| Project/Area Number |
17K14698
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Control engineering/System engineering
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| Research Institution | Utsunomiya University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | パルス幅変調 / 非線形システム / 厳密線形化 / 追従制御 / 零配置 / ガルバノスキャナ / 周波数整形型終端状態制御 / 制御工学 |
|---|
| Outline of Final Research Achievements |
In various fields including power electronics and mechatronics, the pulse-width modulation (PWM) scheme has been used to control systems, and its advantages such as the reduction of costs have been widely accepted. However, high-speed high-precision motion control still keeps a distance from employing the PWM scheme, due to the nonlinearity that it possesses. This study has theoretically shown that the nonlinearity can be eliminated and hence control design becomes easier, by adjusting not only the width of the pulse rectangular wave but also its number and location in each control interval. Several control methods to increase control performance have also been proposed.
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| Academic Significance and Societal Importance of the Research Achievements |
提案した矩形パルスの数/幅/配置の操作は，時間的なスイッチングにより実現され，制御系に新たなアクチュエータを追加することなく操作量の自由度を増やすという戦略に特色があり，類似の研究報告はほとんどない．本研究では，自由度を与えた矩形パルスがどのように系に影響を与えるかという最も基本的で重要な性質のいくつかを解明しており，拡張されたPWM方式による制御系の研究において先駆的なものになり得ると考える．
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