Design and Hardware Implementation of Fuzzy Logic Controller for Boost Converter for Battery Charging Using dSPACE

Maintaining desired output voltage level is a critical feature required for a boost converter. The controller’s response is critical to analyze a converter’s performance and ability. This paper analyzes closed-loop control of the boost converter with PI and Fuzzy Logic Controllers using MATLAB Simulink and dSPACE 1104 platforms in a Hardware in-loop environment. To make it a test bench, hardware is developed using Proteus software, where the inductor, capacitor, and load (battery) terminals are available. The switching frequency used is 20 kHz. Tuning of the controller parameters is carefully carried out to achieve the best performance possible. The response obtained for a step change in the input is studied with an individual controller in action. The error between actual and desired output voltages is observed during the transient and steady-state conditions. It is found that the Fuzzy logic controller delivers the fastest response among them.