A novel method to reduce the harmonic currents in the residual earth fault current during a single phase to ground fault in compensated grids

Steglich M, Löwe C, Bauernschmitt B, Rehtanz C, Böhm R, Franke J (2019)

Publication Type: Conference contribution

Publication year: 2019

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: Proceedings of 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019

Event location: Bucharest RO

ISBN: 9781538682180

DOI: 10.1109/ISGTEurope.2019.8905599

Abstract

This paper presents a new approach to reduce the harmonic currents during a single phase to ground fault in a compensated grid. The reduction of the harmonic component in the fault current improves network stability and possibly prevents a blackout. A model has been simulated in Matlab-Simulink with multiple current sources working as compensation system in a 20 kV medium voltage example grid. The simulation results show that the harmonic distortion of the grid voltage has a significant influence on the magnitude of the fault current. That may lead to exceeding the extinguishing limit if the distortion is too high. With the presented method it is possible to significantly reduce the harmonic current without intervening the grounding of the transformer and the zero system. Furthermore, it is possible to place the system anywhere within the grid, which leads to a high degree of flexibility and facilitates upgrading.

Authors with CRIS profile

Ralf Böhm Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik Jörg Franke Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik

Involved external institutions

Technische Universität Dortmund DE Germany (DE)

How to cite

APA:

Steglich, M., Löwe, C., Bauernschmitt, B., Rehtanz, C., Böhm, R., & Franke, J. (2019). A novel method to reduce the harmonic currents in the residual earth fault current during a single phase to ground fault in compensated grids. In Proceedings of 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019. Bucharest, RO: Institute of Electrical and Electronics Engineers Inc..

MLA:

Steglich, Michael, et al. "A novel method to reduce the harmonic currents in the residual earth fault current during a single phase to ground fault in compensated grids." Proceedings of the 2019 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2019, Bucharest Institute of Electrical and Electronics Engineers Inc., 2019.

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