A New Single Ended Fault Location Technique Using Travelling Wave Natural Frequencies

Linyong, WU; He, Zhengyou; Qing-quan, Qian

doi:10.1109/appeec.2009.4918078

Cited by 15 publications

(13 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

166

View full text Add to dashboard Cite

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.

show abstract

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

166

View full text Add to dashboard Cite

show abstract

“…In [11], the relation between the dominant natural frequency and the line length when the system impedance is infinite and zero is illustrated, respectively. As shown in Figure 1 terminal is open, the fault traveling wave will inter reflect between the fault point and system terminal.…”

Section: Natural Frequencies Of a Two-conductor Transmission Linementioning

confidence: 99%

“…A single-ended fault location method based on traveling wave natural frequencies has been proposed in paper [11,12]. Fault location can be determined without any wave-front identification using the dominant component of the traveling wave spectra, the line parameters and the boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

A traveling wave natural frequency-based single-ended fault location method with unknown equivalent system impedance

Chen

2015

Int. Trans. Electr. Energ. Syst.

View full text Add to dashboard Cite

SUMMARYSingle-ended traveling-wave fault location methods have difficulties in identifying the incident traveling wave and its corresponding reflection from the fault point. Thus, the algorithms' accuracy is always affected by wave-front identification. In this paper, a novel single-ended fault location method based on traveling wave natural frequencies is proposed for transmission line. The key of this method is to extract natural frequency and to achieve system parameters, of which system equivalent impedance is difficult to obtain accurately in practical application. By means of analyzing the influence mechanism of system impedance in the existing location algorithms based on natural frequencies, and assuming that the system resistance and inductance are parameters to be identified, a nonlinear objective function is constructed by several natural frequencies, then its local optima is solved by Nelder-Mead search algorithm to get the computing impedance. The correct system reflection angle under corresponding frequency can be attained by this computing impedance and accurate fault location can be finally estimated. The reliability and adaptability of the proposed method are verified by PSCAD/EMTDC-based simulation. Fault location result is independent of fault distance, fault type and transition resistance; meanwhile, during the computing process the accuracy of fault location can be evaluated.

show abstract

“…Nevertheless, the research focuses on using low-frequency electrical information compared with travelling waves information, like power-frequency voltages and currents. However, actually traveling wave information has already been utilised for many purposes in power system, like travelling wave fault location and travelling wave protection [9][10][11]. These applications have performed well in transmission system.…”

Section: Introductionmentioning

confidence: 99%

Travelling waves‐based identification of sub‐health condition of feeders in power distribution system

Shi

et al. 2018

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

A New Single Ended Fault Location Technique Using Travelling Wave Natural Frequencies

Cited by 15 publications

References 6 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

A traveling wave natural frequency-based single-ended fault location method with unknown equivalent system impedance

Travelling waves‐based identification of sub‐health condition of feeders in power distribution system

Contact Info

Product

Resources

About