Title :
Multirate discretization of analog controllers
Author :
Rafee, Nadra ; Chen, Tongwen ; Malik, Om P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
Two approaches are discussed for multirate discretisation of analog controllers: the first one allows an easy extension of any conventional single-rate discretization method; and the second one is based on an optimal multirate digital redesign, considering both the closed-loop stability and performance. A design procedure is given for the second approach using H2 optimization with a causality constraint
Keywords :
closed loop systems; control system synthesis; digital control; discrete time systems; multivariable systems; optimal control; optimisation; stability; H2 optimization; analog controllers; causality constraint; closed-loop stability; digital control; multirate discretization; single-rate discretization; Constraint optimization; Control systems; Costs; Design optimization; Digital control; Digital systems; Open loop systems; Optimal control; Sampling methods; Stability;
Conference_Titel :
Electrical and Computer Engineering, 1996. Canadian Conference on
Conference_Location :
Calgary, Alta.
Print_ISBN :
0-7803-3143-5
DOI :
10.1109/CCECE.1996.548213
