Multi-motor In Synchronous Control Strategies Based On Fuzzy PID Compensator

Multiple motors have been widely used for driving systems in recent years to meet the increased requirement of driving systems. In order to improve the dynamic and static performances, and to increase the load ability of the system, the problem of synchronized drive of multiple motors must be taken seriously, thus, the synchronized control of multiple motors is very important. At present, there are many multi-motor synchronous control strategies. In the thesis, relative coupling control strategy is applied, and velocity synchronous compensator is established based on fuzzy-PID algorithms. According to genetic algorithm, parameters of PID controller are determined. At last, the purpose of synchronous control of the speed is accomplished in case of synchronization for multiple motors.Firstly, in the thesis, the characteristics and theorems of the synchronous control system are analyzed. According to the merits of relative coupling control, the method of designing fuzzy-PID compensator is presented. Secondly existing equipments in the Rockwell laboratory are used to set up testing circumstance, which resemble actual products condition. Applying these requirements, design hardware flat of the synchronous control system. Base on timing system of single PMSM, achieve the multi-motor synchronous control. At the same time, design hardware and software part. The primary works of this part include but not limited to: establishing control system networks; designing hardware connections; configurating motion control module; drawing ladder diagram of motion control. According to multi-motor synchronous control method designed, this system can keep fine disturbance rejection ability, so that better following performance and synchronous precision is attained. Simulation results given via MATLAB and experimental results illustrate the effectiveness and the practicability of the proposed algorithm.Finally, the research work in this thesis is concluded, and the other problems in the multi-motor synchronous control system are analyzed and the interested directions in the future are described.