Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM
US8228013B2 · kind B2 · utility
16Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Sep 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for determining electrical parameters for commissioning a sensor-less permanent magnet synchronous machine uses knowledge of the rotor position to apply balanced pulses along the rotor magnet axis and perpendicular to the rotor magnet axis allowing measurement of q- and d-inductance at multiple current levels without substantial rotor movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.