Medium voltage power converter formed using low voltage drives
US7307361B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2006 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Nov 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F38/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A medium voltage power converter is provided that has an input transformer adapted to connect to a multi-phase power source, multiple low voltage drives each coupled to a respective set of secondary windings of the input transformer and operatively configured to provide a corresponding set of three-phase power outputs, and an output transformer. The output transformer has multiple input primary winding circuits each operatively coupled to the three-phase power outputs of a respective one of the drives, a plurality of output secondary winding circuits each disposed in relation to a respective input primary winding circuit, and a secondary winding connection arrangement in which each output secondary winding circuit has three secondary windings each of which is connected in series or in parallel with each other secondary winding of each other output secondary winding circuit to form a respective one of three phase-shifted outputs of the secondary winding connection arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.