Mission profile simplification method for reliability analysis of PV converters

Multi-timescale Modelling for Reliability Analysis of Power Electronic-Based Systems

“…The proposed workflow of [42] for mission profile analysis can be seen in Figure 3.5. The mission profile is the main model input and it is classified into different event types and amplitudes.…”

“…The main event types used are large transition events, small transition events, steady-state events, and zero power events. For this analysis, all zero power events representing night-time were discarded because it was assumed that they do not affect the system operating lifetime [42]. The night-times add an offset from operational to calendar lifetime, and this effect was ignored, as operational lifetime was the focus.…”

“…This chapter will present the system timescale modelling methods. Two approaches have been developed and published [42,43,44], an event-based modelling method and a mission profile simplification method. The results will be presented, and some applications will be discussed.…”

“…This section presents the work published in [42] to introduce event-based simulation for long term reliability evaluation.…”

“…It offers the ability to discern events based on their rate of change and shape, as opposed to just looking at cycle amplitudes as in the conventional methods. The first-authored paper [42] presents an effort to explore the opportunities offered by this event-based approach.…”