Electronic Resource
Berkeley, Calif.
:
Berkeley Electronic Press (now: De Gruyter)
International journal of emerging electric power systems
8.2007, 6, art2
ISSN:
1553-779X
Source:
Berkeley Electronic Press Academic Journals
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
This paper describes a new iterative method to locate fault on a single transmission line. The method uses synchronized voltage and current measurements from both line terminals. Using the positive sequence components of the pre-fault and the post-fault phasors, positive sequence source impedances at both terminals are first estimated. Using these source impedances and the line data, the positive sequence bus impedance matrix (Zbus) is formed. Using the properties of Zbus, an iterative algorithm is proposed to locate the fault. This algorithm is tested extensively with data obtained from the EMTP simulation of a long transmission line simulated with distributed parameters in the presence of fault resistance and CT saturation. The simulation results show that the method is very accurate and robust.
Type of Medium:
Electronic Resource
URL:
http://www.bepress.com/ijeeps/vol8/iss6/art2
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