2020 Fiscal Year Final Research Report
Novel High Reliability DC/DC Modular Multilevel Converter as a Power Router for Next Generation Medium Voltage DC Power Network
| Project/Area Number |
19K14963
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 21010:Power engineering-related
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| Research Institution | Kyoto Institute of Technology |
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Principal Investigator |
Huang Pin-Yu 京都工芸繊維大学, 電気電子工学系, 助教 (70835313)
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | DC-DC converter / MVDC / Power router / Energy management / Ripple Cancel / Embedded filter / Multilevel converter / DAB |
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| Outline of Final Research Achievements |
Nowadays, it could discover that there are a lot of power conversion techniques around the world. According to the U.S. Energy Information Administration’s latest International Energy Outlook 2017 projects that the world energy consumption will grow by 28% between 2015 and 2040. The reduction of energy consumption become a significant task in power electronics.
Future medium voltage DC microgrid is considered as the high efficiency and reliability power distribution system. In this research, the bidirectional converters were proposed as a power router to connect each DC microgrid. The prototype of converters features high efficiency which overall 94%, nearly zero voltage/current ripple on DC-link capacitors, and build-in EMI noise filter. In addition, the high voltage conversion can be achieved by the multilevel configuration with low voltage stress semiconductors. Accordingly, the proposed converters can achieve high power density and reliability in future MVDC microgrid.
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| Free Research Field |
Power electronics
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| Academic Significance and Societal Importance of the Research Achievements |
A high voltage conversion and reliability converter is required for future MVDC microgrid. The proposed converter can use low voltage switches and number of modules to achieve flexible high voltage conversion. In addition, the ripple cancel function improved the lifetime of capacitors in converter.
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