Title:
INVERTER DEVICE AND METHOD FOR DETERMINING LIGHT LOAD OF MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/173274
Kind Code:
A1
Abstract:
An inverter device (1) comprises an electric power conversion part (10) that generates an AC voltage that drives a motor (3), a load detection unit (21) that detects the load on the motor (3), and a driving control unit (20). The driving control unit (20): determines whether the motor (3) is in a light load state on the basis of an acceleration operation load, which is the load detected by the load detection unit during acceleration of the motor (3) in a normal driving mode, and determination reference data, which is the load detected by the load detection unit during acceleration of the motor in a data setting mode, which is different from the normal driving mode; controls the electric power conversion part (10) such that the driving speed of the motor (3) reaches a first speed when the motor (3) is in a light load state; and controls the electric power conversion part (10) such that the driving speed of the motor reaches a second speed that is lower than the first speed when the motor (3) is not in a light load state.
More Like This:
Inventors:
AMEMIYA YOSHIYUKI (JP)
Application Number:
PCT/JP2017/012098
Publication Date:
September 27, 2018
Filing Date:
March 24, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P27/06
Foreign References:
| JP2006333577A | 2006-12-07 | |||
| JPH09285185A | 1997-10-31 | |||
| JPH11246182A | 1999-09-14 | |||
| JP2015073385A | 2015-04-16 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
Download PDF: