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Title:
LINEAR MOTOR CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/056844
Kind Code:
A1
Abstract:
Provided is a linear motor control apparatus, wherein a vector control type current controlling means (13) is equipped therein. Also equipped is an induced voltage compensating means (31) for adding a voltage compensation value, obtained from a detected velocity value (x•) of a mover and an induced voltage constant (φ), to a q-axis voltage command value (Vq') outputted by a thrust current control unit (18). Also equipped is a position-change inductance compensating means (32) for calculating a q-axis voltage compensation value and a d-axis voltage compensation value, using a detected position value (x), the detected velocity value (x•), a detected q-axis current value (iq), and a detected d-axis current value (id), and compensating the q-axis voltage command value (Vq') and a d-axis voltage command value (Vd').

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Inventors:
AZUMA YOSHIYUKI (JP)
UNNO MAHITO (JP)
SATO TOMOKI (JP)
Application Number:
PCT/JP2011/072005
Publication Date:
May 03, 2012
Filing Date:
September 27, 2011
Export Citation:
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Assignee:
MURATA MACHINERY LTD (JP)
AZUMA YOSHIYUKI (JP)
UNNO MAHITO (JP)
SATO TOMOKI (JP)
International Classes:
H02P25/06
Foreign References:
JP2010130740A2010-06-10
JP2001275375A2001-10-05
JP2001180479A2001-07-03
JP2006288076A2006-10-19
JP2010110145A2010-05-13
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
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