2021 Fiscal Year Final Research Report
Development of high-power density three-phase ac-dc converter based on single-stage ac frequency conversion solid stage transformer
| Project/Area Number |
18H01428
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 21010:Power engineering-related
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| Research Institution | Kobe University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Keywords | パワーエレクトロニクス / 単相AC-DC変換 / シングルステージ変換 / 力率改善 |
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| Outline of Final Research Achievements |
The research subject deals with a single-stage high frequency-link single-phase ac-dc converter. Based on the three-phase topologies that was developed in the former steps of research period, the boost ac chopper and full-bridge inverter integrated ac-dc converter is explored for a single-phase utility frequency to high frequency converter, featuring the single-stage power conversion via the non-smoothed dc-link and high frequency transformer as well as the power factor correction in continuous conduction mode (CCM) in the ac line current. Effectiveness of the single-phase ac-dc converter is investigated by simulation analysis, whereby the 60Hz-50kHz ac power conversion is confirmed under the principle of single-stage operation and PFC in CCM attains with accommodation for the world-wide standard. The experimental verification will be a future work of the subject.
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| Free Research Field |
電力工学
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| Academic Significance and Societal Importance of the Research Achievements |
電気電子機器の心臓部と言える電源の低損失化や低ノイズ化など高性能化は，カーボンニュートラル実現の観点から極めて重要な技術課題である。補研究課題は，商用交流電源にインターフェースする電力変換器として，省部品化や平滑フィルタの小型軽量化などを実現するための新しい技術である。構造的特徴を生かし，小容量から大容量まで幅広く適用出来る電源回路であり，産業界にとどまらず広く社会の省エネルギーの促進に資する技術である。
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