Developing dead-beat control in a valve electric drive

Abstract

Problems of constructing high-speed control systems of electric drives with switch-mode power converters are discussed in the present paper. Historical aspects of the development of these theoretical issues at the Department of Automated Electric Drives of the Moscow Power Engineering Institute and their importance are discussed. The described converters are control objects of a discrete type that should be considered in the creation of control systems. It is shown that dead-beat control in such systems in the unconstrained case makes a finite number of discreteness intervals equal to the system order. Two currently important principles in construction of a dead-beat control system—namely, ones using predictive models in a real and accelerated time scale—are considered. Since the operation quality of such systems is determined by the adequacy of the predictive model of the control object, the approaches to creating the self-adjustment algorithms allowing one to correct the model in operation are considered.