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Observer based temperature control for reduced thermal cycling in power electronic cooling

Wang, Xiang; Castellazzi, Alberto; Zanchetta, Pericle

Authors

Xiang Wang

Alberto Castellazzi

Pericle Zanchetta



Abstract

This paper presents an advanced dynamic cooling strategy for multi-layer structured power electronic modules. A observer based feedback controller is proposed to reduce a power device or module's thermal cycle amplitude during operation, with the aim of improving reliability and lifetime. The full-state observer design is based on a developed Cauer type thermal model. The observer enables estimation and control of the temperature at reliability critical locations only measuring one accessible location. This makes the method particularly powerful and suitable for application in power systems. The designed strategy is confirmed experimentally. Although the experiment is developed for a specific application scenario, the proposed strategy is of general validity.

Journal Article Type Article
Journal Applied Thermal Engineering
Print ISSN 1359-4311
Electronic ISSN 1873-5606
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 64
Issue 1-2
APA6 Citation Wang, X., Castellazzi, A., & Zanchetta, P. (in press). Observer based temperature control for reduced thermal cycling in power electronic cooling. Applied Thermal Engineering, 64(1-2), doi:10.1016/j.applthermaleng.2013.12.001
DOI https://doi.org/10.1016/j.applthermaleng.2013.12.001
Keywords Cooling, Reliability, Temperature Control, Thermal Stress,
Thermal Cycle
Publisher URL http://dx.doi.org/10.1016/j.applthermaleng.2013.12.001
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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