A MISO FAULT DETECTION FOR HVDC GRIDS

Autor: Jahn, Ilka, Nahalparvari, Mehrdad, Norrga, Staffan
Rok vydání: 2021
Předmět:
Zdroj: The 17th International Conference on AC and DC Power Transmission (ACDC 2021).
DOI: 10.1049/icp.2021.2448
Popis: Research on fault detection for high-voltage direct current (HVDC) grids has had a focus on single-ended DC fault detection using information from only the local line end. This paper proposes the use of additional information from neighbouring lines around the same busbar in a multiple-input single-output (MISO) fault detection. Simulations results show that the protection’s dependability and security margins are increased which is particularly useful for remote faults in long lines with small line inductors. A discussion on practical implementation taking into account possible intellectual property (IP) aspects is added. A MISO fault detection can be useful to overcome some of the uncertainties due to missing knowledge about implementation details. This work has received funding from the Swedish Energy Agency, RTE, and Svenska Kraftnät (OPERATE HVDC).QC 20211220
Databáze: OpenAIRE