Experimental evaluation of a fuzzy controller using a parallel integrator structure for DC-DC converters

This paper presents the design, implementation and experimental evaluations of a fuzzy controller using a linear integrator for buck and boost converters. The fuzzy controllers are designed based on expert knowledge of the converters and simulated experimental results. The fuzzy controller for the boost converter uses two different fuzzy controller configurations during transient and steady state to achieve fast and stable response, while there is only one fuzzy controller configuration used for the buck converter. The fuzzy controllers were implemented on a TI TMS320F2812 DSP. Experimental results for both the buck and the boost converter are shown to verify that the fuzzy controllers are capable of providing fast response and good rejection to disturbances.