| Project/Area Number |
15K05929
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Utsunomiya University |
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Principal Investigator |
Funato Hirohito 宇都宮大学, 工学(系)研究科(研究院), 教授 (60272217)
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| Co-Investigator(Kenkyū-buntansha) |
春名 順之介 宇都宮大学, 工学(系)研究科(研究院), 助教 (40609369)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 直流マイクログリッド / droop制御 / 高昇圧比 / 負荷遮断 / マイクログリッド / 直流給電 / スイッチトインダクタ |
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| Outline of Final Research Achievements |
The purpose of this project is development of a new dc microgrid system. A concept of this system is “to use as much as possible in usual” and “to maintain minimum function in emergency”. In the proposed system, dc distribution system is employed because a lot of distributed generation system is dc source. In order to realize this concept, automatic shutdown and recover function of loads is proposed. In this concept, low-priority load is automatically disconnected from grid when power source is not enough, while disconnected load is automatically connected when power source is recovered. Four types of new step-up dc-dc converters suitable for photovoltaic generation and battery storage system are proposed with new maximum power point tracking control. In addition, three types of dc-ac converters suitable for interconnection between the proposed grid and commercial grid are proposed in order to realize more efficient microgrid.
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