Robust pole assignment of proportional integral control system

  • Kim, Hwan-Seong (Department of Electrical Engineering and Computer Science, Faculty of Engineering, Kumamoto University, 2-39-1 kurokami, Kumamoto 860, JAPAN) ;
  • Ogasawara, Kenichi (Department of Electrical Engineering and Computer Science, Faculty of Engineering, Kumamoto University, 2-39-1 kurokami, Kumamoto 860, JAPAN) ;
  • Kawaji, Shigeyasu (Department of Electrical Engineering and Computer Science, Faculty of Engineering, Kumamoto University, 2-39-1 kurokami, Kumamoto 860, JAPAN)
  • Published : 1994.10.01

Abstract

This paper is concerned with assess the possibility of robust pole assignment of proportional integral(PI) state feedback control system. First, the equivalence relations between a PI control system and an argumented control system proposed by Kawaji and Kim(1994) are extended from the new points of views of invariant closed loop poles. Second, on the relations, a remarkable result that the integral gain of PI control system is directly related to the insensitivity of system is presented. And, it is shown that the design of robust PI pole assignment is possible under the certain conditions.

Keywords