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Power cycling lifetime estimation of IGBT power modules based on chip temperature modeling
(Lappeenranta University of Technology, 2012-12-11)
In this doctoral thesis, methods to estimate the expected power cycling life of power semiconductor modules based on chip temperature modeling are developed. Frequency converters operate under dynamic loads in most ...
Thermal load analysis and monitoring of doubly-fed wind power converters in low wind speed conditions
(Lappeenranta University of Technology, 2017-11-30)
State-of-the-art wind power technology allows multi-megawatt installations in low wind areas. Meanwhile, the present development is focused on aerodynamic improvement, enhanced efficiency, and reliability. Research is ...
Usability and limitations of behavioural component models in IGBT short-circuit modelling
(Lappeenranta-Lahti University of Technology LUT, 2020-09-04)
Power electronic device design and electrical system analysis can be enhanced by applying modern simulation tools, which make it possible to decrease the use of costly and time-consuming prototypes. One very critical ...