Identifying an error source in the differential equation approach for the transmission line fault location algorithm

被引：2
|
作者：
Lian, B [1 ]
Salama, MMA [1 ]
Hanson, J [1 ]
机构：
[1] UNIV WATERLOO,DEPT ELECT & COMP ENGN,WATERLOO,ON N2L 3G1,CANADA
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 1997年 / 42卷 / 02期
关键词：
fault location algorithm; transmission line; calculation error;
D O I：
10.1016/S0378-7796(96)01187-X
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An overlooked error source in the differential equation approach for locating a fault on a transmission line is investigated. Due to the use of difference equations in the expansion of the differential equation, a mismatch results between the different transfer functions in the frequency domain that are applied to different terms in the same equation, causing an error in the final fault location estimate. This error source is identified and its effect on the fault location estimate is shown through numerical simulation. A criterion is proposed for improving the difference approximation. (C) 1997 Elsevier Science S.A.
引用
收藏
页码：115 / 119
页数：5
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