Method for operating a power converter, power converter for a permanently excited electric machine, vehicle and computer program product
US11258396B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | May 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/67
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method for operating a power converter for a permanently excited electric machine, wherein temperature information, which describes a temperature of at least one permanent magnet of the electric machine, is determined by means of an observer as a function of operating parameters of the electric machine, and the power converter is controlled as a function of the temperature information, wherein a computing device, which handles processes in time slices, carries out a first process in a first time slice for detecting parameter values for determining the operating parameters and carries out a second process, which determines the temperature information, in a second time slice, which is retrieved less frequently than the first time slice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.