Motor driving device, air conditioning device including same, and control method for motor driving device
US10523147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Dec 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aspect of the disclosed invention calculates a value of an inductance of a synchronous motor whose characteristic is unclear while suppressing a failure of the synchronous motor. A motor driving device according to an embodiment of the disclosed invention comprises: a motor; an inverter for supplying an alternating voltage to the motor; a current meter for measuring an introduced current flowing through the motor on the basis of the alternating voltage; and a control unit for controlling the inverter to change the size of the alternating voltage in stages, and calculating an inductance of the motor on the basis of the introduced current measured by the current meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.