Lifetime analysis of two commercial PV converters using multi-year degradation modelling

This paper presents a practical method to perform multi-year degradation modeling for power electronics reliability analysis. It will present how to combine a PV mission profile simplification method with a parameter degradation feedback mechanism. The overall method is presented, along with how to characterize the parameters for the method from experimental results. The method and the characterization method are demonstrated against simulated wear-out curves based on experimental lifetime tests. The whole workflow is applied to analyze two commercial PV generator systems in order to compare the inclusion and exclusion of the degradation feedback on lifetime prediction. All model parameters are shown in the paper, and the used mission profiles will be published available online.</p

Multilevel inverter

The PRIMES laboratory is a common platform shared by academics and industrialists around power electronics problems such as high temperature packaging or power electronics reliability. Because of its new development, new equipments have to be d In the field of power electronics, a multilevel inverter has to be designed. The main objective of this EPS project is to design the multilevel inverter. Some tasks could be : 1. Choice of the power converter architecture, 2. Simulation of the system, 3. Choice of components, 4. Prototype, This subject will take place inside the PRIMES laboratory.Ingeniería Industria

Applications on fault tree analysis in railway power supply systems

Fault tree analysis (FTA) is presented to model the reliability of a railway traction power system in this paper. First, the construction of fault tree is introduced to integrate components in traction power systems into a fault tree; then the binary decision diagram (BDD) method is used to evaluate fault trees qualitatively and quantitatively. The components contributing to the reliability of overall system are identified with their relative importance through sensitivity analysis. Finally, an AC traction power system is evaluated by the proposed methods