Vector control

In the past ten years or twenty years, servo motor market has to shift from a brush servo to brushless servo market, this is mainly due to the low maintenance brushless servo rate and high stability. In this decade, the driving part of the circuit and system aspects of the development of permanent magnet generator technology has been very perfect. Control mode has completely can realize the function described those keywords. Most of the high-performance servo system is controlled by an internal loop to control the torque. The ring by external and internal generator set spare parts torque speed www.dongfeng-motor.com loop and position loop with different control effects in order to achieve. External control loop design is has nothing to do with the matching motor, and the design of the internal torque loop ac motor is closely related to the performance of the matched motor. A brush motor torque control is very simple, because there are brush motor commutation work can be completed. Output torque is poles and a brush motor dc voltage proportional to the input. Torque can be easily controlled by P - I control circuit. P - I the main functions of the control circuit is controlled by detecting the actual current and electric current, the deviation between the input voltage of the motor was adjusted dynamically in real time.