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An efficient design method to improve the control performance of rough controller which integrates the Bang-Bang control rules with PID control rules is presented in this paper. The two parts of rules extracted from Bang-Bang controller and PID controller by rough set, respectively, are combined to a uniform decision making system under a certain selection mechanism. This rough controller reserved all the advances of Bang-Bang control and PID control enables to deal with different magnitudes of set point variation and large disturbance. Simulations show the effectiveness of this method.
Fuzzy Systems and Knowledge Discovery, 2007. FSKD 2007. Fourth International Conference on (Volume:2 )
Date of Conference: 24-27 Aug. 2007