Verification of Hygrothermal Simulations Using Silicone Encapsulated Climate Sensors in Continuously Operated IGBT Power Modules

Fröhling, Sören; Kostka, Benedikt; Wenzel, Johannes C.; Fischer, Katharina; Peters, Jan-Hendrik; Hanf, Michael; Zorn, Christian; Dehning, Kirsten; Zimmermann, Stefan; Kaminski, Nando; Mertens, Axel

doi:10.23919/icpe2023-ecceasia54778.2023.10213687

Cited by 2 publications

(2 citation statements)

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“…W ITHIN an inverter system, the utilization of insulated-gate bipolar transistor (IGBT) power electronics plays a pivotal role in the distribution and conversion of direct current sourced from photovoltaic (PV) modules, facilitating the generation of alternating current. Power electronics for PV systems are subjected to demanding environmental conditions throughout their operational lifetime, often exceeding 30 years [1]. These stressors necessitate robust design and material selection to ensure sustained functionality, reliability and high performance.…”

Section: Introductionmentioning

confidence: 99%

“…One critical environmental parameter is the moisture that penetrates into the electronic parts of the system. It has become imperative to investigate the internal moisture within an IGBT mod-ule, so it increasingly becomes a focal point of scientific exploration [1]- [4]. This heightened focus stems from the pursuit of performance enhancements, aimed at fortifying the reliability and dependability of power electronics.…”

Section: Introductionmentioning

confidence: 99%

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Investigating Humidity Transfer in IGBT Modules: An Integrated Experimental and Simulation Approach

Titova,

Lapke

2024

IEEE Open J. Power Electron.

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This study presents a novel, integrated approach to investigating and characterizing the impact of humidity on Insulated-Gate Bipolar Transistors (IGBTs) within large-scale inverter systems. Combining meticulously designed experimental setups and advanced finite element simulations, we delve deep into the complex dynamics of moisture transfer within IGBT modules. Our research demonstrates a meticulously designed experimental setup within a controlled climate chamber, enabling a comprehensive characterization process of the humidity transfer into the IGBT module. The proposed method allows for a detailed study of the moisture distribution as well as the effect of the temperature on the moisture within an IGBT module. We leverage the advanced capabilities of commercial finite element software to complement our experimental findings. These simulations enable a deeper understanding of the moisture distribution's symmetries and provide invaluable insights into simplifying the complex simulations. By integrating these diverse methodologies, we develop a comprehensive approach that deciphers the spatial distribution of humidity within the module and its real-time responses to environmental conditions. This integrated approach holds an immense potential for analyzing optimal system performance and facilitating self-optimization of the inverter by predicting stress induced by humidity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%