Iterative Fault Location Scheme for a Transmission Line Using Synchronized Phasor Measurements
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Sukumar M Brahma
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.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
Articles in the same Issue
- Article
- Decision Tree Based Fault Classification Scheme for Protection of Series Compensated Transmission Lines
- Iterative Fault Location Scheme for a Transmission Line Using Synchronized Phasor Measurements
- Model of Noise Source for HF Interference Calculation in a Converter Station
- Vulnerability Assessment of Power Grid Using Graph Topological Indices
Articles in the same Issue
- Article
- Decision Tree Based Fault Classification Scheme for Protection of Series Compensated Transmission Lines
- Iterative Fault Location Scheme for a Transmission Line Using Synchronized Phasor Measurements
- Model of Noise Source for HF Interference Calculation in a Converter Station
- Vulnerability Assessment of Power Grid Using Graph Topological Indices
