Adaptive position sensing method and apparatus for synchronous motor generator system
US7184927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | May 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An adaptive, sensorless position sensing apparatus (250) derives rotor position of a synchronous machine (200). The apparatus (250) comprises a first rotor position deriving unit (300) for generating first rotor position values by applying a first sensorless rotor position calculation technique, which emulates a resolver; a second rotor position deriving unit (400) for generating second rotor position values by applying a second sensorless rotor position calculation technique; and a rotor position result output unit (450) for outputting rotor position results over a range of rotor speeds as a function of the first rotor position values, the second rotor position values, and rotor speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.