Multigroup-multiphase rotary electrical machine control device and multigroup-multiphase rotary electrical machine drive device
US11152875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2018 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multigroup, multiphase rotary electric machine control device including: a control target calculator to calculate an initial current command value of each phase based on a torque command value; a correction coefficient calculator to calculate a per-group correction coefficient corresponding to each group from a spatial mode M (M is 0 or a positive integer) of an electromagnetic force caused by magnetic flux density variation with respect to a rotational periodicity at the time of rotation of the multigroup, multiphase rotary electric machine; and a current command value corrector to calculate a current command value of the each phase, which is corrected based on the initial current command value and the per-group correction coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.