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Patent Searching and Data


Title:
MOTOR DRIVE METHOD AND MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065954
Kind Code:
A1
Abstract:
This motor drive method is a method in which a motor drive device drives a motor, the motor drive device comprising: an inverter that adjusts supply power to the motor, which is a synchronous machine; and a controller that controls the inverter. In the method, when a speed region in which the motor can be operated at a substantially constant speed is a first speed region and when a speed region in which operation at a lower speed than the first speed region including zero speed is a second speed region, the motor speed is caused to transition before the occurrence of step-out.

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Inventors:
YOKOYAMA, Takahiro (Umeda Center Building, 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
MIYAJIMA, Takayuki (Umeda Center Building, 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
Application Number:
JP2020/037018
Publication Date:
April 08, 2021
Filing Date:
September 29, 2020
Export Citation:
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Assignee:
DAIKIN INDUSTRIES, LTD. (4-12 Nakazaki-Nishi 2-chome, Kita-ku, Osaka-sh, Osaka 23, JP)
International Classes:
H02P6/18
Attorney, Agent or Firm:
ITOH, Tadashige et al. (Marunouchi MY PLAZA 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, JP)
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