Analyzing the Steady-State Error of Nonunity Feedback Control Systems by the Concept of Type Number

Abstract

In this study, a new analysis method for the steady-state error of nonunity feedback control system was proposed by Kuo and discussed. The steady-state error of unity feedback system is calculated mainly by the system type. However, it is not suitable for nonunity feedback system. A new concept of determining the steady-state error of nonunity feedback control system was introduced by basing on the system type in this paper. Through the method, the step will be unnecessary of transferring nonunity feedback system to unity feedback control system