An improvement in the Routh-Padé approximation techniques
作者:
ANTONIO LEPSCHY,
UMBERTO VIARO,
期刊:
International Journal of Control
(Taylor Available online 1982)
卷期:
Volume 36,
issue 4
页码: 643-661
ISSN:0020-7179
年代: 1982
DOI:10.1080/00207178208932921
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A method for approximating high order stable systems via lower order stable models is presented. It is an improvement over previous Routh-Padé methods since the denominator polynomial of the model transfer function, even if based on the elements of a Routh array, contains two free parameters. A systematic procedure is illustrated for evaluating, besides the numerator coefficients, such denominator parameters in order to ensure a good fit, in the Padé sense, and a suitable stability margin.
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