Active Disturbance Rejection Control of T-type Three-level Permanent Magnet Motor Drive System

The suppression of current harmonics is very important to improve the performance of permanent magnet synchronous motor. Therefore, this paper uses T-type three-level inverter to drive permanent magnet synchronous motor, which can effectively suppress current harmonics. In addition, since permanent magnet synchronous motor is easily affected by external disturbance in complex environment, the motor speed performance deteriorates, so active disturbance rejection control technology is used to improve its control performance. This paper analyzes the advantages of t - type three - level inverter, studies the t - type three - level SVPWM modulation technology and the design of active disturbance rejection controller. A simulation model is established in MATLAB to verify the advantages of T-type three-level inverter driven by active disturbance rejection technology.