Title:
CONTROL DEVICE FOR INVERTER
Document Type and Number:
Japanese Patent JP2022119590
Kind Code:
A
Abstract:
To provide a control device for an inverter capable of suppressing the generation of noise due to the overlapping of plurality types of frequencies while suppressing the reduction in efficiency and suppressing deterioration of functionality.SOLUTION: It is determined whether a motor has entered a rotation speed range in which the motor rotation speed is to be set by adding or subtracting a predetermined value to or from a rotation speed N at which two or more of a carrier frequency fc generated from the motor, a carrier sideband frequency fs, a motor's natural frequency fr, and a torque ripple occurrence frequency fo overlap. Then, when a predetermined time elapses while the motor speed remains in the speed range including the rotation speed N, the carrier frequency fc about the motor is raised to the predetermined frequency.SELECTED DRAWING: Figure 2
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Inventors:
TAKAKURA TOSHIKI
MASUO DAISUKE
MASUO DAISUKE
Application Number:
JP2021016839A
Publication Date:
August 17, 2022
Filing Date:
February 04, 2021
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
H02M7/48; H02P5/46; H02P27/08
Domestic Patent References:
| JP2017007616A | 2017-01-12 | |||
| JP2018117400A | 2018-07-26 | |||
| JP2019146380A | 2019-08-29 | |||
| JP2018107978A | 2018-07-05 | |||
| JP2011172303A | 2011-09-01 |
Foreign References:
| WO2018042895A1 | 2018-03-08 | |||
| WO2018011968A1 | 2018-01-18 |
Attorney, Agent or Firm:
Yuichi Minagawa