A subsystem design approach to continuous-time performance of decentralized multirate sampled-data systems |
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Authors: | HIROSHI ITO HIROMITSU OHMORI AKIRA SANO |
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Affiliation: | Department of Electrical Engineering , Keio University , 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223, Japan |
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Abstract: | A decentralized controller design is presented for multirate sampled-data systems, where stability and input-output performance are considered in terms of continuous-time signals. The design procedure consists of analysis for the overall system and controller synthesis for individual subsystems. For the subsystem designs, a unique technique of removing lifting operation which is used in the analysis is proposed. Robust performance and robust stability in terms of continuous-time signals can be achieved by using the proposed design. A numerical example shows that the design method results in satisfactory controllers which guarantee closed-loop stability and performance in continuous time. |
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