Fractional Order Adaptive Compensation for Cogging Effect in PMSM Position Servo Systems ?
نویسندگان
چکیده
Fractional calculus is a generalization of the integration and differentiation to the fractional (non-integer) order. In this paper, for the first time, we devised a fractionalorder adaptive compensation (FO-AC) method for cogging effect minimization for permanent magnetic synchronous motors (PMSM) position and velocity servo system. Cogging effect is a major disadvantage of PMSM. In our FO-AC scheme, a new fractional order adaptive compensator for cogging effect is designed to guarantee the boundedness of all signals. Stability properties have been proven for the systems with the traditional integer order adaptive compensation method and the proposed fractional order adaptive compensation method, respectively. Simulation results are presented to illustrate the advantage of the proposed FO-AC method for cogging effect compensation over the conventional integer order scheme.
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