Abstract：The traditional control method of a belt conveyor is PID algorithm, whose advantages are simple and high control precision. In the moving process, the speed of the drive motor has uncertainties due to the changeable loads and environment parameters. In addition, the motor speed is nonlinear itself. Thusly, it has troubles in identifying parameters of a dynamical process and building a mathematic model. The traditional methods cannot achieve an ideal control effect. Model free adaptive control is proposed for tracking the control of the whole running status from start to stable operation, and the control after loading. The results indicate that the tracking effect of MFAC is better and its error volatility is smaller.

Keyword：model free adaptive control;belt conveyor;load;PID;