Flux feedback control system
US6731083B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K20/121
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An electrical machine includes a rotor, a stator operably coupled with the rotor, at least one phase winding operably coupled with the rotor and stator and arranged to establish flux in a magnetic circuit in the machine, and a flux observer adapted to produce a signal indicative of flux-causing voltage across the at least one phase winding. A flux control system includes a flux controller adapted to receive a flux command as an input and to provide a phase coil energization signal as an output. The system also includes an electromagnetic system adapted to receive the phase coil energization signal, the electromagnetic system including at least one phase coil, and a flux observer adapted to provide a feedback signal to the flux controller. The feedback signal corresponds to flux in the electromagnetic system, and the phase coil energization signal provided by the flux controller energizes the electromagnetic system such that flux in the electromagnetic system follows the flux command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.