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Power electronic converters are one of the most fragile components in wind turbines. This paper proposes a two-dimensional (2-D) case temperature-based real-time aging monitoring method for insulated-gate bipolar transistor (IGBT) modules in power converters. By placing two thermal sensors for each switch at the interface between the baseplate of an IGBT module and the cold plate, the thermal parameters...
The information of junction temperature is crucial for operation management of IGBT modules. In practice, junction temperature is typically estimated by using an electrothermal model. IGBT modules are subject to various aging processes during operation, some of which, e.g. substrate solder crack, changes the thermal impedance of an IGBT module. However, in the literature little work has included the...
In this paper, a compact Ka-band SIW power divider based on coupling slot transition between SIW is presented. A conventional SIW power divider is also designed for comparison. The proposed structure keeps almost all the advantages of the conventional case with nearly a half reduction in size. The simulated results show the novel multi-layer power divider has a good performance.
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