Field oriented control of an induction motor fed by a VSI is achieved by means of a state feedback static controller designed according the H_infinity control theory. Designing procedure is described in the paper. The performances of the control system are numerically analyzed and experimentally verified, also in order to prove the validity of the design procedure. The results confirm that good dynamic performances and high robustness to variations of sysyem's parameter can be achieved by means of the proposed controller.
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