2021 Fiscal Year Final Research Report
Innovative design and operation methods of electric railway vehicle traction systems for peak power shaving and increased regenerative power
| Project/Area Number |
19H02133
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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 | Waseda University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
古関 隆章 東京大学, 大学院工学系研究科(工学部), 教授 (20211899)
宮武 昌史 上智大学, 理工学部, 教授 (30318216)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 電気鉄道 / 省エネルギー / 主回路制御 / 誘導機特性 |
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| Outline of Final Research Achievements |
In this study, it revealed that the introduction of a constant power region in the speed vs. regenerative braking force characteristics can improve the regenerative braking force characteristics at high speeds and save energy. The first is that the introduction of a constant output region in the speed-regenerative brake force characteristics improves the regenerative brake force characteristics at high speeds and saves energy. In addition, it was found that peak power can be cut in the medium-speed range, and regenerative power can be transmitted to a distant power train. Secondly, the design guideline of the induction machine to realize the above was clarified, and thirdly, the improvement of operating characteristics and energy saving effect by the regenerative brake notch were clarified when the regenerative brake force was improved. Thirdly, the effect of the regenerative brake notch on the operating characteristics and energy saving was clarified.
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| Free Research Field |
パワーエレクトロニクス，電気機器
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| Academic Significance and Societal Importance of the Research Achievements |
鉄道は元々が省エネルギーでCO2排出量も少ないが，カーボンニュートラルが大きな社会課題となる中，一層の省エネルギー化が求められている。鉄道車両の低いエネルギー消費の源泉の1つが運動エネルギーを再利用する回生ブレーキの活用にる。本研究では回生ブレーキ特性の改善の余地を明らかにし，その性能を向上することで，鉄道のカーボンニュートラルへの貢献度をより一層高める点で社会的意義がある。また学術的には近年のワイドバンドギャップパワー半導体の高耐圧化や電動機の制御性向上を背景に，鉄道車両駆動における回生ブレーキ特性設計を革新する点で意義深い。
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