Control of a permanent-magnet electric machine
US9184682B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 21, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jan 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/11
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling a permanent magnet synchronous machine including a stator and a rotor. The method includes determining an estimated position of the rotor, and determining a second in-phase voltage setpoint that, in alternation, is equal either to a first in-phase voltage setpoint or else to the first in-phase voltage setpoint plus a predetermined periodic signal. The determining an estimated position of the rotor includes determining a coupling term, determining a speed of rotation of the rotor as a function of the coupling term, and determining the estimated position of the rotor by integrating the speed of rotation of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.