Converter Modelling Aspects at the Boundary between EMT and RMS Domain

Kuri A, Zurowski R, Mehlmann G, Luther M (2022)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2022

Publisher: IEEE Xplore

Pages Range: 6

Conference Proceedings Title: 2022 International Conference on Smart Energy Systems and Technologies (SEST)

Event location: Eindhoven, Netherlands

URI: https://ieeexplore.ieee.org/document/9898501

DOI: 10.1109/SEST53650.2022.9898501

Abstract

The main distinction between Electromagnetic Transients (EMT) and Root Mean Square (RMS) simulation is the constant power system frequency assumption in the RMS domain. This paper highlights the insufficiencies of RMS simulation in a converter-dominated power system traced back to an elementary mathematical model. A new variable called ‘Transient Voltage Difference’ is introduced to quantify the modeling error of inductively coupled converters in RMS domain with respect to EMT domain. The proposed index is calculated analytically and verified simulatively in a basic inductive network highlighting the coupling impedance effects. This quantity measures the transient output voltage capacity and is vital in Voltage Source Converter (VSC) design and planning studies. ‘Transient Voltage Difference’ emphasizes the hidden assumption on the converter’s output voltage rating, as current sources consider only the limitation in current. It can be used to assess the viability of the RMS domain modelling approach. This work highlights the basic design requirements for typical VSC in stability analysis.

Authors with CRIS profile

Ananya Kuri Lehrstuhl für Elektrische Energiesysteme Gert Mehlmann Lehrstuhl für Elektrische Energiesysteme Matthias Luther Lehrstuhl für Elektrische Energiesysteme

Involved external institutions

Siemens AG DE Germany (DE)

How to cite

APA:

Kuri, A., Zurowski, R., Mehlmann, G., & Luther, M. (2022). Converter Modelling Aspects at the Boundary between EMT and RMS Domain. In 2022 International Conference on Smart Energy Systems and Technologies (SEST) (pp. 6). Eindhoven, Netherlands: IEEE Xplore.

MLA:

Kuri, Ananya, et al. "Converter Modelling Aspects at the Boundary between EMT and RMS Domain." Proceedings of the 2022 International Conference on Smart Energy Systems and Technologies (SEST), Eindhoven, Netherlands IEEE Xplore, 2022. 6.

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