Title :
A comparison of frequency domain design and l1-optimal control
Author :
Jayasuriya, Suhada ; Sobhani, M. ; Zentgraf, Peter
Author_Institution :
Dept. of Mech. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A frequency-domain design methodology is applied to a DC motor speed control system and the results are compared to those obtained using l1-optimal control theory (see J. B. Pearson and B. Bamieh, (1990)). Both methods synthesize controllers that maximize the allowable size of an unknown-but-bounded disturbance while satisfying prespecified constraints on the control, the control rate, and the outputs. The frequency-domain design technique in general results in much lower-order compensators than those required by the l1-optimal method for a given size of disturbance. Also, the design trade-offs regarding the bandwidth of the system, the size of the disturbance input, and the structural complexity of the controller transfer function become quite transparent
Keywords :
DC motors; control system synthesis; frequency-domain analysis; machine control; optimal control; velocity control; DC motor speed control system; control system synthesis; frequency domain design; l1-optimal control; machine control; transfer function; Bandwidth; Control system synthesis; Control systems; Control theory; DC motors; Design methodology; Frequency domain analysis; Size control; Transfer functions; Velocity control;
Conference_Titel :
Decision and Control, 1991., Proceedings of the 30th IEEE Conference on
Conference_Location :
Brighton
Print_ISBN :
0-7803-0450-0
DOI :
10.1109/CDC.1991.261843
