Mission profile-based reliability design and real-time life consumption estimation in power electronics

Mussallam, Mahera and Yin, Chunyan and Bailey, Christopher and Johnson, Christopher Mark (2014) Mission profile-based reliability design and real-time life consumption estimation in power electronics. IEEE Transactions on Power Electronics, 30 (5). pp. 2601-2613. ISSN 0885-8993

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Abstract

Power electronics are efficient for conversion and conditioning of the electrical energy through a wide range of applications. Proper life consumption estimation methods applied for power electronics that can operate in real-time under in-service mission profile conditions will not only provide an effective assessment of the products life expectancy but also they can deliver reliability design information. This is important to aid in manufacturing and thus help in reducing costs and maximizing through-life availability. In this paper, a mission profile based approach for real-time life consumption estimation which can be used for reliability design of power electronics is presented. The paper presents the use of electro-thermal models coupled with physics-of-failure analysis by means of real-time counting algorithm to provide accurate life consumption estimations for power modules operating under in-service conditions. These models, when driven by the actual mission profiles, can be utilized to provide advanced warning of failures and thus deliver information that can be useful to meet particular application requirements for reliability at the design stage. To implement this approach, an example of two case studies using mission profiles of a metro-system and wind-turbines applications are presented.

Item Type: Article
Additional Information: 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.
Keywords: Power electronics, Mission profile, Electro-thermal models, Real-time, Physics of failure, Life consumption.
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: https://doi.org/10.1109/TPEL.2014.2358555
Depositing User: Burns, Rebecca
Date Deposited: 22 Jun 2016 08:39
Last Modified: 13 Sep 2016 23:14
URI: http://eprints.nottingham.ac.uk/id/eprint/34263

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