Control Strategy And Practical Study Of Multi-motor Synchronous Coordination

Studying of the multi-motor synchronous movement has always been the difficulty and central issue in the field of motion control, and sine wave Permanent Magnet Synchronous Motor (PMSM), for its outstanding performance, has gradually become an important executing component in the modern industrial automation system. Therefore, regarding the PMSM AC servo system as study object to research multi-motor synchronous control has very important theoretical significance and practical significance. Dealing with the complexity of PMSM AC servo system, advanced intelligent control theory is applied, and improved four motors synchronous control structure is given. Compared with the traditional methods, it can obtain a certain synchronous control effect.The vector control method is mostly applied in PMSM AC servo system, and the conventional PID controller is usually used to control its speed loop. It is difficult to adjust parameters online in time-varying and complicated system for the conventional PID controller, and the gain is unable to be adjusted automatically and the response rate is lower for the single neuron PID regulator, so combining T cell immune tuning mechanism with single neuron PID control, a new immune single neuron PID control algorithm is introduced to improve the learning rate, dynamic response and the performance of single neuron PID controller.Considering the control structure of multi-motor synchronous system, relative coupling control is applied, and based on the single PMSM vector control system, a synchronous control of four motors is achieved.In the MATLAB/Simulink, the modeling and simulation of four-motor synchronous system is researched. When using the relative coupling control structure and applying immune single neuron PI controller of ignoring the differential to the speed loop control of four motors, the results show that the whole synchronization control system has good characteristic on tracking performance, high accuracy in synchronization tracking and strong anti-disturbance capability.