Output Voltage Control Analysis of Three-Level Boost DC-DC Converters

This paper proposes a control strategy of three-level boost (TLB) converter. This strategy is based on artificial intelligence. A fuzzy logic controller (FLC) is designed using Mamdani method in order to achieve dc bus voltage control. To show the fuzzy logic controller (FLC) efficiency, it is compared to Proportional integral controller (PIC). In addition, to assure the output capacitor balance voltage a classical PIC is added. A simulation result, in the Matlab/Simulink environment, shows the efficiency and performance of proposed control strategy.