The effect of sample/hold time on initial feasible set in model predictive control design

Abstract

Sample/Hold (S/H) time plays an important role in the implementation of Model Predictive Control (MPC). The purpose of this paper is to investigate how the S/H time effects the size of initial feasible set in MPC design. Many factors influence S/H time choice, e.g. the process dynamics, the computational power of the implementation platform, etc. An illustrated example is given to show how to select S/H time in MPC designs, especially from the perspective of trade-off between their on-line computational complexity, initial feasible set, and closed-loop performance.