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Published Article / RZ I07/2003/I-068 ENY-ARTICLE-2009-250

Advanced spectral analysis of out-of-step operation of synchronous machines

Leonowicz, Z (Wroclaw University of Technology, Poland) ; Lobos, T (Wroclaw University of Technology, Poland)


Abstract: The out-of-step operation conditions of a synchronous machine may occur as a result of a power system three-phase fault. The mostly used methods of identification of loss of synchronism are not secure enough. In the paper a new method using high-resolution spectrum estimation method is presented. In the case of asynchronous operation of a synchronous machine the current waveform in the stator winding can be resolved into three components, which frequencies differ insignificantly. High-resolution subspace methods enable to estimate the frequencies and on this way to identify the asynchronous operation. Copyright © 2003 IFAC

Keyword(s): Power System Control ; Synchronous Machines ; Spectrum Estimation ; Subspace Methods ; Fault Detection
Note: IFAC Symposium on Power Plants and Power System Control 2003, 15-19 Sep 2003, Seoul, Korea.

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Cited by: try citation search for ENY-ARTICLE-2009-250; RZ I07/2003/I-068

Record created 2009-02-01, last modified 2009-02-01

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