Marine Power Distribution System Fault Location Using a Portable Injection Unit

被引：24

作者：

Jia, Ke ^{[1
]}

Bi, Tianshu ^{[2
]}

Liu, Bohan ^{[3
]}

Christopher, Edward ^{[4
]}

Thomas, David W. P. ^{[4
]}

Sumner, Mark ^{[4
]}

机构：

[1] North China Elect Power Univ, Elect & Elect Engn Dept, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China

[2] North China Elect Power Univ, Sch Elect & Elect Engn, Beijing 102206, Peoples R China

[3] HVAC, Natl State Grid, Beijing 100082, Peoples R China

[4] Univ Nottingham, Dept Elect & Elect Engn, Nottingham NG7 2RD, England

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2015年 / 30卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Active impedance estimation; fault location; injections; marine distribution system; IMPEDANCE MEASUREMENT; QUALITY;

D O I：

10.1109/TPWRD.2014.2364259

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：

A portable injection unit for active impedance estimation (AIE) is built and tested in a dc zonal marine power distribution system to provide useful information for system protection and restoration. The portable unit generates current "spikes" and injects them into the system once short-circuit faults are detected (by measuring the system voltage drop). The faulted system impedance can be estimated by AIE and comparing the estimated impedance with the precalibrated value, the fault location can be determined. The proposed method does not rely on system fault transient information or communication from the remote-end measurement and offers fast and accurate fault location in dc marine distribution systems. The proposed method has been tested and validated on a 750-V, 2-MW twin bus dc commercial test facility with the system de-energized and energized.

引用

页码：818 / 826

页数：9

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