转杯纺直驱高速无刷电机无传感控制系统设计OA

In view of the problems of difficult installation of motor sensors and unstable rotational speed in the single-spindle high-speed drive system of traditional rotary cup spinning machines,this study proposes a sensorless control algorithm that adopts high-speed brushless DC motor sliding mode adaptive observation+PID(Proportional In-tegral Derivative)control,combined with the motor vector control mode to achieve precise motor control.By impro-ving the structure of the sliding mode observer,the slow approach rate and motor buffing problems of the traditional sliding mode observation algorithm are reduced,achieving rapid and accurate estimation of the rotor position and en-hancing the robustness of the system.The drive and control system of the rotary cup spinning motor is developed by a-dopting embedded control technology.The control algorithm is transplanted and implemented,which solves the prob-lems of low speed,large speed buffering and difficult sensor installation in the traditional rotary cup spinning motor system.Through experimental tests,the goal of high stable rotational speed and sensorless control of the high-speed brushless motor system for rotary cup spinning is achieved.The chattering rate at a high motor speed of 100 000 rpm is within 2%.