Imperial College London

DrBenoitChachuat

Faculty of EngineeringDepartment of Chemical Engineering

Reader in Process Systems Engineering
 
 
 
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Contact

 

b.chachuat Website

 
 
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Location

 

354ARoderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Houska:2017:10.1002/oca.2309,
author = {Houska, B and Li, JC and Chachuat, B},
doi = {10.1002/oca.2309},
journal = {Optimal Control Applications & Methods},
pages = {489--502},
title = {Towards rigorous robust optimal control via generalized high-order moment expansion},
url = {http://dx.doi.org/10.1002/oca.2309},
volume = {39},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - This paper is concerned with the rigorous solution of worst-case robust optimal control problems havingbounded time-varying uncertainty and nonlinear dynamics with affine uncertainty dependence. We proposean algorithm that combines existing uncertainty set-propagation and moment-expansion approaches.Specifically, we consider a high-order moment expansion of the time-varying uncertainty, and we bound theeffect of the infinite-dimensional remainder term on the system state, in a rigorous manner, using ellipsoidalcalculus. We prove that the error introduced by the expansion converges to zero as more moments are added.Moreover, we describe a methodology to construct a conservative, yet more computationally tractable, robustoptimization problem, whose solution values are also shown to converge to those of the original robustoptimal control problem. We illustrate the applicability and accuracy of this approach with the robust time-optimal control of a motorized robot arm.
AU - Houska,B
AU - Li,JC
AU - Chachuat,B
DO - 10.1002/oca.2309
EP - 502
PY - 2017///
SN - 1099-1514
SP - 489
TI - Towards rigorous robust optimal control via generalized high-order moment expansion
T2 - Optimal Control Applications & Methods
UR - http://dx.doi.org/10.1002/oca.2309
UR - http://hdl.handle.net/10044/1/44448
VL - 39
ER -