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INTEGRAL CONTROLLER DESIGN BASED ON DISTURBANCE CANCELLATION VIA PARTIAL LTR
Tadashi Ishihara*, Hai-Jiao Guo** and Hiroshi Takeda***
* Graduate School of Information Sciences, Tohoku University, Japan
** Graduate School of Electrical Engineering, Tohoku University, Japan
*** Department of Electrical Engineering, Tohoku Gakuin University, Japan
For non-minimum phase plants, integral controller design based on disturbance cancellation is discussed. A new partial loop transfer recovery (LTR) technique is proposed. The target of the output feedback design is a minimum phase state feedback controller including a disturbance estimator. It is shown that the feedback property of the target can be recovered by a formal procedure using a Riccati equation with a fictitious disturbance term.
Keywords: Linear multivariable systems, Non-minimum phase systems, Integral controllers, Disturbance rejection, Observers, Kalman filters, Partial LTR technique,
Session slot T-Fr-A14: Robust Control Design/Area code 2a : Control Design
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