The Reduction of High Order Linear Dynamic Systems

Abstract

<p> Three existing techniques are selected as the most promising methods of system reduction. These methods are analysed and then applied to a realistic high order system. A second order model of the actual system is derived using each of the reduction techniques. The step response of the actual system and each of the models is obtained for comparison purposes. The reduction methods are compared with a view to application, limitations and accuracy. A new method for system reduction is also proposed which fashions a low order model after the response characteristics of the actual system. </p>