Title:
INVERTER CONTROL METHOD AND MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059467
Kind Code:
A1
Abstract:
The present invention reduces stress in the radial direction when a motor is rotating. When the rotational speed (ωm) of the motor is a first speed (v5), the value of the amplitude (|Vs|) of an applied voltage (Vs) is obtained by multiplying a first voltage value with a first ratio. When the rotational speed is a second speed (v6), the value of the amplitude of the applied voltage is obtained by multiplying a second voltage value with a second ratio. The first voltage value is the value of the maximum amplitude that can be obtained when the motor is outputting a prescribed torque at the first speed. The second voltage value is the value of the maximum amplitude that can be obtained when the motor is outputting the prescribed torque at the second speed. The second speed is faster than the first speed, and the second ratio is smaller than the first ratio.
Inventors:
ARAKI TAKESHI (JP)
KOBAYASHI NAOTO (JP)
KOBAYASHI NAOTO (JP)
Application Number:
PCT/JP2019/034334
Publication Date:
March 26, 2020
Filing Date:
September 02, 2019
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
H02P27/08; H02M7/48
Foreign References:
| JP2015128355A | 2015-07-09 | |||
| JP2011024276A | 2011-02-03 | |||
| JP2013219866A | 2013-10-24 | |||
| JP2015211561A | 2015-11-24 |
Other References:
See also references of EP 3855615A4
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (JP)
Download PDF: