TY - GEN
T1 - High performance control of π/4-multiple-pitched linear hybrid stepping motor with ripple force compensator
AU - Hwang, Tai Sik
AU - Seok, Jul Ki
AU - Kim, Dong Hun
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33749664114&partnerID=8YFLogxK
U2 - 10.1109/IECON.2005.1569162
DO - 10.1109/IECON.2005.1569162
M3 - Conference contribution
AN - SCOPUS:33749664114
SN - 0780392523
SN - 9780780392526
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 1707
EP - 1712
BT - IECON 2005
T2 - IECON 2005: 31st Annual Conference of IEEE Industrial Electronics Society
Y2 - 6 November 2005 through 10 November 2005
ER -