Hydraulic roll-bending predictive control based on time series prediction error compensation

摘要

In this article, considering the characteristics of nonlinearity, time-variables, and disturbance in hydraulic roll-bending system, a generalized predictive control scheme based on time series prediction error compensation was proposed. A time series prediction model was used to compensate the future sequence error, which not only made the system have strong anti-interference and robustness, but also improved target tracking accuracy and stability of the system. The control algorithm was simplified by introducing control increment attenuation factors into the predictive control model, and thus, system response speed and real-time performance were improved obviously. The results obtained from simulation validated the feasibility and effectiveness of the algorithm.