Zero-sequence current balancer with a real power injector for a three-phase power system
US11418034B1 · kind B1 · utility
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Key dates
| Filing date | Feb 10, 2022 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Feb 10, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A zero-sequence current balancer for a controlling zero-sequence current in a three-phase power system includes a cascade multilevel modular inverter (CMMI) coupled to the three-phase power system, wherein the CMMI has a plurality of modules, each module having a module capacitor, and a real power injector circuit provided between the three-phase power system and the CMMI, wherein the real power injector circuit is structured and configured to cause real power to injected into and/or absorbed from the CMMI to regulate a voltage of one or more of the module capacitors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.