| Project/Area Number |
22560438
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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 |
Control engineering
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| Research Institution | Chiba University |
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Principal Investigator |
LIU Kang-zhi 千葉大学, 大学院・工学研究科, 教授 (70240413)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 制御理論 / 正実化方法 / 正実な不確かさ / 強正実化 / 厳密な正実化 / ロバスト性能 / ロバスト制御 / 不確かさのゲイン / 不確かさの位相 / ロバスト条件 / ロバスト安定条件 / ロバスト性能条件 |
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| Research Abstract |
In the control of systems with model uncertainty, it is an extremely important issue how to enhance the control performance to the limit. In the conventional robust control theories, almost all only make use a part of the uncertainty information. For this reason, it is rather difficult to improve the control performance of the system.
To resolve this problem, this research established a new robust control theory, which utilizes not only the gain information, but also the phase information of the uncertainty. This theory is composed of a model for the set of plant which includes both the gain information and the phase information of the uncertainty, the robust stability condition, the robust sensitivity condition and the robust bandwidth condition. Further, it is proved both theoretically and via a benchmark system, that the new theory is able to enhance the robust performance significantly, as compared with conventional robust approaches. This theory has a potential of greatly improving the performance of robust control systemsin industrial applications.
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