Protection Coordination of AC/DC Intersystem Faults in Hybrid Transmission Grids

Prommetta J, Schindler J, Jäger J, Keil T, Butterer C, Ebner G (2020)

Publication Type: Journal article

Publication year: 2020

Journal

IEEE Transactions on Power Delivery Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 35

Pages Range: 2896-2904

Article Number: 9112359

Journal Issue: 6

DOI: 10.1109/TPWRD.2020.3000731

Abstract

The new characteristics and phenomena of hybrid AC/DC transmission grids challenge the conventional protection concepts. In hybrid AC/DC overhead line systems, AC and DC systems are located on the same support structure. As a result, electromagnetic and galvanic interactions between the AC- and the DC-line influence the AC-protection and the DC-control in a novel and complex way. This paper presents key findings and solutions from a current 400-kV-hybrid AC/DC overhead line project in Germany. The focus is on AC/DC intersystem faults, i.e. galvanic contact between DC and AC systems. Fault detection and fault response of the AC-protection and the DC-control as well as a proper AC/DC protection coordination are discussed. The paper illustrates the challenges of a secure and dependable fault clearing and indicates solution methods. The findings of this paper are based on EMT simulations with detailed PSCAD-models of the hybrid AC/DC overhead line and the VSC-converters. Laboratory protection tests have been conducted and confirmed the results.

Authors with CRIS profile

Jonas Prommetta Lehrstuhl für Elektrische Energiesysteme Jakob Schindler Lehrstuhl für Elektrische Energiesysteme Johann Jäger Professur für Elektrische Energieversorgung

Involved external institutions

TransnetBW GmbH DE Germany (DE)

How to cite

APA:

Prommetta, J., Schindler, J., Jäger, J., Keil, T., Butterer, C., & Ebner, G. (2020). Protection Coordination of AC/DC Intersystem Faults in Hybrid Transmission Grids. IEEE Transactions on Power Delivery, 35(6), 2896-2904. https://dx.doi.org/10.1109/TPWRD.2020.3000731

MLA:

Prommetta, Jonas, et al. "Protection Coordination of AC/DC Intersystem Faults in Hybrid Transmission Grids." IEEE Transactions on Power Delivery 35.6 (2020): 2896-2904.

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