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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 the remaining useful lifetime (RUL) of insulated-gate bipolar transistors (IGBTs) is useful for effective maintenance of a power converter before the failure of a device. Thermo-mechanical stresses are the major cause to the aging of the weak points of the packaging that determines the lifetime of an IGBT module. Traditionally, the RUL of an IGBT module is simply predicted based...
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...
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