مشخصات پژوهش

With the increasing use of power electronic converters, the reliability studies of theseconverters are essential. The most important factor in increasing the reliability of powerconverters is their structures. In this paper the reliability evaluation of a DC–DC con-verter with various connections including single-phase, interleaved, and parallel-input andseries-output (PISO) topologies is presented. In the first view, it seems that the interleavetopology has high reliability, but considering the more presented detailed indexes, it is iden-tified that the PISO structure has a higher reliability than the interleave structure. In thispaper for better evaluation, the various topologies are considered which operate at full ratedpower and half power. To calculate the reliability of the converters the important param-eters such as the thermal and electrical stresses of elements are considered. The Markovmodel is used to evaluate the reliability. In order to verify the presented studies and analysis,the DC–DC converters with single-phase, interleaved, and PISO have been implemented.The experimental results show that the PISO topology has higher reliability