Harmonic current protection scheme for voltage source converter-based high-voltage direct current transmission system

• Published in: IET generation, transmission & distribution Vol. 8; no. 9; pp. 1509 - 1515
• Main Authors: Zheng, Xiaodong, Tai, Nengling, Wu, Zhongyu, Thorp, James
• Format: Journal Article
• Language: English
• Published: Stevenage The Institution of Engineering and Technology 01.09.2014; Institution of Engineering and Technology; The Institution of Engineering & Technology
• Subjects: Applied sciences; carrier‐based pulse‐width modulation converters; Connection and protection apparatus; Converters; Convertors; Current carriers; DC transmission cable; Electric potential; Electric power transmission; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Exact sciences and technology; fault conditions; fault location; fault locations; fault resistance; Faults; FCFH currents; first carrier frequency harmonic current; harmonic current extraction; harmonic current protection scheme; Harmonics; HVDC power convertors; HVDC power transmission; HVDC transmission system; Modulation; power cables; Power electronics, power supplies; Power networks and lines; power system harmonics; power transmission protection; power transmission protection scheme; PSCAD‐EMTDC; PWM power convertors; Theory. Simulation; Voltage; voltage source converter‐based high‐voltage direct current transmission system; VSC‐based HVDC test system; power system harmonics; VSC-based HVDC test system; HVDC power convertors; harmonic current protection scheme; PWM power convertors; fault resistance; fault location; voltage source converter-based high-voltage direct current transmission system; FCFH currents; fault conditions; power transmission protection scheme; harmonic current extraction; HVDC power transmission; first carrier frequency harmonic current; power cables; DC transmission cable; power transmission protection; HVDC transmission system; carrier-based pulse-width modulation converters; fault locations; PSCAD-EMTDC; Performance evaluation; Protective device; Harmonic analysis; Damage prevention; Voltage source converter; Carrier frequency; High voltage; Direct current; High current; Defect localization; HVDC systems; Defect detection
• ISSN: 1751-8687; 1751-8695; 1751-8695
• DOI: 10.1049/iet-gtd.2013.0377

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.