The timely and unique book Reliability of Power Electronic Converter Systems outlines current research on reliability of power conversion systems. It includes well-known metrics such as mean lifetime, mean time to failure, and mean time between failures; modeling concepts; physics of failure of power semiconductors; failure models; remaining useful life; point availability; failure mode, mechanism, and effects analysis (FMMEA) or failure mode and effects analysis (FMEA); and principal component analysis together with stochastic hybrid systems (SHS) models for performance and reliability analysis.All chapters include a meaningful list of references at their end, as well as conclusions, a summary, and recommendations. A table of contents and index are also provided. Highlighting several pioneering reliability modeling, lifetime prediction, and converter designs for reliability, the book fosters further discussion, research, and development. It is suited for teachers, students, researchers, and professionals in the field of power electronics systems and their applications, as well as for researchers willing to contribute to cutting-edge concepts and technology in reliability enhancement, testing, and prediction in the power electronics field.