Electric power conversion device
US9564808B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 2, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power conversion device includes a plurality of cell converters connected in cascade and including main circuits, drive circuits, and self-feeding devices for supplying power to the drive circuits by being supplied with power from the main circuits. The drive circuit is supplied with power via a first feed line from the self-feeding device in the corresponding cell converter, and supplied with power from the self-feeding device in another cell converter via a second feed line on which an insulation input/output circuit is provided. When the self-feeding device is abnormal, the drive circuit is supplied with power from the self-feeding device in the other cell converter, whereby the electric power conversion device continuously provides a desired output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.