Modeling and simulation of speed loop control technology for permanent magnet synchronous motor servo system*

摘要

Speed control loop is the intermediate link of the three control loops in the position servo system. The control method and technology of the speed control loop play an important role in the response of the whole system. This paper is based on the analysis of working principle of the permanent magnet synchronous motor, the principle of space vector control and the average equivalent principle of SVPWM algorithm. For the purpose of improving the speed control loop, precise PI control and angular position control are used to make permanent magnet synchronous motor operation characteristics excellent, though system modeling and simulation, system control parameter optimization.