A Method of Model Reduction

[+] Author and Article Information
Jium-Ming Lin

Institute of Electronics, National Chiao-Tung University, Hsin-Chu, Taiwan, R.O.C.

Kuang-Wei Han

Chung Shan Institute of Science and Technology, Lung-Tan, Taiwan, R.O.C.

J. Dyn. Sys., Meas., Control 108(4), 368-371 (Dec 01, 1986) (4 pages) doi:10.1115/1.3143809 History: Received August 09, 1984; Online July 21, 2009


In this brief note, the effects of model reduction on the stability boundaries of control systems with parameter variations, and the limit-cycle characteristics of nonlinear control systems are investigated. In order to reduce these effects, a method of model reduction is used which can approximate the original transfer function at S=0, S=∞, and also match some selected points on the frequency response curve of the original transfer function. Examples are given, and comparisons with the methods given in current literature are made.

Copyright © 1986 by ASME
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