Improved protection method of HVDC transmission line based on the analysis of traveling wave dispersion

Xie, Lihua; Jin, Liwen; Wang, X. L.; Ning, Lipeng; Wang, T. L.

doi:10.1109/powercon.2014.6993712

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…For example, in [51] the traveling wave dispersion effect, due the electrical characteristic of the line, is considered in the model to improve the robustness of the method. References [52,53] take advantage of the application of the Wavelet theory on the traveling wave to obtain more information from the signal to increase protection accuracy.…”

Section: Traveling Wave-based Methodsmentioning

confidence: 99%

Design of protection schemes for multi-terminal HVDC systems

Blond

Bertho

Coury

et al. 2016

Renewable and Sustainable Energy Reviews

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Section: Traveling Wave-based Methodsmentioning

confidence: 99%

Design of protection schemes for multi-terminal HVDC systems

Blond

Bertho

Coury

et al. 2016

Renewable and Sustainable Energy Reviews

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“…There are several ways to improve the performance of travelling wave‐based protection. For example, in [72], the dispersion effect of the travelling wave and electrical line characteristics is considered to strengthen the protection method.…”

Section: Primary Fault Detection and Location Techniquesmentioning

confidence: 99%

Primary and backup fault detection techniques for multi‐terminal HVdc systems: a review

Yousaf

Liu

Raza

et al. 2020

IET gener. transm. distrib.

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“…where L is the length of the line, and γ is the propagation constant, which is determined by the parameters of the transmission line. Considering the frequency dependent characteristic of the transmission line, the propagation constant γ varies with frequency [26], [27]. Different frequency components of TW feature different transmission characteristics; thus the TW waveform will be distorted during propagation.…”

Section: Transmission Characteristic Of the Line And The Similarity M...mentioning

confidence: 99%

A Pilot Protection Scheme for Transmission Lines in VSC-HVDC Grid Based on Similarity Measure of Traveling Waves

Wang¹,

Hao²,

Zhang³

et al. 2019

IEEE Access

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The voltage-source converter (VSC)-based high-voltage direct-current (HVDC) grid is an effective means for large-scale integration of renewable energies. This paper proposes a pilot protection scheme as the backup protection for transmission lines in the VSC-HVDC grid. The traveling wave (TW) propagating processes and waveform characteristics at both ends of the transmission line are analyzed under different fault conditions. Based on the different characteristics between internal and external fault conditions, the protection is formulated utilizing similarity measure of TW waveforms. A four-terminal VSC-HVDC grid is modeled on PSCAD/EMTDC platform to test the performance of the proposed protection. Various simulation results demonstrate that the proposed protection is able to accurately discriminate internal faults from external faults and identify the faulty pole. The protection performance analysis shows that the protection is insensitive to the fault resistance, the protection sampling rate, and the inductance value of the reactors at the end of lines. The protection algorithm is simple with small calculation amount and does not require data synchronism. Furthermore, the proposed protection has superiority in the fault resistance withstand ability compared with other backup protections.

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Improved protection method of HVDC transmission line based on the analysis of traveling wave dispersion

Cited by 5 publications

References 9 publications

Design of protection schemes for multi-terminal HVDC systems

Design of protection schemes for multi-terminal HVDC systems

Primary and backup fault detection techniques for multi‐terminal HVdc systems: a review

A Pilot Protection Scheme for Transmission Lines in VSC-HVDC Grid Based on Similarity Measure of Traveling Waves

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