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000000206 037__ $$aENY-ARTICLE-2008-159
000000206 041__ $$aeng
000000206 088__ $$aI08/2003/I-091
000000206 100__ $$aRebizant, W$$uInstitute of Electrical Power Engineering, Wroclaw University of Technology, Poland
000000206 245__ $$aEfficient Frequency-Adaptive Amplitude Tracking Algorithms for Protection Purposes
000000206 260__ $$c2003-03-05
000000206 300__ $$a6p
000000206 500__ $$a2003 IEEE Bologna PowerTech Proceedings , Bologna, Italy, June 23-26, 2003, ref. BTPO3-12
000000206 520__ $$aThe new, fast and adaptive algorithms for measurement of signal amplitude for protection and control purposes are presented. The algorithms are intended for amplitude tracking of the distorted sinusoidal signals with varying frequency. Contradictory requirements of selective measurement of the fundamental frequency component parameters and algorithm application in off-nominal frequency conditions become reconciled due to introduction of the adaptivity idea. Wide frequency band features of the estimators are obtained by adaptive on-line changes of the orthogonal filter parameters (data window length) and coefficients in the measurement equations according to the observed actual frequency being tracked with special but simple digital procedure. The developed algorithms have been tested with MATLAB and EMTP-ATP generated signals. Practical implementation of the adaptive scheme on the TMS signal processor is also described.
000000206 6531_ $$aamplitude estimation
000000206 6531_ $$aprotective relaying
000000206 6531_ $$aadaptive signal processing
000000206 6531_ $$afrequency independent algorithms
000000206 700__ $$aRusek, B$$uInstitute of Electrical Power Systems, Darmstadt University of Technology, Germany
000000206 8560_ $$
000000206 8564_ $$u$$zAccess to Fulltext
000000206 909CO $$$$pglobal
000000206 980__ $$aARTICLE