@inproceedings{6331cfeceb35477698a894ae26d80bb2,
title = "Protection of Multi-Terminal VSC-HVDC Grids Based on the Response of the First Carrier Frequency Harmonic Current",
abstract = "Protection of multi-terminal Voltage Source Converter based High Voltage Direct Current (VSC-MTDC) grids is a major challenge for future practical DC transmission technology. According to the harmonic-based protection studies, the response of first carrier frequency harmonic (FCFH) current in Pulse Width Modulation (PWM)-based VSC-HVDC can be used to discriminate external AC faults in point to point VSC-HVDC systems. However, the application of FCFH current for a selective fault detection system in VSC-MTDC grids is not studied yet. This research investigates FCFH current existed in converter DC link measured data, to detect the faulty section in VSC-MTDC system, when the system face faults with variations in location and resistance. A radial VSC-MTDC system with 2-level PWM VSC converters is simulated in PSCAD and MATLAB is used to extract FCFH current based on short-time Fourier transform. Based on the relay locations, the results show the feasibility of the protection algorithm, in discriminating between internal and faults for each zone.",
keywords = "VSC-MTDC, Protection, Harmonics, VSC, FCFH Current, Singal Processing, Short-Time Fourier, HVDC",
author = "Mani Ashouri and Hesam Khazraj and Silva, {Filipe Miguel Faria da} and Bak, {Claus Leth}",
year = "2018",
month = sep,
doi = "10.1109/UPEC.2018.8541900",
language = "English",
isbn = "978-1-5386-2911-6",
pages = "1--5",
booktitle = "Proceedings of the 2018 53rd International Universities Power Engineering Conference (UPEC)",
publisher = "IEEE Press",
note = "2018 53rd International Universities Power Engineering Conference, UPEC ; Conference date: 04-09-2018 Through 07-09-2018",
}