DSP based fuzzy controller for series parallel resonant converter

Abstract

In this paper, digital signal processor (DSP) based fuzzy controller for series parallel resonant converter (SPRC) has been estimated, and the performance of the converter is analyzed by using state space model. The method to predict the steady-state and dynamic performance of the converter with load independent operation has been presented. The proposed converter has been analyzed with the closed-loop and open-loop conditions. The simple form of transfer function for SPRC is developed, and it is used to analyze the stability of the converter with closed-loop operation. The stability analysis of the converter is carried out by using frequency response plan. The fuzzy controller regulates the output voltage with change supply voltage and load disturbance. The controller performance of inductance capacitance inductance – T network (LCL-T) SPRC is compared with inductance inductance capacitance – T network (LLC-T) SPRC through simulation and experimental studies using TMS320F2407 processor.

Keywords

power electronics / DC-DC power converters / fuzzy control / system analysis and design

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg