Enhanced floating reference frame controller for sensorless control of synchronous machines
US7193383B2 · kind B2 · utility
22Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jul 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system for controlling a power converter coupled to a polyphase power line. The method includes measuring at least two motor phase currents, obtaining a floating reference frame for the current Park vector, adjusting the reference frame based on an estimated rotor speed, and controlling the power converter via the floating reference frame to reinitiate power to a motor while a rotor is still moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.