Improved Deviation Coupling Synchronous Control Based On Adaptive Fuzzy PID

Abstract

To improve the flow control quality of an engine flow regulator, the synchronous control strategy of multi-servo mechanism driving flow regulator was studied. The position loop model of servo mechanism is constructed and an adaptive fuzzy PID tracking controller is designed to replace the traditional PID controller to realize the on-line real-time adjustment of servo control parameters under load disturbance. Based on the analysis of the constraints of different position servo mechanisms of the flow regulator, a new control strategy of improved deviation coupling synchronization is proposed by introducing a nonlinear coupling factor, which is related to the deviation and the position information. The simulation and experimental results show that the synchronization control strategy has higher synchronization accuracy, smaller load disturbance response than the conventional coordinated control strategy, and reduces the influence of parameters difference of servo mechanism.