Novel High Reliability DC/DC Modular Multilevel Converter as a Power Router for Next Generation Medium Voltage DC Power Network
| Project/Area Number |
19K14963
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 21010:Power engineering-related
|
|---|
| Research Institution | Kyoto Institute of Technology |
|---|
Principal Investigator |
Huang Pin-Yu 京都工芸繊維大学, 電気電子工学系, 助教 (70835313)
|
|---|
| Project Period (FY) |
2019-04-01 – 2021-03-31
|
| Project Status |
Completed (Fiscal Year 2020)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
|
|---|
| Keywords | DC-DC converter / MVDC / Power router / Energy management / Ripple Cancel / Embedded filter / Multilevel converter / DAB / Multilevel Converter / Medium voltage / Solid state transformer / Reliability / DC microgrid / DAB/TAB / MVDC microgrid / Ripple cancel |
|---|
| Outline of Research at the Start |
Future DC power network is considered as different voltage level microgrids implementation. Medium voltage DC is expected to be used in long-distance power transmission and high power applications. Japan frequently suffers from the earthquake and typhoon. The meshed power network could urgently supply energy from local battery storage, renewable energy, and electric vehicles through the alternative transmission paths. Accordingly, this research proposed a novel DC/DC modular multilevel converter as a power router for the Medium voltage DC power network.
|
| 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.
|
| 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.
|
Report
(3 results)
Research Products
(9 results)
