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Phase voltage estimation of a PWM VSI and its application to vector-controlled induction machine parameter estimation

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3 Author(s)
Xing Yu ; Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK ; Dunnigan, M.W. ; Williams, B.W.

For high-performance vector control of an induction machine, rotor resistance estimation is required. The commonly used state-space class of estimators requires voltage transducers as instantaneous phase voltages are used in the estimation algorithm. A phase voltage estimator is developed for a pulsewidth modulation voltage-source inverter. The voltage estimates are used in a rotor resistance estimator and practical results show that the usual phase-voltage transducers are unnecessary

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Industrial Electronics, IEEE Transactions on  (Volume:47 ,  Issue: 5 )