Adaptively modulated multi-state inverter system and modulating method thereof
US11437928B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 8, 2021 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Aug 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2209/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides an adaptively modulated multi-state inverter system, comprising: a split capacitor, four bridge arms and an isolation switch group, on each of the four bridge arms a pair of complementary power switch groups is arranged; the isolation switch group comprises four fuses and six bidirectional thyristors. The output branches of the first bridge arm, the second bridge arm and the third bridge arm are respectively connected in series with a fuse to output a three-phase voltage, and at three-phase output voltage side two shared auxiliary branches are arranged, one auxiliary branch starts from the fourth bridge arm output branch on which a fuse is connected in series and is then connected to the output terminal of the three-phase voltage via three bidirectional thyristors. The other auxiliary branch starts from the DC side feed branch from the midpoint of the split capacitor, and is connected with the output terminal of the three-phase voltage via three bidirectional thyristors respectively. The invention also provides a modulating method of the multi-state inverter system. The use of the adaptive modulating technology enables the multi-state inverter to have…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.