateral vector elements characteristic impedance characteristic value are analyzed. Through the analysis of " relevance vector impedance " and quadrilateral characteristic diagram of relations, reveals the “modular” algorithm to get the results, cover the quadrilateral characteristic impedance protection secret mechanism for measuring distortion of the actual grid impedance. This mechanism will cause the original resistance component reliability coefficient variation, impedance sensitivity calibration value false results.Through mathematical analysis and logical judgement, is derived for quadrilateral impedance value for a calculated item setting calculation and verification, to reflect the reliability coefficient variation and sensitivity results from decomposition of screen out false sensitivity.
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Received: 26 June 2014
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[1] 崔价佩, 孟庆炎, 陈永芳, 等.电力系统继电保护与安全自动装置整定计算[M].北京:中国电力出版社, 1993.
[2] 赵志宏, 魏会利, 田蘅, 等. CSL-160C系列数字式线路保护装置说明书[Z]. 四方继保自动化有限公司, 2003.11.
[3] 穆大庆.继电保护原理与整定计算.电力系统继电保护与整定计算培训班培训教材[Z]. 北京国网动经技术培训中心. |
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2013, Vol. 14 
