Application of Brushless Dc Motor in the Production Delivery System

The product delivery system is normally powered by a DC motor. Permanent magnet brushless DC motor small sized, high power density, simple structure, is currently being widely used in a variety of transmission systems. In this paper, a permanent magnet motor position sensorless actuator for the production of a delivery system is studied. The actuator position control algorithm of the EGR system of the DC motor is studied and the lag characteristic test is carried out. Through the use of symmetrical triangular wave duty cycle input and output control signals. The corresponding duty cycle characteristics of the switch indicate that the actuator has a significant hysteresis characteristic and should not be used in an open loop control. A double closed-loop control algorithm has been design, including two control loop position loops and current loops, to study the PT1 filtering algorithm and the anti-saturation PID algorithm of the basic control module. The stepping test and steady-state test results show that the steady-state error of the control algorithm can achieve fast and smaller step response.