Methodical Identification and Evaluation of Critical Failures in DC Hybrid Switchgear

Streck M, Gehring J, Bernhardt A, Fauth B, Gerke S, Hoyer C, Kaiser J, Uhr-Muller AC, Oehler C, Berger F, Lorentz V, März M (2025)

Publication Type: Conference contribution

Publication year: 2025

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2025 IEEE 7th International Conference on DC Microgrids, ICDCM 2025

Event location: Tallinn, EST

ISBN: 9798331512743

DOI: 10.1109/ICDCM63994.2025.11144745

Abstract

DC Hybrid switchgear are a key element for the safe operation of future high-efficient DC distribution systems. This paper contributes to improve the design of these switchgear in the course of future development processes. For this purpose, a proprietary failure analysis method based on an FMEA is presented and applied to a generic parallel structure of a hybrid DC switchgear as an example. Altogether more than 60 failure modes are identified and evaluated. The failure modes determined as particularly critical affect the function of opening of the hybrid switchgear and are discussed in detail. An examination of the causes, effects, detection approaches and possible mitigation measures of these failure modes are provided. This provides information on increasing the reliability and safety of hybrid switchgear as a basis for the design and development process.

Authors with CRIS profile

Martin März Lehrstuhl für Leistungselektronik (LEE)

Involved external institutions

Technische Universität Ilmenau DE Germany (DE) Fraunhofer-Institut für Integrierte Systeme und Bauelementetechnologie (IISB) DE Germany (DE) Panasonic Industry Europe GmbH DE Germany (DE) Phoenix Contact DE Germany (DE) Schaltbau GmbH DE Germany (DE) E-T-A Elektrotechnische Apparate GmbH DE Germany (DE) Universität Bayreuth DE Germany (DE)

How to cite

APA:

Streck, M., Gehring, J., Bernhardt, A., Fauth, B., Gerke, S., Hoyer, C.,... März, M. (2025). Methodical Identification and Evaluation of Critical Failures in DC Hybrid Switchgear. In Andrii Chub (Eds.), 2025 IEEE 7th International Conference on DC Microgrids, ICDCM 2025. Tallinn, EST: Institute of Electrical and Electronics Engineers Inc..

MLA:

Streck, Matthias, et al. "Methodical Identification and Evaluation of Critical Failures in DC Hybrid Switchgear." Proceedings of the 7th IEEE International Conference on DC Microgrids, ICDCM 2025, Tallinn, EST Ed. Andrii Chub, Institute of Electrical and Electronics Engineers Inc., 2025.

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