| Project/Area Number |
15K06135
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Control engineering/System engineering
|
|---|
| Research Institution | Nagaoka University of Technology |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
YAMADA Noboru 長岡技術科学大学, 工学部, 准教授 (90321976)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
|---|
| Keywords | 熱音響発電機 / 電力フィードバック / 進行波型 / ナイキストの安定判別 / 発振余裕の拡大 / 負荷のフィードバック制御 / 電力フィードバック回路の調整 / 電力フィードバックの効果 / リニアモータの効率 / 負荷の制御 / 熱音響コアの多段接続 / 振幅依存性の実測 / 定常発振時圧力の推定 / 管路長による位相調整 / 進行波圧力成分の測定 |
|---|
| Outline of Final Research Achievements |
An electricity-feedback traveling-wave thermoacousic electric generator has been first realized, which replaces the acoustic power feedback in the conventional looped-tube systems by the electricity feedback in the feedback circuit. To this end, the existing analysis method has been extended so that multistage cores are considered, and it has been demonstrated that the experimental and analysis results are consistent with each other, showing that the return power in the circuit increases as the resistance decreases, and the instability margin can be expanded by inserting a reactance in the electricity-feedback circuit.
It has also been demonstrated that the steady-state oscillation pressure amplitude can be maintained at a desired value against environmental (temperature) variations by a proposed feedback control law which dynamically changes the load registrant.
|
