2017 Fiscal Year Final Research Report
Development of a novel three-dimensional three-phase variable inductor and application to reactive power compensator in electric power systems
| Project/Area Number |
16K14206
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Power engineering/Power conversion/Electric machinery
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2016-04-01 – 2018-03-31
|
| 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 |
|---|
| 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.
|
| Free Research Field |
電気機器工学
|
