Hybrid closed loop speed control using open look position for electrical machines controls
US8901869B2 · kind B2 · utility
2Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Feb 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/0805
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling speed of an electric machine having a rotor and a stator is provided. The method may comprise the steps of monitoring a desired speed and a measured speed of the rotor, generating a torque command based on the desired speed and the measured speed, and controlling phase current to the stator based on a hybrid closed loop analysis of the torque command, the measured speed and an estimated position of the rotor. The estimated rotor position may be derived at least partially from the desired speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.