Title :
Necessary and sufficient conditions for existence of decoupling controllers
Author_Institution :
Dept. of Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
It is well known that if the plant is free from coincidences of poles and zeros in the right half plane then it can be decoupled with internal stability under unity-feedback configuration. We consider plants for which such coincidences do occur and give necessary and sufficient conditions under which stabilizing decoupling controllers exist. The conditions are explicit and can be easily checked; essentially the only computation required is the inverse of a rational matrix
Keywords :
closed loop systems; poles and zeros; stability; transfer function matrices; closed loop systems; decoupling controllers; internal stability; necessary conditions; poles; rational matrix; sufficient condition; transfer matrix; unity-feedback; zeros; Control engineering; Control systems; Councils; Filtering theory; Open loop systems; Poles and zeros; Stability; Sufficient conditions;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.478640
