  Interleaved converters are used in photovoltaic (PV) applications to handle
high power conditions with high reliability. To improve the reliability of
these converters, redundant switch configuration can be employed which reduce
the failure rates of the power switches significantly. However, evaluation
reliability of the interleaved converters equipped with redundant switch
configurations may be complex. This paper aims to simplify the reliability
Analysis of interleaved converters considering mission profile and redundant
switch configuration. Different possible configurations of the studied
converter are shown as Markov chain states in the proposed method, which
simplify the reliability and failure rates Analysis. The effect of different
parameters such as the converter power level, switch configuration type, and
operation modes are derived and a better insight into the effectiveness of the
switch configuration on improving the reliability is provided.
