Design and Implementation of a Fuzzy Control System Applied to a 6x4 SRG

This paper presents an experimental methodology to control the voltage generated from a Switched Reluctance Generator (SRG) using Fuzzy Logic. The generated voltage is controlled by varying the demagnetization angle (θ
off
) maintaining fixed the magnetization angle (θ
on
). The developed strategy operates on the upper switches of the asymmetric half-bridge converter. The converter topology is used in conjunction with an intermediate freewheeling stage between the steps of magnetization and demagnetization of the phases. The control algorithm was developed in a DSP/FPGA with high processing capacity using LabVIEW graphical platform. Results in open loop and closed loop are presented subjecting the switched reluctance generator to variable speeds and load application. The efficacy of the technique is proven from the experimental results presented.