A fault location scheme based on spectrum characteristic of fault-generated high-frequency transient signals

Huang, Shaofeng; Wang, X. G.

doi:10.1109/pes.2009.5275918

Cited by 10 publications

(5 citation statements)

References 11 publications

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“…The natural frequency concept can be seen in [49] which uses the distributed parameter model and explains the relation between the natural frequency and fault distance when the impedance of the system is zero or infinite. In [50][51][52][53], the natural frequency-based protection scheme is applied to locate the fault in an AC transmission line, where less transient energy is present if the fault occurs when the voltage crosses or closes to the zero point. The extraction of natural frequency from the fault transient signal is complicated.…”

Section: Natural Frequency Based Methodsmentioning

confidence: 99%

A comprehensive review of DC fault protection methods in HVDC transmission systems

Muniappan

2021

Prot Control Mod Power Syst

167

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High voltage direct current (HVDC) transmission is an economical option for transmitting a large amount of power over long distances. Initially, HVDC was developed using thyristor-based current source converters (CSC). With the development of semiconductor devices, a voltage source converter (VSC)-based HVDC system was introduced, and has been widely applied to integrate large-scale renewables and network interconnection. However, the VSC-based HVDC system is vulnerable to DC faults and its protection becomes ever more important with the fast growth in number of installations. In this paper, detailed characteristics of DC faults in the VSC-HVDC system are presented. The DC fault current has a large peak and steady values within a few milliseconds and thus high-speed fault detection and isolation methods are required in an HVDC grid. Therefore, development of the protection scheme for a multi-terminal VSC-based HVDC system is challenging. Various methods have been developed and this paper presents a comprehensive review of the different techniques for DC fault detection, location and isolation in both CSC and VSC-based HVDC transmission systems in two-terminal and multi-terminal network configurations.

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Section: Natural Frequency Based Methodsmentioning

confidence: 99%

A comprehensive review of DC fault protection methods in HVDC transmission systems

Muniappan

2021

Prot Control Mod Power Syst

167

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“…In this figure, R denotes the relay installed at bus A. The main parameters of the tested network are given in Table 3 [42]. Current signals at busbar A are first transformed into modal components and then, their modal show that the proposed algorithm is able to identify the fault type and faulted phase correctly and accurately.…”

Section: Performance Of the Proposed Methods For Transmission Linementioning

confidence: 99%

Fault classification and faulted phase selection for transmission line using morphological edge detection filter

Salehi

Namdari

2018

IET Generation, Transmission & Distribution

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In this paper, a novel algorithm for detecting and classifying faults in transmission lines is proposed. The algorithm is based on mathematical morphology (MM) and initial current traveling waves. A new mathematical edge detection (MED) filter to extract the transient features from the original fault signal is designed. This MED filter can fast and accurately detect the arrival time and polarity of traveling waves in all conditions. The appropriate criteria of fault classification and faulted-phase selection are introduced based on polarity of initial current traveling waves. The simulations based on the electromagnetic transients program (EMTP) and MATLAB have been done to evaluate the validity of the proposed algorithm.

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“…The system is depicted in Figure 2. The parameters of the simulated 500kV transmission line having 350 km long are listed in Table 3 [20]. From the modeling view point, transient fault can be modeled as high current primary arc during the fault period and low current secondary arc.…”

Section: Test Systemmentioning

confidence: 99%

A novel wavelet packet transform based fault identification procedures in HV transmission line based on current signals

Adly

El‐Sehiemy

Elsadd

et al. 2019

IJAPE

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<p>This paper presents an adaptive fault identification algorithm bases on wavelet packet transform (WPT) for two-terminal power transmission lines. The proposed scheme performs four functions which are the fault detection, fault classification, distinguishing among the temporary and the permanent faults, and detection of the arc extinguish instant. The presented algorithm only uses the measured current at one terminal reducing the required cost. Also, it can mitigate the error resulting from the load variations via updating the presetting value. Consequently, it does not need retesting under changing the transmission system configurations. The proposed scheme is deduced in the spectral domain and depended on the application of the WPT. The db6 wavelet packet is used for decomposing the faulty phase current waveform (level 7) to get the energy coefficients. The presented algorithm is assessed under various fault conditions such as fault distances, inception angles, and faults nature via simulating different secondary arc models via using ATP/EMTP. The obtained results are investigated and evaluated.</p>

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A fault location scheme based on spectrum characteristic of fault-generated high-frequency transient signals

Cited by 10 publications

References 11 publications

A comprehensive review of DC fault protection methods in HVDC transmission systems

A comprehensive review of DC fault protection methods in HVDC transmission systems

Fault classification and faulted phase selection for transmission line using morphological edge detection filter

A novel wavelet packet transform based fault identification procedures in HV transmission line based on current signals

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