The situation of servo motor control technology
In recent years, the servo motor control technology is moving in the exchange, digital, intelligent three directions. CNC machine tools as the executive body of the servo system will power electronic devices, control, drive and protection as one set, and with the forward of digital pulse width modulation technology, special electrical materials technology, microelectronic technology and modern control technology, microelectronic technology and modern control technology, experiencing from step to DC, then to the exchange of development processes.
Servo motor control technology’s development has promoted the development of high speed machining technology. After 80 years, CNC gradual apply servo motor as driving device. Brushless servo motor is brushless structure within, it almost with no maintenance, and the size is relatively small. AC servo system has been replaced DC servo system in a wide range at present.
