TY - JOUR
T1 - Modelling and simulation of the defuzzification stage of a type-2 fuzzy controller using VHDL code
AU - Sepúlveda, Roberto
AU - Montiel, Oscar
AU - Castillo, Oscar
AU - Melin, Patricia
PY - 2011
Y1 - 2011
N2 - The design, and software development for coding a high-speed defuzzification stage for a type-2 fuzzy inference system (FIS) based on the average method of two type-1 FIS, and functionality tests are described in this paper. The proposed method is highly efficient in processing time as its development uses parallelism at data level and pipelining, designed specifically to be implemented in fieldprogrammable gate array (FPGA) devices. A comparative study of the results of a speed control of a gear DC motor using this proposal and the Wu-Mendel method, in an ideal nonlinear control system, and in a system with uncertain measures that were emulated by the application of different noise levels, is also presented.
AB - The design, and software development for coding a high-speed defuzzification stage for a type-2 fuzzy inference system (FIS) based on the average method of two type-1 FIS, and functionality tests are described in this paper. The proposed method is highly efficient in processing time as its development uses parallelism at data level and pipelining, designed specifically to be implemented in fieldprogrammable gate array (FPGA) devices. A comparative study of the results of a speed control of a gear DC motor using this proposal and the Wu-Mendel method, in an ideal nonlinear control system, and in a system with uncertain measures that were emulated by the application of different noise levels, is also presented.
KW - High-speed type-2 fuzzy controller
KW - PWM type-2 fuzzy controller
KW - Type-2 fuzzy logic
KW - VHDL type-2 defuzzification
UR - http://www.scopus.com/inward/record.url?scp=79957856821&partnerID=8YFLogxK
U2 - 10.2316/Journal.201.2011.1.201-2202
DO - 10.2316/Journal.201.2011.1.201-2202
M3 - Artículo
SN - 1480-1752
VL - 39
SP - 33
EP - 40
JO - Control and Intelligent Systems
JF - Control and Intelligent Systems
IS - 1
ER -