Sampled-data models for affine nonlinear systems using a fractional-order hold and their zero dynamics |
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Authors: | Masatoshi Nishi Mitsuaki Ishitobi |
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Affiliation: | 1. Department of Mechanical Systems Engineering, Kumamoto University, Kumamoto, 860-8555, Japan
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Abstract: | One of the approaches to sampled-data controller design for nonlinear continuous-time systems consists of obtaining an appropriate
model and then proceeding to design a controller for the model. Hence, it is important to derive a good approximate sampled-data
model because the exact sampled-data model for nonlinear systems is often unavailable to the controller designers. Recently,
Yuz and Goodwin proposed a more accurate model than the simple Euler model in the case of a zero-order hold. This article
derives a sampled-data model for nonlinear systems using a fractional-order hold, and analyzes the zero dynamics of the sampled-data
model. |
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Keywords: | |
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