Grey predictive PID control of the tensioning device system in belt conveyor

According to the nonlinearity and time-variation of the tension control system in belt conveyor, a new kind of tension control system based on the grey prediction PID control theory was designed. The established grey system model could describe the uncertainty and incompleteness of the controlled object, the grey predictive PID control could obtain the law of the system development base on sampling information of the system behavior data, then, the advanced control input could be determined on the basis of the system future behavior trends. Simulation analysis and experimental results show that the grey predictive PID controller has fast response, high control precision, strong robustness, strong interference suppression ability and other advantages, and it can meet the dynamic performance requirements of the tension control system in belt conveyor.