Title :
Linear quadratic regulator loop shaping for high frequency compensation
Author :
Geray, Okan ; Looze, Douglas P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
Abstract :
This paper establishes a design technique that incorporates high-frequency design specifications into the framework of the LQG/LTR technique. This is accomplished by augmenting plant input with extra dynamics. Singular perturbation techniques are used to select input weighting functions for the LQR design. The change in nominal design due to the plant input augmentation is quantified. An estimate of the change of the loop transfer function in the performance region is also determined
Keywords :
compensation; control system synthesis; dynamics; linear systems; perturbation techniques; transfer functions; LQG/LTR technique; dynamics; high frequency compensation; input weighting functions; linear quadratic regulator; linear time invariant systems; loop shaping; loop transfer function; plant input; singular perturbation; Cost function; Feedback loop; Filters; Frequency dependence; Frequency domain analysis; Output feedback; Perturbation methods; Regulators; Shape; Transfer functions;
Conference_Titel :
Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
0-7803-1968-0
DOI :
10.1109/CDC.1994.410949
