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Comment on 'evolutionary design of static output feedback controller for Takagi-Sugeno fuzzy systems'

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2 Author(s)
W. -H. Ho ; Department of Medical Information Management, Kaohsiung Medical University, 100 Shi-Chuan 1st Road, Kaohsiung 807, Taiwan ; J. -H. Chou

In this note, a problem that must be paid attention to is highlighted here on using the sector non-linearity in the fuzzy model construction. The sector non-linearity approach can guarantee an exact fuzzy model construction. However, it needs carefully checking to prevent that the physical constraints are violated when the sector non-linearity approach is used. Based on the exact fuzzy model obtained from the sector non-linearity approach, an approach of designing static output feedback controller is presented in a recent study. However, it can be found that the designed control result is erroneous in that published study, owing to that a physical constraint is violated.

Published in:

IET Control Theory & Applications  (Volume:6 ,  Issue: 9 )