Single-phase seven-level inverter
US12107515B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Apr 23, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/5395
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An exemplary system includes an inverter coupled to a DC source, eight power switches and three DC-link capacitors that synthesize seven output voltage levels. In one example the inverter includes a four-level active neutral pointed clamped inverter (4L-ANCP) that includes six power switches of the eight power switches is operated at a switching frequency with a first voltage stress level, and a half-bridge that includes the other two of the eight power switches is coupled to the 4L-ANCP and operated at a fundamental frequency with a second voltage stress, the second voltage stress being higher than the first voltage stress level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.