Power transmission method and power transmission apparatus
US8553432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Sep 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for controlling an apparatus transmitting power between two electricity networks or between an electricity network and a polyphase electric machine), and including low-voltage power cells (C), which include a single-phase input/output connection (IN/OUT). The power cells are arranged into groups (G1-GN, GP1-GPN1, GS1-GSN2, G1′″-GN′″) such that at least one power cell per each phase of the electricity network or of the electric machine belongs to each group, and the input terminals (IN) of all the power cells belonging to the same group are connected to a common transformer, the transformer including its own separate winding that is galvanically isolated. The controllable power semiconductor switches connected to the input connectors (IN) of all the power cells supplying power to the same transformer are controlled cophasally with a 50% pulse ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.