Title :
Adaptive hierarchical fuzzy controller
Author :
Raju, G.V.S. ; Zhou, Jun
Author_Institution :
Div. of Eng., Texas Univ., San Antonio, TX, USA
Abstract :
A methodology for designing adaptive hierarchical fuzzy controllers is presented. In order to evaluate this concept, several suitable performance indices were developed and converted to linguistic fuzzy variables. Based on those variables, a supervisory fuzzy rule set was constructed and used to change the parameters of a hierarchical fuzzy controller to accommodate the variations of system parameters. The proposed algorithm was used in feedwater flow control to a steam generator. Simulation studies are presented that illustrate the effectiveness of the approach
Keywords :
adaptive control; boilers; fuzzy control; fuzzy logic; hierarchical systems; performance index; adaptive hierarchical fuzzy controllers; feedwater flow control; linguistic fuzzy variables; performance indices; steam generator; supervisory fuzzy rule set; Adaptive control; Automatic generation control; Control systems; Design methodology; Fuzzy control; Fuzzy logic; Fuzzy sets; Fuzzy systems; Programmable control; System performance;
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on
