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Published Article / RK I07/2002/I-046 ENY-ARTICLE-2009-252

Identification of Out-of-Step Operation of Synchronous Machines Using High Resolution Spectrum Estimation Methods

Koglin, H J (Saarland University, Germany) ; 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.

Keyword(s): Power System Control ; Synchronous Machines ; Out-Of-Step Operation ; Spectrum Estimation ; Subspace Methods
Note: International Symposium Modern Electric Power Systems, MEPS 2002, 11-13 Sep 2002, pp. 378-383

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Cited by: try citation search for ENY-ARTICLE-2009-252; RK I07/2002/I-046

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

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