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Analysis on a Saturating System with an Intelligent Limiter

All mechanical systems have saturation nonlinearity in actuators or in final control elements. When controllers have an integral action, reset windup can cause instability as well as make the system performance unsatisfacdtory. This paper presents an analysis of the stability of the control system with antireset-windup limiter, called intelligent limiter, using the describing function method. The responses of the system with this limiter are illustrated by computer simulation.