Thermal Analysis of the Laminated Busbar System of a Multilevel Converter
作者： Liudmila Smirnova , Raimo Juntunen , Kirill Murashko , Tatu Musikka , Juha Pyrhonen
DOI: 10.1109/TPEL.2015.2420593
关键词: Busbar 、 Temperature measurement 、 Electronic engineering 、 Mechanical engineering 、 Thermal 、 Thermal analysis 、 Power (physics) 、 Materials science 、 Heat transfer 、 Joule 、 Converters
摘要: Laminated busbar systems are commonly used in power electronic converters because of their low stray inductance. While the electromagnetic analysis a system is widely presented literature, there lack accurate thermal modeling. In this paper, presented. An analytical lumped parameter model (LPTM) developed. The LPTM applied to fast estimation mean temperature and temperature-dependent losses busbars by proposed algorithm. Joule produced nonsinusoidal currents flowing through converter estimated. skin proximity effects, which have strong influence on ac resistance busbars, considered loss estimation. Thus, comprehensive electrothermal developed, practical use design. It allows optimizing inductance, material consumption, cost as long specified limits not exceeded. finite-element method modeling validates developed LPTM. Laboratory measurements two operating points been performed, they show good correlation with simulation results.
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