Operating a three phase device using single phase power
US7609534B2 · kind B2 · utility
2Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2004 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Aug 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A powering arrangement (32, 34) for a device (30, 22) that normally operates on three phase power has the capability of operating based upon single phase power. One disclosed technique includes estimating a direct component based upon a measured voltage across the leads coupled with the single phase power supply. The quadrature component is estimated based upon a numerical derivative of the direct component. The direct component is also provided to a current regulator in a feed forward control manner, which minimizes error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.