A fast MPC algorithm for reducing computation burden of MIMO

作者:Qi, Rongbin*; Mei, Hua; Chen, Chao; Qian, Feng
来源:Chinese Journal of Chemical Engineering, 2015, 23(12): 2087-2091.
DOI:10.1016/j.cjche.2015.10.008

摘要

The computation burden in the model-based predictive control algorithm is heavy when solving QR optimization with a limited sampling step, especially for a complicated system with large dimension. A fast algorithm is proposed in this paper to solve this problem, in which real-time values are modulated to bit streams to simplify the multiplication. In addition, manipulated variables in the prediction horizon are deduced to the current control horizon approximately by a recursive relation to decrease the dimension of QR optimization. The simulation results demonstrate the feasibility of this fast algorithm for MIMO systems.