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Title: Development of a type-2 fuzzy proportional controller
Authors: Tan, W.W. 
Lai, J.
Issue Date: 2004
Source: Tan, W.W.,Lai, J. (2004). Development of a type-2 fuzzy proportional controller. IEEE International Conference on Fuzzy Systems 3 : 1305-1310. ScholarBank@NUS Repository.
Abstract: Studies have shown that PID controllers can be realized by Type-1 (conventional) fuzzy logic systems (FLSs). However, the input-output mapping of such fuzzy PID controllers are fixed. The control performance will, therefore, vary if the system parameters are uncertain. This paper aims at developing a type-2 FLS to control a process whose parameters are uncertain. A method for designing Type-2 triangular membership functions with the desired generalized centroid is first proposed. By using this type-2 fuzzy set to partition the output domain, a type-2 fuzzy proportional controller is obtained. It is shown that the type-2 fuzzy logic system is equivalent to a proportional controller that may assume a range of gains. Simulation results are presented to demonstrate that the performance of the proposed controller can be maintained even when the system parameters deviate from their nominal values.
Source Title: IEEE International Conference on Fuzzy Systems
ISBN: 0780383532
ISSN: 10987584
DOI: 10.1109/FUZZY.2004.1375357
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