Implicit restart scheme for large scale Krylov subspace model reduction method

2005 ◽  
Author(s):  
N. Ahmed ◽  
M.M. Awais
Keyword(s):  
Model Reduction ◽  
Large Scale ◽  
Krylov Subspace ◽  
Reduction Method ◽  
Implicit Restart

scholarly journals Discussion: “Model Reduction of Large-Scale Discrete Plants With Specified Frequency Domain Balanced Structure” (Zadegan, A., and Zilouchian, A., 2005, ASME J. Dyn. Syst. Meas., Control, 127, pp. 486–498)

2009 ◽  
Vol 131 (6) ◽  
Author(s):  
Hamid Reza Shaker ◽  
Rafael Wisniewski
Keyword(s):  
Model Reduction ◽  
Frequency Domain ◽  
Large Scale ◽  
Reduction Method ◽  
Order Reduction ◽  
Balanced Structure ◽  
Order Reduction Method

This work presents a commentary of the article published by A. Zadegan and A. Zilouchian (2005, ASME J. Dyn. Syst. Meas., Control, 127, pp. 486–498). We show their order reduction method is not always true and may lead to inaccurate results and is therefore erroneous. A framework for solving the problem is also suggested.

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