Impact of recovery and sympathetic inrush phenomena on VSC HVDC systems

Richter M, Mehlmann G, Luther M (2022)

Publication Type: Conference contribution

Publication year: 2022

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2022 57th International Universities Power Engineering Conference: Big Data and Smart Grids, UPEC 2022 - Proceedings

Event location: Istanbul TR

ISBN: 9781665455053

DOI: 10.1109/UPEC55022.2022.9917995

Abstract

The converter transformer of a VSC HVDC station can be driven into saturation caused by external grid events as short-circuits or the energization of nearby transformers. These effects are classified as inrush phenomena and named recovery inrush and sympathetic inrush, respectively. In this paper, a thorough study on different influencing factors on the inrush magnitude and its impact on the operation of the HVDC system is analyzed based on electromagnetic transient analysis using an average based EMT MMC HVDC model. As important parameters for the analysis of the recovery inrush the short-circuit ratio, the time point of fault inception and the fault duration, the fault distance and the fault resistance are selected. The impact of these parameters on the inrush intensity and the transients of the transformer and converter currents as well as active and reactive powers during the inrush events are analyzed and worst-case scenarios evaluated. By evaluation of internal converter signals, it is checked whether the converter is able to maintain stability for different inrush intensities.

Authors with CRIS profile

Michael Richter Lehrstuhl für Elektrische Energiesysteme Gert Mehlmann Lehrstuhl für Elektrische Energiesysteme Matthias Luther Lehrstuhl für Elektrische Energiesysteme

How to cite

APA:

Richter, M., Mehlmann, G., & Luther, M. (2022). Impact of recovery and sympathetic inrush phenomena on VSC HVDC systems. In 2022 57th International Universities Power Engineering Conference: Big Data and Smart Grids, UPEC 2022 - Proceedings. Istanbul, TR: Institute of Electrical and Electronics Engineers Inc..

MLA:

Richter, Michael, Gert Mehlmann, and Matthias Luther. "Impact of recovery and sympathetic inrush phenomena on VSC HVDC systems." Proceedings of the 57th International Universities Power Engineering Conference: Big Data and Smart Grids, UPEC 2022, Istanbul Institute of Electrical and Electronics Engineers Inc., 2022.

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