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Single-phase grounding fault identification and fault line selection for compensation grid
Proceedings of The 7th International Power Electronics and Motion Control Conference, 2012A new grounding fault line selection method based on small-world network theory is proposed in order to solve the problems existing in grounding fault line selection device of compensation grid, such as that the correct rate of grounding fault line selection is not high and the selection device cannot recognize high-impedance and low-impedance ...
null Chen Zhongren +2 more
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Single-Phase Ground Fault Traveling Wave Line Selection Method and Line Selection Device Field Test
2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018In this paper, the grounding line selection technology is applied to the field. Under a substation model, the SL-0l grounding line selection device is used for small current system, and multiple tests are carried out in the field, and the corresponding waveform analysis is carried out.
Shuping Liang, Zikun Zhang
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A New Method for Fault line Selection of Four-Parallel Transmission Lines
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Based on the theory of twelve sequence components, this paper analyzes the single circuit line fault characteristics of four-parallel transmission lines on the same tower. By use of the relationship of different amplitudes and phases between each sequence components, a new method is proposed for fault line selection of four-parallel transmission lines.
Peng Xu +4 more
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Faulted Phase Selection for Half-Wavelength Power Transmission Lines
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018In this work, a novel faulted phase selection algorithm is proposed to be used for distance protection applied to half-wavelength power transmission lines. These lines represent an alternating current solution for very-long point-to-point interconnections as an alternative to HVDC.
Renzo G. Fabián Espinoza +1 more
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Incremental Power Improves Relay Selectivity to Transmission Line Faults
Journal of The Institution of Engineers (India): Series B, 2018A research work published in 2014 reported a novel relaying principle for protection of transmission lines using signum function of instantaneous power flows at the two ends of the line. Subsequently, a detailed study of this relaying principle to evaluate its selectivity (sensitivity to detect all internal faults and stability on external faults and ...
Abdul Waheed Kumar +2 more
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Traveling waves based fault line selection using sparse representation
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019Traveling wave method has been proved to be effective in fault line selection of power distribution system with the neutral non-effectively grounded. However, it can be easily disturbed by non-faulty traveling wave when selecting the line. For this reason, this paper proposes a new traveling wave line selection method based on sparse representation, in
Wen Xu +3 more
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Attribute selection for fault location recognition in transmission lines
2006 IEEE Power Engineering Society General Meeting, 2006After a severe disturbance due to an insulation failure in a transmission line, the precise fault location is a critical problem for the maintenance crew. In order to avoid further economical and social costs, fault diagnosis has to be performed as soon as possible.
S.M. de Souza +2 more
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Fault Phase Selection Method for Half-Wavelength Transmission Lines
2019 IEEE 3rd International Electrical and Energy Conference (CIEEC), 2019In this paper, a novel faulted phase selection scheme is proposed for time delay longitudinal protection and distance protection applied to half-wavelength power transmission lines. The authors describe the principle of a faulted phase selection scheme for half-wavelength power transmission lines using the fault superimposed voltage and current sampled
Yue Li, Zhenyu Xu, Tao Zheng
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Fault line selection method of DC distribution network based on transient current fault component
2020 7th International Forum on Electrical Engineering and Automation (IFEEA), 2020When a unipolar ground fault occurs in a medium-voltage flexible DC distribution network based on a two-level converter (voltage sourced converter, VSC)., the fault current will rise rapidly, and it is necessary to quickly find out the line where the fault occurs.
GAO Shuping +3 more
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Fault line selection for single-phase earthed fault based on injected active component
2011 International Conference on Electrical and Control Engineering, 2011Concerning the current situation of fault line selection of single phase earthed fault in small-current grounded system, plus with analysis of the advantage and disadvantage of currently used in line selection techniques, a method which makes use of neutral point resistant to discriminate the fault line and the normal line during the single-phase ...
Ying Zhang, Huifen Zhang
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