Voltage stress mitigation in high-gain DC-DC converters via dual Z-source DC-DC converter
Marimuthu, Jawahar, Sesaiya, Arockiaraj, Ramachandran, Bhavani, Lourdusamy, Ramya Hyacinth
🤖 gxceed AI 要約
日本語
本論文は、太陽光発電や燃料電池などの再生可能エネルギーシステム向けに、新しいデュアルZソースDC-DCコンバータを提案する。従来の昇圧コンバータの課題である高電圧ストレスや低効率を解決し、デューティ比0.5以下で10倍の電圧利得と95%以上の効率を実現。シミュレーションと実験で有効性を検証した。
English
This paper proposes a novel dual Z-source DC-DC converter for renewable energy systems, achieving a voltage gain of 10x at duty cycles below 0.5 with over 95% efficiency, while reducing voltage stress on switches. Validated through simulations and hardware experiments.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、再生可能エネルギーの導入拡大に伴い、高効率なパワーコンディショナーの需要が高まっている。本コンバータは太陽光発電や燃料電池システムの効率向上に寄与し、日本のエネルギー転換目標に貢献する技術である。
In the global GX context
Globally, the push for renewable energy integration drives demand for efficient power converters. This topology offers higher efficiency and reliability, supporting grid decarbonization and distributed energy resources.
👥 読者別の含意
🔬研究者:Novel converter topology with validated performance metrics; useful for power electronics researchers working on renewable energy interfaces.
🏢実務担当者:Potential for implementation in solar inverters or fuel cell systems to improve efficiency and reduce component stress.
📄 Abstract（原文）
This paper presents a novel dual Z-source DC-DC converter designed to address the limitations of conventional high step-up converters used in renewable energy applications such as solar photovoltaic systems and fuel cells. Traditional boost and impedance-source converters often suffer from high voltage stress, low efficiency at higher power levels, and complex multistage configurations. To overcome these challenges, the proposed topology integrates a hybrid structure comprising symmetrical inductors and capacitors, enabling high voltage gain at reduced duty cycles while minimizing component stress. The converter is analytically modelled and evaluated under continuous conduction mode, and its performance is verified through MATLAB/Simulink simulations and experimental validation using a hardware prototype. The results demonstrate that the proposed converter achieves a voltage gain of up to 10× with a duty cycle below 0.5, while maintaining efficiency above 95% and significantly reducing voltage stress across switching devices. Compared to existing high step-up converters, the proposed design offers improved efficiency, reduced component count, and enhanced reliability. These features make it a promising solution for efficient and sustainable energy conversion in modern renewable energy systems.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/20635888first seen 2026-06-11 04:28:45 · last seen 2026-06-12 04:21:32
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