Power inverter system and method of correcting supply voltage of the same
US7403404B2 · kind B2 · utility
30Cited by
8References
5Claims
0Family size
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Key dates
| Filing date | Nov 29, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a power inverter system, an inverter unit includes first to third single-phase inverters. In the power inverter system, a reference-frequency calculating unit calculates a reference frequency of each of the first to third single-phase inverters. A reference-voltage-calculating unit calculates a reference voltage of each of the single-phase inverters. In the power inverter system, a voltage-correcting unit adds a correction voltage to the reference voltage calculated by the reference voltage-calculating unit. The correction voltage has a frequency three times as high as the reference frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.