Reliability assessment of two-phase interleaved boost converter

The spurt in the area of renewable energy has led to the research of suitable power electronic converters. One such development is the interleaved boost converter (IBC) that has the boost and current sharing capability for high-power applications. It allows input current sharing and heat dissipation when configured with many phases. The variation in any one of the components result in the shift of the overall reliability profile. The converter reliability is a function of time and operating conditions. To avoid downtime and replacement of converter, the state of health of power converter should be analyzed. Thus, this paper illustrates the reliability and failure study along with performance degradation analysis of individual components used in two-phase IBC. The two-phase IBC has been modeled in PSIM and the results are validated.