PIR CONTROLLER DESIGN BASED ON THE TIME-SCALE SEPARATION METHOD AND INTERNAL MODEL PRINCIPLE FOR HARMONIC DISTURBANCE SUPPRESSION
V. D. Yurkevich
Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: control, proportional-integral resonant (PIR) controller, time-scale separation method, internal model principle
Abstract
A modified structure of a proportional-integral resonant (PIR) controller and a method of adjusting its parameters are considered. It is shown that application of the time-scale separation method allows selection of the proportional-integral component of the controller independently from selection of the parameters of the resonant components of the controller. The proposed approach to calculation of the controller parameters allows providing robust perfect tracking and disturbance rejection in the presence of plant model uncertainties and harmonic disturbances. The results of numerical modeling are also reported.
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