Relay-based force ripple and friction modeling for the permanent magnet linear motor

Author

Chen, Si-Lu ; Huang, Sunan ; Tan, Kok Kiong

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

fYear

2008

fDate

17-20 Dec. 2008

Firstpage

2015

Lastpage

2019

Abstract

Nonlinearities including friction and force ripple, exist in the permanent magnet linear motors, which limit control precision. In this paper, the dynamics model of the linear motor under nonlinear effects are first given. Parameter estimation via limit cycle experiments using the dual-relay feedback apparatus are proposed. Guidelines for choosing appropriate relay gains to tune the limit cycle amplitudes and frequencies within the feedback system with friction and force ripple are also provided. All the results are verified by simulation.

Keywords

control nonlinearities; feedback; friction; limit cycles; linear motors; machine control; parameter estimation; permanent magnet motors; relays; dual-relay feedback apparatus; feedback system; friction modeling; nonlinear effects; nonlinearities; parameter estimation; permanent magnet linear motor; relay-based force ripple; Control nonlinearities; Force control; Force feedback; Friction; Guidelines; Limit-cycles; Nonlinear dynamical systems; Parameter estimation; Permanent magnet motors; Relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation, Robotics and Vision, 2008. ICARCV 2008. 10th International Conference on

Conference_Location

Hanoi

Print_ISBN

978-1-4244-2286-9

Electronic_ISBN

978-1-4244-2287-6

Type

conf

DOI

10.1109/ICARCV.2008.4795840

Filename

4795840