Start-up and restart of interior permanent magnet machines
US7211984B2 · kind B2 · utility
28Cited by
36References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Nov 9, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2200/041
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of starting a permanent magnet machine. A machine stator voltage in a stationary reference frame is sensed. An initial speed of a rotor of the machine is estimated based on the sensed voltage, and state variables of control algorithms are initialized based on the estimated initial speed. This method can provide smooth startup and/or restart at any speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.