Synchrophasor based fault location algorithm for three terminal homogeneous transmission lines

Chegireddy, Purushotham Reddy and Bhimasingu, Ravikumar (2021) Synchrophasor based fault location algorithm for three terminal homogeneous transmission lines. Electric Power Systems Research, 191. p. 106889. ISSN 03787796

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This paper presents a new fault location algorithm for three-terminal transmission lines, with the help of synchrophasor data. The algorithm utilizes the information of voltages and currents which are available from all the three ends. The proposed algorithm utilizes positive and negative sequence data for locating asymmetrical faults and only positive sequence data for locating symmetrical faults. The accuracy of the algorithm has been evaluated for various factors, such as fault inception angles, fault resistance, fault location, synchronization errors, measurement errors. The simulation of faults on the system have been carried out using PSCAD® and the algorithm is implemented in MATLAB software. Based on the simulation results it has been observed that the % error is less than 1.5% for 178 test cases out of 180, which shows 98.8% accuracy.

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IITH Creators:
IITH CreatorsORCiD
Chegireddy, Purushotham ReddyUNSPECIFIED
Bhimasingu, RavikumarUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Fault inception angles; Fault location algorithms; Fault resistances; Negative sequence; Symmetrical fault; Synchronization error; Synchrophasor datum; Three-terminal transmission lines
Subjects: Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 31 Jul 2021 09:24
Last Modified: 31 Jul 2021 09:24
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