Title :
Strategies for Computing Switching Feedback Controllers
Author :
Wernrud, Andreas
Author_Institution :
Lund Univ., Lund
Abstract :
We consider the problem of computing suboptimal feedback switching controllers for discrete dynamical systems. The paper shows how to combine convex optimization techniques with relaxed dynamic programming. We apply the method to several problems that have been considered recently in the literature. A particularly interesting example is given by a DC-DC converter. The proposed algorithm has several interesting properties. The main theoretical result of this paper is the introduction of a new approximate policy iteration algorithm which is shown to converge to the optimal cost function.
Keywords :
DC-DC power convertors; convex programming; discrete systems; dynamic programming; feedback; DC-DC converter; approximate policy iteration algorithm; convex optimization; discrete dynamical systems; optimal cost function; relaxed dynamic programming; suboptimal feedback switching controllers; switching feedback controllers; Adaptive control; Cities and towns; Control systems; Cost function; DC-DC power converters; Discrete time systems; Dynamic programming; Feedback; Optimal control; Polynomials;
Conference_Titel :
American Control Conference, 2007. ACC '07
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0988-8
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2007.4283079