Photovoltaic DC/AC inverter with cascaded H-bridge converters
US9685886B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2012 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a DC-AC inverter comprising a plurality of H-bridge converters, each being arranged to be integrated with a respective photovoltaic element and to be supplied with a DC voltage from the photovoltaic element, the H-bridge converters further being cascaded to produce a multilevel voltage output (Vout). The DC-AC inverter further comprises switch control circuitry connected to each one of the plurality of H-bridge converters to control switching thereof for producing the multilevel voltage output, and a central adaptation unit connected to the cascaded H-bridge converter for adapting the multilevel voltage output such that an AC grid voltage is output from the DC-AC inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.