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Ishikawa, Nobuyuki; Abe, Kenichi*
Denki Gakkai Rombunshi, C, 124(2), p.580 - 581, 2004/02
We have previously proposed the method for designing feedforward element of discrete-time 2DOF controller to realize a desired output response (reference response characteristics). In the method, the feedforward element is designed in the least square sense by solving a linear equation expressing the relation between the output sequence and the design parameter of feedforward element. Since this method is based on the controller parameterized by stable rational function, it is possible to realize desired reference response characteristics approximately even for the non-minimum phase plant by setting the rational function parameter to the polynomial. In this report, the design result by regularized least square solution is presented to suppress the manipulated variable response oscillation especially caused in the case for the non-minimum phase plant.
Ishikawa, Nobuyuki; Abe, Kenichi*
Denki Gakkai Rombunshi, C, 123(2), p.317 - 323, 2003/02
This paper presents a method of designing a feedforward element of 2DOF controller based on the approximation in time domain. Since we deal with the discrete-time 2DOF controller parameterized with rational stable function, the relation of the controller parameter and output sequence is expressed in the form of simple linear equation, through which the feedforward element of 2DOF controller can be designed. In addition, we also propose a controller parameter tuning method to enhance the reference response characteristics of control system by applying the iterative solution commonly utilized in numerical calculation. The results of the numerical simulation show the effectiveness of the proposed methods.
Ishikawa, Nobuyuki; Suzuki, Katsuo
Nihon Genshiryoku Gakkai-Shi, 41(9), p.937 - 945, 1999/00
Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)no abstracts in English
Ishikawa, Nobuyuki; Suzuki, Katsuo
JAERI-Research 96-048, 50 Pages, 1996/09
JAERI-Research-96-048.pdf:1.22MB
no abstracts in English
