Title :
Stability robustness of LQ optimal regulators for the performance index with cross-product terms
Author :
Chung, Dohyoung ; Kang, Taesam ; Lee, Jang Gyu
Author_Institution :
Dept. of Control & Instrum. Eng., Seoul Nat. Univ., South Korea
fDate :
8/1/1994 12:00:00 AM
Abstract :
Suggested are the guaranteed stability margins of LQ optimal regulators for the performance index with cross-product terms, using modified return difference equality. Sufficient conditions to guarantee the required stability margins are presented as well as the conditions to guarantee the stability margins of standard LQ optimal regulators. An example for LQ optimal control of a DC motor system is given to demonstrate how the weighting matrices can be chosen to guarantee the required stability margins
Keywords :
DC motors; machine control; optimal control; performance index; stability; DC motor system; LQ optimal regulators; cross-product terms; guaranteed stability margins; modified return difference equality; optimal control; performance index; stability robustness; sufficient conditions; weighting matrices; Control systems; Delay effects; Delay systems; Optimal control; Performance analysis; Regulators; Riccati equations; Robust control; Robust stability; Sufficient conditions;
Journal_Title :
Automatic Control, IEEE Transactions on
