Simulation Study on Optimization of Fuzzy Control Using MATLAB/NCD

The simulation model of a typical second -order plant' two dimension fuzzy control system was setup using SIMULINK and fuzzy control blockset in MATLAB. The control rule was expressed in formula .We got the initial value of quantised factor and proportional factor by adjusting manually, then optimize these factors by using NCD blockset to get the optimized value of these factors. By adjusting the adjustive factor to minimize the overshoot of output, we can get the best adjustive factor. Through these steps, we got four best factors. This method for optimizing fuzzy system is easy to be grasped by technicians, hence has important value.