High performance control of π/4-multiple-pitched linear hybrid stepping motor with ripple force compensator

Tai Sik Hwang, Jul Ki Seok, Dong Hun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A linear hybrid stepping motors (LHSMs) have been widely used owing to its simple structure and ripple-free holding force at aligned position. Despite its attractive features, the LHSM delivers the significant thrust vibrations during position-to-position movement, that are the dominant cause of the positioning error, mechanical stress, and acoustic noise. In order to overcome this defect, we propose an active control scheme to damp the vibration for π/4-multiple-pitched LHSM by the feed-forward compensation signal. Utilizing a reluctance network and FEM analysis that incorporate the factors of non-uniform air gap, manufacturing tolerance, and nonlinear material properties, the LHSM with force ripple components is modeled as a nonlinear position-dependent function. The damping force signal is estimated from the Jacobian linearization observer and the positioning accuracy is significantly improved through a closed-loop control scheme for restraining the thrust ripple.

Original languageEnglish
Title of host publicationIECON 2005
Subtitle of host publication31st Annual Conference of IEEE Industrial Electronics Society
Pages1707-1712
Number of pages6
DOIs
StatePublished - 2005
EventIECON 2005: 31st Annual Conference of IEEE Industrial Electronics Society - Raleigh, NC, United States
Duration: 6 Nov 200510 Nov 2005

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2005

Conference

ConferenceIECON 2005: 31st Annual Conference of IEEE Industrial Electronics Society
Country/TerritoryUnited States
CityRaleigh, NC
Period6/11/0510/11/05

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