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Research of high performance AC servo feed system for NC machine tool

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4 Author(s)
Tao Zhao ; Sch. of Autom., Nanjing Inst. of Technol., Nanjing, China ; Mulan Wang ; Chao Pan ; Youbin Wang

The servo feed system is an important factor affecting the performance of NC (numerical control) machine tool. A high performance permanent magnet synchronous motor (PMSM) servo feed system of NC machine tool based vector control is introduced in this paper, and a double closed-loop control system with the speed and current loop is applied. The speed regulator adopts PI control, and the current regulator adopts current hysteresis band. The simulation Model of AC PMSM servo feed system is constructed in Matlab platform,according to the CNC servo system performance requirements,simulation and study for different interpolation is implemented. The reasonability and validity have been testified by simulate result,which provide a theoretic basement for optimizing performance of AC servo feed system.

Published in:

Intelligent Control and Automation (WCICA), 2010 8th World Congress on

Date of Conference:

7-9 July 2010