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000000193 037__ $$aENY-ARTICLE-2008-151
000000193 041__ $$aeng
000000193 088__ $$aI08/2003/I-067
000000193 100__ $$aRebizant, W$$uWroclaw University of Technology, Poland
000000193 245__ $$aReal-time Implementation of Adaptive Amplitude Estimators for Protection and Control Purposes.
000000193 260__ $$c2003-01-24
000000193 300__ $$a8p
000000193 500__ $$aAktualne problemy w elektroenergetyce. APE '03. XI Międzynarodowa konferencja naukowa, Jurata, 11-13 czerwca 2003. T. 2. , pp. 255-262.
000000193 520__ $$aIn the paper a new fast and adaptive scheme for measurement of signal amplitude for protection and control purposes is presented. The algorithm developed is intended for amplitude tracking of the distorted sinusoidal signals with varying frequency. Wide frequency band features of the estimator 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 described in the paper. The real-time tests have shown that the time required for execution of all equations of the adaptive estimator within one time-step was equal to 0.14ms, which allows working with the sampling frequency set to 7kHz. That means that real-time application of the adaptive algorithm for estimation of amplitude of both currents and voltages is utterly attainable.
000000193 6531_ $$asignal amplitude
000000193 6531_ $$areal-time algorithm
000000193 6531_ $$aFFT
000000193 6531_ $$awindow function
000000193 6531_ $$asignal processor
000000193 700__ $$aStaszewski, J$$uWroclaw University of Technology, Poland
000000193 700__ $$aLee, S J$$uNext-Generation Power Technology Center, Myongji University, Yongin, Korea
000000193 700__ $$aKang, S H$$uNext-Generation Power Technology Center, Myongji University, Yongin, Korea
000000193 8560_ $$
000000193 8564_ $$u$$zAccess to Fulltext
000000193 909CO $$$$pglobal
000000193 980__ $$aARTICLE