Title :
Model reduction by low frequency approximation of internally balanced representation
Author :
Prakash, Rajiva ; Rao, S. Vittal
Author_Institution :
Dept. of Electr. Eng., Missouri Univ., Rolla, MO, USA
Abstract :
A modified balancing model-reduction method is proposed for frequency domain robust control system design. The reduced-order model is obtained by approximating the states of the weak subsystem of the balanced representation around zero frequency. Several properties and error bounds of the reduced model are derived. A critical comparison is made with B.C. Moore´s (1981) reduced-order model obtained by direct truncation. A numerical example is included
Keywords :
control system synthesis; frequency-domain analysis; modelling; balanced representation; error bounds; frequency domain; model-reduction; reduced-order model; robust control system design; Bandwidth; Control design; Controllability; Design methodology; Frequency domain analysis; Mathematical model; Observability; Reduced order systems; Robust control; Steady-state;
Conference_Titel :
Decision and Control, 1989., Proceedings of the 28th IEEE Conference on
Conference_Location :
Tampa, FL
DOI :
10.1109/CDC.1989.70612
