Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/app12062767
Keywords
unmanned aerial vehicles; hybrid energy storage; multiport DC-DC converter
Categories
Funding
- ESTEEM project - Clean Sky 2 Joint Undertaking under the European Union's Horizon 2020 research and innovation program [755485]
- Ministry of Higher Education, Egypt by the Cultural Affairs and Missions Sector
- H2020 Societal Challenges Programme [755485] Funding Source: H2020 Societal Challenges Programme
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This paper proposes an integrated multiport non-isolated DC-DC converter system for integrating battery-supercapacitor hybrid energy storage with photovoltaics. The system allows a size reduction of the supercapacitor and inductor by maximizing the utilization of the rated energy capacity and using a phase-shifted carrier modulation technique.
This paper proposes an integrated multiport non-isolated DC-DC converter system for integrating battery-supercapacitor hybrid energy storage with photovoltaics for solar-powered unmanned aerial vehicles applications. Compared to the traditional topologies used, the proposed converter allows a size reduction of at least 20% of the supercapacitor by maximizing the utilization of the rated energy capacity. In addition, by proposing to use a phase-shifted carrier modulation technique, the inductors' current ripple is reduced, which enables a further reduction in the inductor size. These improvements in capability and performance of the proposed topology are experimentally validated on a 500 W PV/battery-supercapacitor integrated power system prototype.
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