標題: EXTENSION OF LINEAR QUADRATIC OPTIMAL-CONTROL THEORY FOR MIXED BACKGROUNDS
作者: LEE, BK
CHEN, BS
LIN, YP
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 1-十月-1991
摘要: The problem of finding an optimal controller, while both deterministic and stochastic signals are present in the feedback system, is addressed. A general framework is developed to solve the above problem and to unify conventional frequency domain LQ and LQG optimal control theories. Both the system transient and steady-state behaviours are considered and the exact tracking of the arbitrary reference signal is guaranteed. The decomposition of a mixed signal into the deterministic and stochastic parts gives a chance to investigate the effect of the weighting factors, which were specified in the cost function, on the compromise between transient and steady-state system performance. The solution, which characterizes the structure of the optimal controller, results in a set of independent diophantine equations, instead of a set of coupled ones. Moreover, the number of equations can be reduced under weak conditions. Finally, both transient command tracking and steady-state noise rejection capabilities can be optimized simultaneously by using a two-parameter control scheme.
URI: http://dx.doi.org/10.1080/00207179108934194
http://hdl.handle.net/11536/149094
ISSN: 0020-7179
DOI: 10.1080/00207179108934194
期刊: INTERNATIONAL JOURNAL OF CONTROL
Volume: 54
起始頁: 943
結束頁: 972
顯示於類別:期刊論文