title: Bandwidth vs. gains design of H/sub infinity / tracking controllers for current-fed induction motors
abstract: Describes a systematic procedure for designing speed and rotor flux norm tracking H/sub infinity /. controllers with unknown load torque disturbances for current-fed induction motors. A new effective design tool is developed to allow selection of the control gains so as to adjust the disturbances' rejection capability of the controllers in the face of the bandwidth requirements of the closed-loop system. Application of the proposed design procedure is demonstrated in a case study, and the results of numerical simulations illustrate the satisfactory performance achievable even in presence of rotor resistance uncertainty
keyphrases: H/sub infinity / tracking controllers current-fed induction motors unknown load torque disturbances design tool bandwidth requirements closed-loop system speed controllers rotor flux norm controllers disturbances rejection capability feedback linearization observers