Criterion for conditional stability of Ml MO integral control |
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| Authors: | KAZUO YAMANAKA NAOYA KAWASAKI |
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| Affiliation: | 1. Department of Precision Engineering , Ibaraki University , Nakanarusawa 4-12-1, Hitachi, 316, Japan;2. Department of Education , Kochi University , Akebono-cho 2-5-1, Kochi, 780, Japan |
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| Abstract: | A simple criterion to detect the conditional stability of MI MO systems with integral control is described, It is shown that a closed-loop system with a loop-transfer matrix H(s)/s is made unstable by undesirable feedback-gain reduction if any of the principal minors of [si - H(0)] have zeros in the left half-plane. |
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