Resonance frequency‐based protection scheme for ultra‐high‐voltage direct‐current transmission lines

Yang, Yayu; Tai, Ningling; Fan, Chunju; Yang, Liu; Shi, Chunqi

doi:10.1049/iet-gtd.2017.0488

Cited by 18 publications

(16 citation statements)

References 36 publications

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“…References [14–16] try to resolve some of the problems of the approaches provided in [11,12] by proposing new protection methods based on transient AC voltage and current. Unfortunately, a comprehensive study on the effect of fault location and line length is not presented in these papers.…”

Section: Comparison To Similar Studies and Discussionmentioning

confidence: 99%

Novel pilot protection scheme for line‐commutated converter high voltage direct current transmission lines based on behaviour of characteristic harmonic impedances

Marvasti

Mirzaei

Golshan

2020

IET Generation Trans & Dist

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Transient behaviour of high‐voltage direct current transmission lines under direct current faults can be easily affected by many factors, namely, fault location, fault resistance and transmission line length. In order to design a suitable protective scheme, the impact of these factors should be thoroughly investigated. An impedance‐based analysis is more suitable in evaluating high‐voltage direct current system behaviour during direct current line faults, and consequently, in comparison to similar harmonic current or voltage‐based schemes, a characteristic harmonic impedance‐based protection is more capable in fault detection. Therefore, this paper presents a novel pilot protection method for line‐commutated converter based high‐voltage direct current transmission lines, which relies on continuous monitoring of characteristic harmonic impedances. The proposed method can accurately calculate location of faults along the line, and estimate additional valuable information, such as fault resistance. The validity of the proposed method is evaluated by a wide range of fault scenarios using the CIGRE high‐voltage direct current benchmark model, simulated in PSCAD/EMTDC and codes written in MATLAB software environments. It will be shown that the proposed protection method sounds promising, and can serve as an excellent backup option in the case of primary protection malfunction.

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Section: Comparison To Similar Studies and Discussionmentioning

confidence: 99%

Novel pilot protection scheme for line‐commutated converter high voltage direct current transmission lines based on behaviour of characteristic harmonic impedances

Marvasti

Mirzaei

Golshan

2020

IET Generation Trans & Dist

View full text Add to dashboard Cite

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“…The power industry requires a dramatic safe and stable operation [3][4][5]. One of the crucial tasks of HVDC system is to accurately and reliably identify transmission line faults [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Voltage Correlation Based Single Pole-to-Ground Fault Detection of MMC-HVDC Transmission Line

Shu

Yang

et al. 2021

IEEE Access

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Through analysis of various fault voltage characteristics of modular multilevel converter high voltage direct current (MMC-HVDC) transmission system, it shows that the positive and negative voltage relationships of direct current transmission lines with single pole-to-ground faults are obviously different from other faults. Hence, Pearson correlation coefficient is used to describe the degree of difference in this work. In the case of single pole-to-ground fault, correlation coefficient is positive and close to 1, while as for other failures, correlation coefficient is negative and close to -1. This paper analyzes the mechanism of correlation coefficient to withstand transition resistance and verifies the effectiveness of the proposed method under high resistance grounding fault. A novel scheme is proposed by combining the quantity sum of voltage variation characteristics, which can effectively identify fault pole. The proposed scheme needs smaller time window and owns high efficiency, as well as great robustness to transition resistance.INDEX TERMS MMC-HVDC transmission, High resistance ground fault, Pearson correlation coefficient, fault detection.

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“…Li and Tan [22] propose a protection scheme based on the polarity of the fault current detected at both ends of the line. Yang et al [23] propose a DC line protection scheme based on resonance frequency. The scheme mainly consists of a fault discrimination criterion and a faulty pole selection criterion.…”

Section: Introductionmentioning

confidence: 99%

Identification between internal and external faults of UHVDC transmission lines based on sequential overlapping derivative transform of voltage transient

Shu

Jiang

Wang

et al. 2020

IET Generation, Transmission & Distribution

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Resonance frequency‐based protection scheme for ultra‐high‐voltage direct‐current transmission lines

Cited by 18 publications

References 36 publications

Novel pilot protection scheme for line‐commutated converter high voltage direct current transmission lines based on behaviour of characteristic harmonic impedances

Novel pilot protection scheme for line‐commutated converter high voltage direct current transmission lines based on behaviour of characteristic harmonic impedances

Voltage Correlation Based Single Pole-to-Ground Fault Detection of MMC-HVDC Transmission Line

Identification between internal and external faults of UHVDC transmission lines based on sequential overlapping derivative transform of voltage transient

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