Low-Voltage DC Circuit Breaker Constructed of Power Semi-Conductor: Toward High Current Breaking Ability
| Project/Area Number |
26420229
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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 | Nagoya University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
松村 年郎 名古屋大学, 工学研究科, 教授 (90126904)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 大電流 / 直流 / 遮断器 / 限流遮断 / パワー半導体 / 直流遮断 / パワー半導体素子 / 限流 |
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| Outline of Final Research Achievements |
A model low-voltage DC circuit breaker has been constructed to apply an insulated gate bipolar transistor to the direct-current interruption. The model circuit breaker functions limitation and interruption of the DC through a decrease in a gate-emitter voltage with an elapsed time at a certain time-constant. This research was performed to make the comprehensive elucidation on the current breaking properties.
With regard to a current breaking property, the model circuit breaker designed with the time constant of 5 and 1 ms proved to accomplish the current interruption even for 300 A and even for the circuit inductance of 4.2 mH. Deriving an ohmic heat emerging during a current-limiting period allowed to find out the successful-interruption criterion that the ohmic heat energy is lower than 25 J or the current limiting time is longer than about 5 ms.
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Report
(4 results)
Research Products
(14 results)
