Mixed method of model reduction for linear multivariable systems
作者:
C. M. LIAW,
期刊:
International Journal of Systems Science
(Taylor Available online 1989)
卷期:
Volume 20,
issue 11
页码: 2029-2041
ISSN:0020-7721
年代: 1989
DOI:10.1080/00207728908910285
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A mixed method of model reduction for linear multivariable systems is proposed. The least common denominator of the elements in the reduced transfer matrix model is constructed by preserving the dynamic modes with dominant energy contributions, and the parameters of the numerators are found using the continued-fraction method. In addition, a reduced model with state-space form, having the same order as those of the reduced transfer matrix, is also found. The reduced model is always stable if the original system is stable. Moreover, the reduced model gives rather good approximations in both the transient and steady-slate responses of the original system.
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