Feedback Linearization And Space Vector Compound Control System Of Permanent Magnet Synchronous Motor

Permanent magnet synchronous motor with small size, efficiency and power factor has been widely used in various fields. At present, the study of permanent magnet synchronous motor is focused on the improvement of the reliability and accuracy of the control. Because of the nonlinearity and strong coupling of permanent magnet synchronous motor, it is difficult to control the permanent magnet synchronous motor, so it has important significance to control the motor and control the motor.In this paper, the control of permanent magnet synchronous motor is studied by using feedback linearization decoupling control and space vector pulse width modulation technique. The principle and control method of permanent magnet synchronous motor are analyzed. The double closed-loop control system of the current loop and speed loop is designed based on the compound control method. The main research contents are as follows:(1) The use of space vector pulse width modulation(SVPWM) is used as the PWM inverter to obtain the switching signal. Because of the high voltage utilization and the voltage harmonics, it can improve the accuracy of the permanent magnet synchronous motor.(2) A feedback linearization controller is designed to realize the decoupling control of permanent magnet synchronous motor(PMSM). Based on Matlab/simulink, the control system of permanent magnet synchronous motor is simulated.(3) Software and hardware control system based on TMS320F28335 chip, development and design.