Power Conditioning for a Small-Scale PV System with Charge-Balancing Integrated Micro-Inverter
| Autor: | Jung-Won Seo, Mohana Sundar Manoharan, Ashraf Ahmed, Joung-Hu Park |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Engineering
Flyback converter business.industry Photovoltaic system Topology (electrical circuits) Maximum power point tracking Solar micro-inverter Control and Systems Engineering Electronic engineering Grid-connected photovoltaic power system Inverter Grid-tie inverter Electrical and Electronic Engineering business |
| Zdroj: | Journal of Power Electronics. 15:1318-1328 |
| ISSN: | 1598-2092 |
| DOI: | 10.6113/jpe.2015.15.5.1318 |
| Popis: | The photovoltaic (PV) power conditioning system for small-scale applications has gained significant interest in the past few decades. However, the standalone mode of operation has been rarely approached. This paper presents a two-stage multi-level micro-inverter topology that considers the different operation modes. A multi-output flyback converter provides both the DCLink voltage balancing for the multi-level inverter side and maximum power point tracking control in grid connection mode in the PV stage. A modified H-bridge multi-level inverter topology is included for the AC output stage. The multi-level inverter lowers the total harmonic distortion and overall ratings of the power semiconductor switches. The proposed micro-inverter topology can help to decrease the size and cost of the PV system. Transient analysis and controller design of this micro-inverter have been proposed for stand-alone and grid-connected modes. Finally, the system performance was verified using a 120 W hardware prototype. |
| Databáze: | OpenAIRE |
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