Flux offset compensation for a rotating electrical machine
US8653768B2 · kind B2 · utility
3Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/141
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is provided for compensating the flux drift caused by measurement and/or calculation errors when controlling a rotating electrical machine. The flux drift of the estimated flux vector may be compensated for by comparing the length of the flux vector with a reference flux magnitude which already has been determined for controlling the inverter. Depending on the comparison, the length of the estimated flux vector may be lengthened or shortened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.