Optimal Control and Scheduling of Switched Systems

被引:70
作者
Goerges, Daniel [1 ]
Izak, Michal [1 ]
Liu, Steven [1 ]
机构
[1] Univ Kaiserslautern, Dept Elect & Comp Engn, Inst Control Syst, D-67663 Kaiserslautern, Germany
关键词
Piecewise quadratic (PWQ) Lyapunov functions; reachability analysis; receding-horizon control (RHC); relaxed dynamic programming; stability analysis; switched systems; MODEL-PREDICTIVE CONTROL; PIECEWISE AFFINE; STABILITY;
D O I
10.1109/TAC.2010.2085573
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This technical note addresses optimal control and scheduling (controlled switching) of discrete-time switched linear systems. A receding-horizon control and scheduling (RHCS) problem is introduced and solved by dynamic programming, leading to a combinatorial optimization problem with exponential complexity. By relaxed dynamic programming, complexity is reduced while relaxing optimality within prespecified bounds. The resulting RHCS strategy is expressed explicitly as a piecewise linear state feedback control law defined over regions implied by quadratic forms. Closed-loop stability is not guaranteed inherently for the RHCS strategy. Therefore, a posteriori stability criteria based on piecewise quadratic Lyapunov functions are proposed. Finally, a region-reachability criterion is presented.
引用
收藏
页码:135 / 140
页数:6
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