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http://dx.doi.org/10.5302/J.ICROS.2010.16.2.140

A Frozen Time Receding Horizon Control for a Linear Discrete Time-Varying System  

Oh, Myung-Hwan (삼성코닝정밀유리)
Oh, Jun-Ho (한국과학기술원 기계공학과)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.16, no.2, 2010 , pp. 140-144 More about this Journal
Abstract
In the case of a linear time-varying system, it is difficult to apply the conventional stability conditions of RHC (Receding Horizon Control) to real physical systems because of computational complexity comes from time-varying system and backward Riccati equation. Therefore, in this study, a frozen time RHC for a linear discrete time-varying system is proposed. Since the proposed control law is obtained by time-invariant Riccati equation solved by forward iterations at each control time, its stability can be ensured by matrix inequality condition and the stability condition based on horizon for a time-invariant system, and they can be applied to real physical systems effectively in comparison with the conventional RHC.
Keywords
receding horizon control; frozen time approach; horizon size; stability;
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