Development of a novel three-dimensional three-phase variable inductor and application to reactive power compensator in electric power systems
| Project/Area Number |
16K14206
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 可変インダクタ / 無効電力補償 / 電圧安定化装置 / 電力系統 / 3相一体 / 立体構造 |
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| Outline of Final Research Achievements |
A variable inductor can be applied as a reactive power compensator in electric power systems, and has desirable features such as a simple and robust structure, low cost. In a previous work, a concentric-winding type three-phase variable inductor with a two-dimensional structure was proposed.
To further improved the performance, novel concentric-winding type three-phase variable inductor with a three-dimensional structure was proposed in this research. As a result, it was demonstrated that the leakage flux of the proposed three-dimensional variable inductor is reduced by more than 30%. Furthermore, a 6.6 kV-100 kVA three-dimensional variable inductor was designed and compared to its two-dimensional counterpart. It was proved that eddy current loss, which is induced within an oil-immersed self-cooled tank because of leakage flux, can be reduced to one-third of that of the two-dimensional variable inductor.
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Report
(3 results)
Research Products
(6 results)
