| Project/Area Number |
02650301
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
計測・制御工学
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| Research Institution | Toyohashi University of Technology |
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Principal Investigator |
SAITO Osami Toyohashi University of Technology Professor, 工学部, 教授 (50005526)
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| Co-Investigator(Kenkyū-buntansha) |
ABE Kenichi Toyohashi University of Technology Professor, 工学部, 教授 (70005403)
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1991: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1990: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Computer algebra / Polynomial ring / nD system / Formula manipulation / Matrix equation / Practical stability / Compensator / CAD / 2Dシステム / 2ーDシステム |
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| Research Abstract |
The aim of this study is to construct the new control system theory based on the computer algebra. In 1990, the main work was to research the 2-D system theory and the following results were obtained.
1) Coprimeness of 2-D transferfunction and stability of 2-D system : The coprimeness is quite difference from the one of 1-D transferfunction. Then the concepts such as zero-coprimeness and factor coprimeness should be considered. In addition, minor coprimeness was necessary in the case of 2-d transferfunction matrix. Here the new concept - OMEGA -coprimeness was defined and consequently both coprimeness and stability condition for 2-D system could be discussed uniformly.
2) Synthesis algorithms of stabilizable compensator for 2-D system : The algorithm is reduced to solving the bilateral matrix equation AX+BY=C. In this work the software package for the matrix equation has been developed based on REDUCE and it was clarified that there existed the deep relationship between the 2-D system and the computer algebra.
In 1991, based on the above results, 2-D system theories were extended to the general n-D system theories and following results were obtained.
3) Stability of n-D system : Recently the new stability concept for n-D system, -practical stability- was introduced. Here the synthesis algorithms of the practical stabilizable compensator were established. And the Computer Aided Design system was also developed.
4) Dynamical simulation of n-D system : The dynamical response of n-D ststem is very complex. Then the user friendly simulator for n-D system was developed by using computer graphics and REDUCE.
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