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Abstract
Series compensation poses serious challenges to the protection schemes of transmission lines (TLs). Moreover, with the penetration of distributed generation (DG), the conventional protection schemes fail to detect the fault and identify the faulty phase as the backfeed currents from the DG units mask the faulty phase. This work presents an algorithm for the protection of series-compensated TLs (SCTL) integrated with wind farms. The algorithm uses the phase difference between the positive sequence currents at the two ends of the TL to discriminate internal and external faults. The faulty phase for internal fault is identified from the difference in complex power at the two ends of the TL. Extensive simulations with several fault and system parameters assess the reliability and applicability of this technique.
DISCLOSURE STATEMENT
No potential conflict of interest was reported by the author(s).
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Notes on contributors
Monideepa Paul
Monideepa Paul received her MTech degree in industrial electrical systems from the National Institute of Technology, Durgapur, India. She is currently pursuing her PhD at the Department of Electrical Engineering, Jadavpur University, Kolkata, India. Her areas of interest are fault identification and classification in distribution and transmission systems.
Sudipta Nath
Sudipta Nath received her BE, MTech and PhD degrees from NIT Durgapur, Calcutta University, and IIEST Shibpur. She is currently working as a professor in the Electrical Engineering Department of Jadavpur University in Kolkata, India. Her research interests include fault detection and power quality improvement in distribution systems. Email: [email protected]