Control device for an AC rotating electric machine
US11183964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2020 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Feb 19, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a control device for an AC rotating electric machine, which includes: a temperature detection unit configured to detect a temperature of a protection unit provided in an object to be protected when a current is supplied from a power conversion circuit including a switching element to the AC rotating electric machine and output, as a detected temperature, one of the temperature and a temperature of the object to be protected that is estimated from the temperature; a temperature compensation unit configured to calculate, through use of the detected temperature output from the temperature detection unit, a compensated temperature equal to or higher than the detected temperature; and a torque limiting unit configured to limit, through use of the compensated temperature calculated by the temperature compensation unit, a torque command value input thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.