Overvoltage stress of ±550 kV DC GIS for converter station

Kuan Zheng; Linzhen Fan; Yahui Sun; Guoyun Su; Shangfu Teng; Deli Zheng; Jianbin Qiu

doi:10.1117/12.3015264

6 February 2024 Overvoltage stress of ±550 kV DC GIS for converter station

Kuan Zheng, Linzhen Fan, Yahui Sun, Guoyun Su, Shangfu Teng, Deli Zheng, Jianbin Qiu

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129794I (2024) https://doi.org/10.1117/12.3015264
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

DC Gas-Insulated Switchgear (GIS) can significantly reduce the floor area and construction and maintenance costs of traditional DC converter stations and has a good development prospect. Based on the typical converter station topology and arrester configuration scheme, this paper sets different fault conditions to assess the overvoltage stress of ±550 kV DC GIS. The simulation results show that the DC GIS will bear the highest transient overvoltage, up to 874.9 kV, when the converter station starts with an open circuit fault at the inverter side. The insulation level of DC GIS is further proposed, in which the Lightning Impulse Withstand Level (LIWL) is 1356 kV and the Switching Impulse Withstand Level (SIWL) is 1110 kV. The research results can provide a reference for the insulation design and equipment development of high voltage DC GIS.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Kuan Zheng, Linzhen Fan, Yahui Sun, Guoyun Su, Shangfu Teng, Deli Zheng, and Jianbin Qiu "Overvoltage stress of ±550 kV DC GIS for converter station", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129794I (6 February 2024); https://doi.org/10.1117/12.3015264

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