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An Adaptive Scheme for Frequency Measurement in Power System  

Park, Cheol-Won (원주대 전기과)
Nam, Si-Bok (용인송담대 전기과)
Sin, Myeong-Cheol (성균관대 전기전자 컴퓨터공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.51, no.3, 2002 , pp. 143-152 More about this Journal
Abstract
Frequency is regarded as one of most important indices for the operating power systems. Several digital techniques for measuring frequency have been presented in the last decades. This paper proposes a design and implementation an adaptive scheme using phase angle difference calculation fort frequency measuring in power system. The advantages of the proposed technique are demonstrated by fault signals from EMTP simulation and user defined arbitrary signals by Excel program. The proposed technique is compared with the conventional methods. Performance teat results indicate that the proposed technique provides accurate measures in pretence of noise and harmonics and in case faults and is suitable for measurement near-nominal, nominal. and off-nominal frequencies. We can see that It will be useful in microprocessor based relays and digital metiers that need to measure power system frequency.
Keywords
Adaptive scheme; Phasor angle difference; Power system frequency; Faults; Harmonics; Relay; EMTP;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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