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

Author

Zhao, Tao ; Wang, Mulan ; Pan, Chao ; Wang, Youbin

Author_Institution

Sch. of Autom., Nanjing Inst. of Technol., Nanjing, China

fYear

2010

Firstpage

5503

Lastpage

5507

Abstract

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.

Keywords

PI control; closed loop systems; electric current control; interpolation; machine tools; machine vector control; numerical control; permanent magnet motors; servomechanisms; synchronous motors; velocity control; AC servo feed system; Matlab platform; PI control; current loop; current regulator; double closed-loop control system; interpolation; numerical control machine tool; permanent magnet synchronous motor servo feed system; speed loop; speed regulator; vector control; Computer numerical control; Feeds; Machine tools; Pulse width modulation; Servomotors; Synchronous motors; NC machine tool; PM synchronous motor; feed system; interpolation; vector control;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Jinan

Print_ISBN

978-1-4244-6712-9

Type

conf

DOI

10.1109/WCICA.2010.5554128

Filename

5554128