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Verification of enhanced dynamic torque per ampere capability in saturated induction machines

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4 Author(s)
Wallace, I.T. ; Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA ; Novotny, D.W. ; Lorenz, R.D. ; Divan, D.M.

An easily implemented technique for dynamic torque per ampere enhancement under high levels of motor saturation is described and validated via substantial experimental results presented in this paper. A saturation model assuming only d-axis saturation is utilized in field oriented control of the experimental system and the results are compared to theoretical predictions based on the same saturation model. In order to help users optimize this technique, the paper discusses motor selection issues for the production of this dynamic torque enhancement. An experimental illustration of the use of the torque enhancement principle to break away a load with high static friction is presented to demonstrate the practical application of the concept. Measurement methods used to evaluate the dynamic properties of the electromagnetic torque are presented in sufficient detail that users have appropriate tools for performing such work

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Industry Applications, IEEE Transactions on  (Volume:30 ,  Issue: 5 )