Suppression of Hunting in an ILPMSM Driver System Using Hunting Compensator

Author

Wei-Hann Yao ; Pi-Cheng Tung ; Chyun-Chau Fuh ; Fu-Chu Chou

Author_Institution

Dept. of Mech. Eng., Nat. Central Univ., Chungli, Taiwan

Volume

60

Issue

7

fYear

2013

fDate

7/1/2013 12:00:00 AM

Firstpage

2586

Lastpage

2594

Abstract

This paper presents the suppression of hunting in an ironless linear permanent-magnet synchronous motor (ILPMSM) driver system using a hunting compensator. In high-precision motion control servo systems, hunting induced by nonlinear elements such as friction and saturation will reduce the system performance. Hunting means that limit cycle occurs in the system, causing a series of sustained oscillations. The hunting compensator is designed based on the circle criterion to ensure system stability. The effectiveness of the proposed control scheme is verified by simulation and experimental results. The proposed algorithm is experimentally tested on an ILPMSM drive system, and the experimental results confirm the ability of the hunting compensation scheme to suppress the effects of hunting.

Keywords

linear synchronous motors; machine control; motion control; nonlinear control systems; permanent magnet motors; stability; synchronous motor drives; synchros; ILPMSM driver system; friction; high-precision motion control servosystem; hunting compensation scheme; hunting compensator; hunting suppression; ironless linear permanent-magnet synchronous motor; nonlinear element; saturation; sustained oscillation; system stability; Adaptation models; Electromagnetics; Equations; Force; Friction; Mathematical model; Velocity control; Hunting; hunting compensator; ironless linear permanent-magnet synchronous motor (ILPMSM);

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2012.2196014

Filename

6189385