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Linear unknown input functional observer for thermal estimation in power electronic modules

Trajin, Baptiste Linear unknown input functional observer for thermal estimation in power electronic modules. (2020) In: 2020 Prognostics and System Health Management Conference (PHM), 4 May 2020 - 7 May 2020 (Besançon, France).

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Official URL: https://doi.org/10.1109/PHM-Besancon49106.2020.00016

Abstract

High integrated power electronic modules are more and more designed with the emergence of new semi-conductor technologies. Thus, increase of reliability of power modules induces the precise knowledge of the local temperature, even if it can not be measured at any location. Moreover, some external variables of having an effect on the system may be unknown. In this paper, the application of an unknown input observer is proposed. It allows us to estimate the temperature at any location using measurements provided from thermal sensors located at a few precise points without measuring all inputs of the system. The aim is then to estimate internal temperature of a system in order to prevent over-temperature operations and then fault of the system. Consequently, a linear unknown input functional observer (LUIFO) of minimal order observer is design for thermal estimation of silicone gel used in power electronic modules.

Item Type:Conference or Workshop Item (Paper)
Additional Information:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The original document is available on : https://doi.org/10.1109/PHM-Besancon49106.2020.00016
HAL Id:hal-02880901
Audience (conference):International conference proceedings
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Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
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Deposited On:17 Jun 2020 13:34

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