Application of the Generalized Predictive Control in Time Delay System

Solving the output prediction is the chief work aimming at the object with time delay. The generalized predictive control algrithm predicts the future output using the current and past system error and predictive model.. In the paper,the generalized predictive controller is deduced based on the controlled auto-regression integral moving average model. The generalized predictive model is identified by the on-line least square method of weaked memory recursion. The controller is optimized by rolling window under the quadratic form performance index. Experiments in the temperature control system show that the generalized predictive controller can overcome the side effects caused by time delay and satisfy the performance of no overshoot and no steady-state error.