Optimal frequency value to detect low current faults superposing voltage tones

被引：11

作者：

Zamora, J. J. ^{[1
,2
]}

Zamora, I. ^{[1
,2
]}

Mazon, A. J. ^{[1
,2
]}

Sagastabeitia, K. J. ^{[1
,2
]}

机构：

[1] Univ Basque Country, Dept Elect & Telecommun Engn, Bilbao 48013, Spain

[2] Univ Basque Country, Dept Elect Engn, Bilbao 48013, Spain

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2008年 / 23卷 / 04期

关键词：

distribution systems; fault diagnosis; low current fault (LCF); random drift values; signal superposition; synchronous coupling; tones generation;

D O I：

10.1109/TPWRD.2008.919256

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：

Single phase to ground low current faults (LCF) are difficult to be detected with common fault detection techniques. Therefore, several specific methodologies have been developed to identify LCF in an easier way. Among these methodologies, a method based on superposing voltage tones has been proposed. This method requires defining the frequency of the tones that have to be superimposed. This paper presents a practical analysis developed to determine the optimal range of frequency values that characterize the voltage tones used in this methodology. The results obtained by means of simulation tests with several frequencies have been compared with those measured in laboratory tests, using an emulated network on which the voltage tones generated with these frequencies have been applied.

引用

页码：1773 / 1779

页数：7

共 13 条

[1] Pjase-domain multiphase transmission line models [J].