K-cyclic Smith iterative method for model reduction of index-2 periodic control systems

2018 ◽  
Author(s):  
Ekram Hossain Khan ◽  
Mohammad-Sahadet Hossain ◽  
Sufi Galib Omar ◽  
Aniqa Tahsin ◽  
Mohammad Monir Uddin
Keyword(s):  
Iterative Method ◽  
Model Reduction ◽  
Control Systems ◽  
Periodic Control ◽  
Index 2

A Method of Model Reduction

1986 ◽  
Vol 108 (4) ◽  
pp. 368-371 ◽  
Author(s):  
Jium-Ming Lin ◽  
Kuang-Wei Han
Keyword(s):  
Transfer Function ◽  
Frequency Response ◽  
Model Reduction ◽  
Control Systems ◽  
Response Curve ◽  
Nonlinear Control Systems ◽  
Frequency Response Curve ◽  
Stability Boundaries ◽  
Parameter Variations ◽  
The Stability

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.

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