Title:
PM MOTOR POSITION-SENSORLESS CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/024780
Kind Code:
A1
Abstract:
[Problem] In a PM motor position-sensorless control device, an estimation phase is not accurately estimated in a low speed region. [Solution] Provided is an induction power calculation unit in which a current detection value at a coordinate γ-δ during a zero voltage vector period and current differential information are input and speed electromotive forces eγ, eδ are calculated. The calculated speed electromotive forces eγ, eδ are input into a rotation speed estimation unit, estimated speed ωˆ is determined, and by performing time integration of the estimated speed, estimated phase Өˆ is calculated.
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Inventors:
TAKIGUCHI MASASHI
ONO YUMEKI
ONO YUMEKI
Application Number:
PCT/JP2012/070312
Publication Date:
February 21, 2013
Filing Date:
August 09, 2012
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
TAKIGUCHI MASASHI
ONO YUMEKI
TAKIGUCHI MASASHI
ONO YUMEKI
International Classes:
H02P6/18; H02P6/06; H02P6/08; H02P6/17; H02P6/182; H02P6/28; H02P21/00; H02P21/14; H02P21/18; H02P21/22; H02P21/24; H02P21/28; H02P23/14; H02P23/16; H02P27/04; H02P27/08
Foreign References:
| JP2001251889A | 2001-09-14 | |||
| JP2008092781A | 2008-04-17 | |||
| JP2006262590A | 2006-09-28 | |||
| JP2004343963A | 2004-12-02 | |||
| JP2007097263A | 2007-04-12 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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