Wavelet Transform Based Protection of Transmission Lines with Four Quadrant Operation of STATCOM

Rao, Gururaja H V and Prabhu, Nagesh and Mala, R C (2019) Wavelet Transform Based Protection of Transmission Lines with Four Quadrant Operation of STATCOM. International Journal of Recent Technology and Engineering, 8 (2). pp. 4713-4719. ISSN 2277-3878

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Abstract

This paper proposes a new wavelet transform based relay logic for the protection of transmission lines compensated with a static synchronous compensator incorporating energy storage device (STATCOM – ES). STATCOM with energy storage systems can operate in any of the four quadrants in P – Q plane. A conventional distance relay with standard settings may not be reliable to identify and categorize short circuit faults in such systems. A simple, fast acting and reliable wavelet based relay logic is presented to accurately identify and categorize transmission line faults in shunt compensated lines. The developed relay discriminates between internal and external faults accurately. It provides reliable protection for the transmission line considering the entire four quadrant operating range of STATCOM – ES and is immune to the value of fault resistance

Item Type: Article
Uncontrolled Keywords: Fault index, line protection, STATCOM with Energy Storage, Wavelet transform
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Depositing User: MIT Library
Date Deposited: 01 Oct 2019 10:45
Last Modified: 01 Oct 2019 10:45
URI: http://eprints.manipal.edu/id/eprint/154641

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