Practical Considerations for Designing Reliable DC/DC Converters, Applied to a BIPV Case

Energies

Simon Ravyts¹  Johan Driesen¹  MauricioDalla Vecchia¹  Wilmar Martinez¹  GielVan den Broeck¹  Wieland Van De Sande²  Michael Daenen²  Martijn Duraij³ 

[1] Department of Electrical Engineering, ESAT, KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium;EnergyVille-Thor Park 8310, 3600 Genk, Belgium;Technical University of Denmark (DTU), Bygning 101A, Anker Engelunds Vej 1, 2800 Kgs.-Lyngby, Danmark;

关键词: pv;    bipv;    lvdc;    dc/dc module-level converters;   

DOI  :  10.3390/en13040834

来源: DOAJ

【 摘 要 】

State-of-the-art reliability assessment typically starts from a given circuit topology, for which the most suitable components are selected using a Physics of Failure analysis. This paper, however, addresses the topology selection stage, which is the foundation in designing reliable converters. Based on an overview of the reliability performance of different components, a methodology is presented as a guideline for comparing topologies to one another. The focus is directed at practical consequences associated with certain designs. Furthermore, an overview is provided on the latest developments in component technology reliability improvements. The developed methodology is mainly intended for demanding applications, where long lifetimes are required or elevated ambient temperatures are present. After the topology selection, an overview of possibilities is given that allows further increasing converter availability. Finally, the methodology is applied to the design of module level converters for building integrated photovoltaics, which is a high temperature application with a high desired lifetime. A prototype and experimental results are presented.

【 授权许可】

Unknown