2010 Fiscal Year Final Research Report
Reseach on Low-Voltage Solid-State Circuit Breaker with Current-Limitation Function
| Project/Area Number |
20560266
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 |
YOKOMIZU Yasunobu Nagoya University, 工学研究科, 准教授 (50230652)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMURA Toshiro 名古屋大学, 大学院・工学研究科, 教授 (90126904)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 電気機器 / 大電流限流遮断 |
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| Research Abstract |
The present research deals with a low-voltage DC (Direct Current) solid-state circuit breaker utilizing the switching function of a power semi-conductor device. An IGBT (Insulated Gate Bipolar Transistor) was employed. In consideration of a dependence of a corrector-emitter resistance on a gate-emitter voltage, circuit configuration of circuit-breaker components was contrived to achieve limiting and breaking operations of the direct current. The model IGBT-type DC circuit breaker was constructed to perform the current-breaking experiment. The experimental results demonstrated that the model circuit-breaker successfully interrupts the current of the 10-80 A under the source voltage of DC 120 V. The results also verified that adjustment of the time constant τ_<GE> in the gate circuit allows control of the interrupting time t_<int>. A thyristor was also discussed to construct the low-voltage DC circuit breaker.
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Research Products
(9 results)
