Comparative Analysis of a Detailed and an Average VARC DCCB model in MTDC Systems

Conference paper (2022)

Authors

A.D. Shetgaonkar Intelligent Electrical Power Grids - EEMCS
Siyuan Liu Xian Jiaotong University
M. Popov Intelligent Electrical Power Grids - EEMCS
Research Group
Intelligent Electrical Power Grids (EEMCS) (TU Delft)
Copyright: © 2022 A.D. Shetgaonkar, Siyuan Liu, M. Popov
DOI: https://doi.org/10.1109/PESGM48719.2022.9916949
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Published Date

2022

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

Intelligent Electrical Power Grids

Abstract

Direct current circuit breaker (DC CB) is the key component to provide reliable operation of Multi-terminal Direct Current (MTDC) system. Fast, effective and accurate DC CB models are needed for system-level studies. Due to large number of components in the DC CB, its detailed modeling is needed in order to simulate current interruption process correctly. However, the simulation time may be longer depending on the network complexity. This paper proposes an average model which is compared to a detailed model of a Voltage-source-converter resonant current (VARC) DC CB in an MTDC system in terms of its performance and computation time for two typical simulation cases. The average and the detailed model are modelled and simulated in PSCAD/EMTDC environment. An accurate response of the average model during fast transient event is presented, showing additional computational advantage.

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