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Measurement of synchronous machine rotor angle from analysis of zero sequence harmonic components of machine terminal voltage

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1 Author(s)
de Mello, F.P. ; Consulting Engineer, Schenectady, NY, USA

Generator rotor angle measurement is useful in identification of electric machine parameters in the d and q axes and as an indicator of stability of the operating condition. Rotor angle measurements with the appropriate bandwidth are also very useful in observation of rotor torsional oscillations both for monitoring and protection against undamped torsional modes, and for use in control schemes designed to damp torsional oscillations. A method of measurement of synchronous machine rotor angle from an analysis of the phase angle of zero sequence harmonic components of terminal voltage is presented

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Power Delivery, IEEE Transactions on  (Volume:9 ,  Issue: 4 )