Method for detecting line-to-line fault location in power...

Details Method for detecting line-to-line fault location in power... Method for detecting line-to-line fault location in power...

2006-01-17

2006-01-17

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C324S509000

Reexamination Certificate

active

06988042

ABSTRACT:
The present invention relates to a method for detecting a line-to-line fault location in power network, and more particularly, detecting the line-to-line fault location by direct 3-phase circuit analysis without using a symmetrical component transformation, so even in an unbalanced 3-phase circuit, the line-to-line fault location can be accurately detected. In the method using direct 3-phase circuit analysis of this invention, inverse lemma is used to simplify matrix inversion calculations, thus the line-to-line fault location can be easily and accurately determined even in the case of an unbalanced network without symmetrical component transformation.

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Chen et al., A Fault Location Algorithm for Transmission Line Based on Distributed Parameter, IEEE 2001, Develop. in Power System Protection, Conf. Pub. No. 479, pp. 411-413.
Stamp et al., Fault Location Technique for Six Phase Transmission Lines With Unsynchronised Phasors, IEEE 1999, pp. 663-667.

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