Title :
A worst-case approach to SISO mixed H2/H∞ control
Author :
Bianco, C. Guarino Lo ; Piazzi, A.
Author_Institution :
Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy
Abstract :
This paper presents a worst-case approach to fixed-structure controller design with mixed H2/H∞ specifications for generalized SISO plants subject to structured/unstructured uncertainties. The design problem is reduced to an equivalent semi-infinite optimization problem for which a global solution can be reached through a genetic/interval algorithm. PID example illustrating the design of a PID controller attaining optimal minimax H2 performance for an uncertain nonminimum-phase plant is included.
Keywords :
H∞ control; control system synthesis; feedback; genetic algorithms; linear systems; minimax techniques; three-term control; uncertain systems; H∞ control; H2 control; PID controller; SISO systems; fixed-structure controller; genetic algorithm; interval algorithm; minimax technique; nonminimum-phase systems; optimization; uncertain systems; worst-case analysis; Control design; Design optimization; Hydrogen; Minimax techniques; Optimal control; Robust control; Robust stability; Three-term control; Transfer functions; Uncertainty;
Conference_Titel :
Control Applications, 1998. Proceedings of the 1998 IEEE International Conference on
Print_ISBN :
0-7803-4104-X
DOI :
10.1109/CCA.1998.728596
