Partial discharges in aeronautics: the last frontier?

Lebey, Thierry; Cella, Benjamin; Billard, Thibaut; Abadie, Cédric

doi:10.1109/icpadm.2015.7295260

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…All acknowledge that partial discharge risk in a harsh aeronautic environment where pressure, temperature and humidity variation, electrical stress created by inverter and harness length and weight increase. [1,2,3,4] Among key issues of aeronautic companies that has to be dealt with at IRT Saint-Exupéry, two will be addressed in this paper and will be the main contribution.…”

Section: Scope and Goal Of The Workmentioning

confidence: 99%

Non-Intrusive Partial Discharges Investigations on Aeronautic Motors

Billard

Abadie

Taghia

2016

SAE Technical Paper Series

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 18225 Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr AbstractThe present paper reports non-electrically intrusive partial discharge investigations on an aeronautic motor. Relevancy, robustness and repeatability of partial discharge testing procedures, both on insulating materials characterization and on operating aeronautic equipment are essential to ensure reliability of the aircraft systems. The aim of this paper is to be the very first step of defining such procedures and the associated test equipment.To do so, the paper will start by providing an understanding of partial discharge phenomena and will review typical more electrical aircraft architecture. Key characteristics causing partial discharge risk to increase will be highlighted. The impact of harness length, high performance power electronics and voltage level increase on insulation system is demonstrated.Then, an analysis is carried out from motor design perspective to find out which test procedure is relevant to assess each insulation system performance both at atmospheric and reduced pressures. The study helps to realize the benefits of using multiple test sample and procedure to assess insulation system performance level through the design process of the motor. It is shown that a good agreement observed between stator and representative samples. This paper will also review the ability of the non-intrusive test method to detect partial discharge with a full scope of voltage signal from AC to impulse voltage and under different pressures. The paper concludes with an analysis of results and thoughts about future work regarding motor design taking into account partial discharge risk and evolution of proposed procedure.

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Section: Scope and Goal Of The Workmentioning

confidence: 99%