Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter
US9425705B2 · kind B2 · utility
3Cited by
92References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2015 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Mar 1, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M5/458
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes one or more normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.