Variable-frequency drive with regeneration capability
US7508147B2 · kind B2 · utility
28Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2006 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical device includes a plurality of single-phase power cells electrically connected to receive power from a source and deliver power to a load. The single-phase power cells include a first rank of regenerative power cells and a second rank of non-regenerative power cells. Each non-regenerative power cell may include an inverter bridge, a capacitor set electrically connected across terminals of the inverter bridge, and a three-phase bridge rectifier electrically connected across the terminals. The non-regenerative power cells may provide reactive power when the plurality of cells are used for braking of a motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.