Converter topology and methods for interfacing an electrical machine to electrical power grid
US7532490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2006 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Feb 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/297
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power converter for coupling an electrical machine to an electrical grid includes a machine side converter and a grid side converter, each, side having a plurality of corresponding stages for converting a three-phase electrical signal of the electrical machine to a three-phase electrical signal of the electrical grid. The machine side converter includes a plurality of single-phase bridges coupled in series. The grid side converter includes a plurality of three-phase bridges. Each three-phase bridge corresponds to one of the single-phase bridges of the machine side converter. Each three-phase bridge is coupled to the primary windings of a corresponding transformer. The secondary windings of each corresponding transformer is phase-shifted from its primary windings and is coupled to secondary windings of another respective transformer, thus providing for coupling of the three-phase bridges in a series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.