Motor control device
US11329592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2021 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Mar 1, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control device includes an optimal voltage calculation part configured to calculate an input voltage that is a lowest total of electric power losses generated by an inverter, a motor and a converter, a lowest voltage calculation part configured to calculate a lowest value of the input voltage required at a motor operating point, and a target value setting part configured to set any one of the optimal input voltage and the lowest input voltage as the target input voltage, and the target value setting part sets the lowest input voltage lower than the optimal input voltage to the target value when the element temperature of the inverter and the converter is equal to or greater than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.