Move blocking strategies in receding horizon control
Cagienard R. and Grieder P. and Kerrigan E. C. and Morari M.
Proc. 43rd IEEE Conference on Decision and Control, December 2004Abstract
In order to deal with the computational burden
of optimal control, it is common practice to reduce the degrees
of freedom by fixing the input or its derivatives to be constant
over several time-steps. This policy is referred to as move
blocking.
This paper will address two issues. First, a survey of various
move blocking strategies is presented and the shortcomings
of these blocking policies, such as the lack of stability and
constraint satisfaction guarantees, will be illustrated. Second,
a novel move blocking scheme, Moving Window Blocking
(MWB), will be presented. In MWB, the blocking strategy
is time-dependent such that the scheme yields stability and
feasibility guarantees for the closed-loop system. Finally, the
results of a large case-study are presented that illustrate the
advantages and drawbacks of the various control strategies
discussed in this paper.
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BibTex Entry
- @InProceedings{cagienard:grieder:kerrigan:morari:2004,
- author = {Cagienard R. and Grieder P. and Kerrigan E. C. and Morari M.},
- title = {Move blocking strategies in receding horizon control},
- address = {Paradise Island, Bahamas},
- booktitle = {Proc. 43rd IEEE Conference on Decision and Control},
- bibkey = {cagienard:grieder:kerrigan:morari:2004},
- month = {December},
- year = {2004}
- }
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