Power conversion device
US9564827B2 · kind B2 · utility
3Cited by
0References
16Claims
0Family size
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Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Feb 7, 2017 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4835
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power conversion device includes: a DC current calculation unit for calculating a circulating current component for each phase which circulates between the phases through first arms and/or second arms not via an AC power supply and a DC power supply; and a circulating current control unit for controlling the circulating current component for each phase so as to follow a predetermined circulating current command value, thereby reliably suppressing variation in voltages of DC capacitors of unit cells among the phases even in such a case where an impedance is additionally inserted in a DC circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.