Improved large-signal performance of paralleled DC-DC converterscurrent sharing

摘要

This paper introduces fuzzy logic control as a technique fornsignificantly improving the large-signal performance of paralleled DC-DCnpower converters with master-slave current sharing control. The controlndesign for such systems is challenged by its high modeling complexity,nand present approaches which come only from a small-signal perspectivenunable to give a good response for wide load and line transients. Thenfuzzy logic approach, by dealing naturally with nonlinearities, offers angood and parameter-insensitive transient response for the currentnsharing loop. The design methodology of the fuzzy compensator,nsimulation results, and a comparison with existing classical designs arenshown