@inproceedings{723e5145a76e410f8be40fe533dcdfb3,
title = "Harmonic Characteristics of LCC-HVDC under Unbalanced Conditions",
abstract = "Unbalanced faults could inject negative sequence currents and voltages into the power system, which in turn affects the operational quality of the whole system. This paper mainly studies the harmonic characteristics of traditional HVDC (Line Commuted Converter High Voltage Direct Current, LCC-HVDC) transmission system under unbalanced conditions. Analysis results show that when there is a negative sequence voltage on the bus of converter, harmonic voltages of 2nd and 2nth order harmonics will be generated on the DC side. This paper gives the calculation formula of harmonics in DC voltage, which is verified by simulation. The interesting phenomenon is that amplitude of 2nd and 4th harmonic voltage only depend on the voltage amplitude of negative sequence when the commutation overlapping angle is not taken into account.",
keywords = "LCC-HVDC, asymmetric fault, harmonic voltage, negative sequence voltage",
author = "Liang Wang and Xi Zhang and Tiezhu Wang and Zhen Wang",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 56th IEEE International Symposium on Circuits and Systems, ISCAS 2023 ; Conference date: 21-05-2023 Through 25-05-2023",
year = "2023",
doi = "10.1109/ISCAS46773.2023.10181772",
language = "English",
series = "Proceedings - IEEE International Symposium on Circuits and Systems",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "ISCAS 2023 - 56th IEEE International Symposium on Circuits and Systems, Proceedings",
address = "United States",
}