Open AccessHarmonic current protection scheme for voltage source converter‐based high‐voltage direct current transmission system
Author(s) -
Zheng Xiaodong,
Tai Nengling,
Wu Zhongyu,
Thorp James
Publication year - 2014
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2013.0377
Subject(s) - voltage source , fault (geology) , harmonic , high voltage direct current , transmission system , converters , pulse width modulation , electronic engineering , voltage , direct current , hvdc converter station , engineering , transmission (telecommunications) , electrical engineering , control theory (sociology) , computer science , physics , acoustics , control (management) , artificial intelligence , seismology , geology
Based on the inherent characteristic of the carrier‐based pulse‐width modulation converters, the response of the first carrier frequency harmonic (FCFH) current in the voltage source converter (VSC)‐based high‐voltage direct current (HVDC) transmission system is analysed under different fault conditions in this paper. A new protection scheme for the VSC‐based HVDC transmission systems is proposed based on the FCFH currents. By extracting the harmonic currents at both the endings of the DC transmission cable, the fault type can be identified. The VSC‐based HVDC test system is modelled in the PSCAD/EMTDC and the proposed protection scheme is evaluated with a variety of values of the fault resistance and the fault locations. Comprehensive test studies show that the performance of the proposed protection scheme is inspiring. It can recognise the internal and the external faults correctly.