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arXiv · 1305.6394

Enhanced Predictive Ratio Control of Interacting Systems

Minh Hoang-Tuan Nguyen·Kok Kiong Tan·Sunan Huang
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Abstract

Ratio control for two interacting processes is proposed with a PID feedforward design based on model predictive control (MPC) scheme. At each sampling instant, the MPC control action minimizes a state-dependent performance index associated with a PID-type state vector, thus yielding a PID-type control structure. Compared to the standard MPC formulations with separated single-variable control, such a control action allows one to take into account the non-uniformity of the two process outputs. After reformulating the MPC control law as a PID control law, we provide conditions for prediction horizon and weighting matrices so that the closed-loop control is asymptotically stable, and show the effectiveness of the approach with simulation and experiment results.

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Minh Hoang-Tuan Nguyen, Kok Kiong Tan, Sunan Huang. 2013-05-28. Enhanced Predictive Ratio Control of Interacting Systems. https://doi.org/10.1016/j.jprocont.2011.04.002

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