PC-based protective relaying algorithms for generator using digital filters
Protective relaying algorithms are developed for extracting 50 Hz component of generator stator signals and 100 Hz component of rotor current signals. These frequency components are used for detecting the internal short-circuit and rotor overheating condition of generators. The proposed algorithms were satisfactorily tested for various simulated conditions of the system.
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References
1.
RusselMason. C., The Art and Science of Protective Relaying, Wiley Eastern Ltd. (1977)
2.
HopeG. S., DashP. K., and MalikO. P., ‘Digital differential protection of a generating unit scheme and real time results’, IEEE Trans. PAS-96, no. 2, pp. 502–509(1971)
3.
VermaH. K., and SoundararajanK., ‘Digital differential relaying for generator protection’, Journal of the Institution of Engineers (India), Electrical division, pp. 97–103 (June 1990)
4.
Madhava RaoT. S., Power System Protection — Static Relays, Tata McGraw Hill (1979)
5.
AntoniouA, Digital filters: Analysis and Design, Tata McGraw Hill, New York (1979)
6.
SedraAdel S., and BrackettPeter O., Filter Theory and Design: Active and Passive, Matrix Publishers, Inc. (1978)
7.
OppenheimAlan V., and SchaferRonald. W., Digital Signal Processing, Prentice Hall of India Pvt. Ltd., New Delhi (1988)
8.
BarkleJ. E., and GlassburnW. E., ‘Protection of generators against unbalanced currents’, AIEE Trans. Part 3, Power Apparatus and Systems, pp. 282–285(1953)
