Title:
MOTOR CONTROL DEVICE AND DRIVE SYSTEM EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2022/154027
Kind Code:
A1
Abstract:
This motor control device controls an AC synchronous motor through sensorless control that does not use a rotor position sensor. The motor control device includes a first position estimator that estimates the position of a rotor of the AC synchronous motor in a fixed coordinate system according to a first estimation method, a second position estimator that estimates the position of the rotor of the AC synchronous motor in the fixed coordinate system according to a second estimation method that is different from the first estimation method, and a drive control means that drives the AC synchronous motor on the basis of the results of estimation by the first position estimator and the second position estimator.
Inventors:
UMINO HIKARU (JP)
Application Number:
PCT/JP2022/000804
Publication Date:
July 21, 2022
Filing Date:
January 12, 2022
Export Citation:
Assignee:
ORIENTAL MOTOR CO LTD (JP)
International Classes:
H02P6/182; H02P6/185
Foreign References:
| JP2008220100A | 2008-09-18 | |||
| JP2018042336A | 2018-03-15 | |||
| JP2016100964A | 2016-05-30 | |||
| JP2010074898A | 2010-04-02 | |||
| JP2008011616A | 2008-01-17 | |||
| JP2002091558A | 2002-03-29 | |||
| JP2002058294A | 2002-02-22 | |||
| JP2010109528A | 2010-05-13 | |||
| JP2014128887A | 2014-07-10 | |||
| JP2006158046A | 2006-06-15 | |||
| JPH1094298A | 1998-04-10 |
Other References:
Z. CHEN: "An Extended Electromotive Force Model for Sensorless Control of Interior Permanent-Magnet Synchronous Motors", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 50, no. 2, April 2003 (2003-04-01), pages 288 - 295, XP011073826
T. AIHARA, SENSORLESS TORQUE CONTROL OF SALIENT-POLE SYNCHRONOUS MOTOR AT ZERO-SPEED OPERATION
T. AIHARA, SENSORLESS TORQUE CONTROL OF SALIENT-POLE SYNCHRONOUS MOTOR AT ZERO-SPEED OPERATION
Attorney, Agent or Firm:
AI ASSOCIATION OF PATENT AND TRADEMARK ATTORNEYS (JP)
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