Research On Synchronously Driven Control Of Many AC Servo Motors

With the development of science and technology, the application more and more in control of the single motor has been can not meet the requirements of large manufacturing equipment to its technical index and the quality of the products. The motor linear complex system, the control effect of multi AC servo motor synchronous control is difficult to meet the requirements of high precision synchronous control equipment. Therefore, in order to further improve the synchronization accuracy of multi-motor synchronous control system, analysis of the design and control algorithm of the control structure of the synchronization control system of AC servo motor.All the research contents of this thesis mainly includes the following parts:Introduces the advantages and application prospect of basic concepts and AC servo motor synchronous control technology of the multi-motor, analyzes the basic speed control of AC servo motor control principle, choose the vector control method of current control method. And established in line with AC servo motor model in this study required in MATLAB SIMULINK.Analyzing the influence factors of the multi-motor synchronous control system synchronization error, and gives the method to suppress these factors; the simulation results show that the control structure can make the system has stable performance and good synchronization performance.Combined with the inverse design method and sliding mode control algorithm design of the adaptive sliding mode controller using the estimated inversion, uncertain systems adaptive bound by Lyapunov’s function. Simulation results show that the AC servo motor in the design of synchronous control has good robustness.In order to validate the multi-motor synchronous control system control performance of structure, this paper designed an experimental platform for motion control card as the control core, including three AC servo motor.The difficulty is how to get the synchronization control algorithm is more reasonable and advanced,To sum up, with a certain theoretical guidance synchronization performance, reliability and stability of the research for improving the multi-motor synchronous control system.