With the large-scale application of servo system, servo drive use, servo drive debugging, servo drive repair are servo drives in today's more important technical issues, more and more industrial technology service providers on servo drive technology in-depth research.
Servo drive is an important part of modern motion control and is widely used in industrial robots and CNC processing centers and other automation equipment. In particular, servo drivers used to control AC permanent magnet synchronous motors have become a hot research topic at home and abroad. At present, the current, speed and position 3 closed-loop control algorithm based on vector control are widely used in AC servo driver design. Whether the speed closed-loop design is reasonable or not in this algorithm plays a key role in the performance of the whole servo control system, especially speed control.