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Reduced order modelling of linear multivariable systems using an error minimization technique

✍ Scribed by S. Mukherjee; R.N. Mishra

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 425 KB
Volume: 325
Category: Article
ISSN: 0016-0032
DOI: 10.1016/0016-0032(88)90085-3

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✦ Synopsis

The method of' reducing the order of's linear multir~ariablr system is discussrd. The dominant poles of the original system are retainc~d,.f~llor~c?d by matching the steady state parts of the unit step responses qf' the original and reduced systems. Each element of' the tran.sfkr Junction matri.x (?f' the originul system is considered separately. E coqjficients of the numerator pol_vnomials qf the elements qf the reduced order .system transfer .fimction matri.x are then determined by minimizing the Integral Square Error (ISE) between the transient parts of the unit step reponses. An example illustrates the method and the result is compared to another method.

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