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Online ISSN 1752-1424
Print ISSN 1752-1416

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IET Renewable Power Generation (RPG) brings together the topics of renewable energy technology, power generation and systems integration, with techno-economic issues. All renewable energy generation technologies are within the scope of the journal.

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Impact Factor: 3.605
5-year Impact Factor: 3.649
CiteScore: 4.6
SNIP: 1.452
SJR: 1.041

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2020 Research Highlights

Waqas Hassan

Waqas Hassan, Centre for Future Energy Networks (CFEN), Sydney


Design, analysis and experimental verification of a high voltage gain and high-efficiency DC–DC converter for photovoltaic applications

This paper presents a new power converter for photovoltaic applications that uses a combination of coupled inductors and switched capacitor techniques to achieve a high voltage gain. The main characteristic of the proposed converter is the low voltage stress across the switching devices for a wide range of duty-cycles. This feature is particularly essential to realising high efficiency and potentially high power density converters. Scalability is another key feature of this design. It is possible to increase the voltage gain by increasing the number of coupled-inductor switched capacitor cells. The research shows that, in comparison to other similar topologies presented in the literature, the proposed converter has the lowest combination of voltage stress across the devices and the capacitors that led to high efficiency. Simulations and experimental results demonstrate maximum power point tracking (MPPT) operation for maximum energy harvesting with the peak efficiency of 96.7% and the European efficiency of 96.3%. The main impact of the study is the improvement of power conversion systems for solar photovoltaic nanogrids, where the connection to the mains grid requires a significant voltage gain. The proposed converter can effectively achieve that with significantly reduced power losses. - Pietro Tricoli, Deputy Editor-in-Chief


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