Thermal stress mitigation by Active Thermal Control: Architectures, models and specific hardware

Alessandro Soldati, Fabrizio Dossena, Giorgio Pietrini, Davide Barater, Carlo Concari, Francesco Iannuzzo

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

7 Citations (Scopus)

Abstract

This work proposes an Active Thermal Control (ATC) of power switches. Leveraging on the fact that thermal stress has wide impact on the system reliability, controlling thermal transients is supposed to lengthen the lifetime of electronic conversion systems. Indeed in some environments, such as transportation, reliability and lifetime are still obstacles to widespread adoption of electric and electronic actuators, despite a general trend of electrification spreading in many different areas of interest. Active thermal control is attained leaving the electric parameters of load untouched, while acting dynamically on gate parameters (voltage and resistance), by means of a specifically designed gate driver. Two different control algorithms, sharing similar model and hardware, are presented: one is based on a linear controller, while the other relies on a model-predictive control (MPC) strategy. Simulation results of control schemes are presented, together with evaluation of the proposed loss models. Experimental proof of the ability of the proposed control to reduce thermal swing and related stress on the device is presented, too.
Original languageEnglish
Title of host publicationProceedings of 2017 IEEE Energy Conversion Congress and Exposition (ECCE)
PublisherIEEE Press
Publication dateOct 2017
Article number17337878
ISBN (Electronic)978-1-5090-2998-3
DOIs
Publication statusPublished - Oct 2017
Event2017 IEEE Energy Conversion Congress and Exposition (ECCE) - Cincinnati, Ohio, United States
Duration: 1 Oct 20175 Oct 2017

Conference

Conference2017 IEEE Energy Conversion Congress and Exposition (ECCE)
CountryUnited States
CityCincinnati, Ohio
Period01/10/201705/10/2017

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