A Method for Measuring and Adjusting the Detuning of Resonant Grounding Systems With Transient Information After Arc Extinction

Zhang, Fan; Yongduan, Xue; Li, Guang; Xu, Bingyin

doi:10.1109/tpwrd.2022.3194946

Cited by 3 publications

(5 citation statements)

References 13 publications

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“…⃝ The first grounding is a continuous stable grounding, and the second grounding is a continuous stable grounding. 2 ⃝ The first grounding is an intermittent arc grounding, and the second is an intermittent arc grounding. 3 ⃝ The first grounding is an intermittent arc grounding, and the second is a continuous stable grounding.…”

Section: Simulation Testingmentioning

confidence: 99%

“…Ref. [2] uses the transient measurement information after arc extinction to determine the operating state of the distribution network. Ref.…”

Section: Introductionmentioning

confidence: 99%

“…[7] uses the transient voltage and current variations that are generated by the regulation of the arc suppression coil to achieve fault line selection. (2) The passive method is divided into the steady-state quantity method and the transient quantity method, which only uses the electrical quantity of the fault process itself. The amount of equipment renovation is small, but it has been widely used in the field.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Novel Method for Line Selection for Cross-Line Two-Point Successive Grounding Faults Utilizing Transient and Steady-State Information

Wang,

Liu,

Zhang

et al. 2024

Energies

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In order to improve the performance of an arc suppression coil grounding system in handling cross-line two-point successive grounding faults (CTSGs), the applicability of the transient quantity method and the steady-state quantity method for assessing CTSGs is analyzed. Then, a novel method for line selection for CTSGs was proposed, which comprehensively utilizes transient and steady-state information. Specifically, this method adopts a continuous line selection process, with priority given to the transient quantity method, and a supplementary line selection process, with priority given to the steady-state quantity method. After accurately selecting some faulty lines, such lines are tripped, and then, the process proceeds with continuous line selection again. When the number of cycles exceeds the set value, and the fault line cannot be completely cut off, they are tripped one by one according to the degree to which they are approaching the steady-state method criterion, from large to small. Furthermore, in response to the dramatic increase in computing volume that is caused by the continuous application of the transient method in on-site applications and the impact of current transformer accuracy on the steady-state method, this paper proposes corresponding solutions. PSCAD simulation, full-scale tests, and field recording data tests verify that this paper’s method can accurately detect a CTSG.

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Section: Simulation Testingmentioning

confidence: 99%

“…Ref. [2] uses the transient measurement information after arc extinction to determine the operating state of the distribution network. Ref.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Method for Line Selection for Cross-Line Two-Point Successive Grounding Faults Utilizing Transient and Steady-State Information

Wang,

Liu,

Zhang

et al. 2024

Energies

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show abstract

“…The voltage level of system is 10 kV, the power frequence is 50 Hz, and there are a total of 4 lines in the system, including cable lines, overhead lines, and cable-overhead hybrid lines, as shown in Figure 4. The positive (negative) sequence and zero sequence parameters of different types of lines are the same as in previous research [8] . The simulation frequence is 50 Hz.…”

Section: Matlab/ Simulink Simulationmentioning

confidence: 99%

“…And the resonant frequence after arc extinction is close to the power frequence (For overcompensated system, the resonant frequence is slightly higher than the power frequence. For an uncompensated system, the resonant frequence is slightly lower than the power frequence) [8] .…”

Section: Introductionmentioning

confidence: 95%

A Method for Judging the Arc-Extinction Time of Resonant Grounding System Based on Frequence Difference

Zhang

Yongduan

Zhao

et al. 2023

J. Phys.: Conf. Ser.

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In the resonant grounding system, the accurate judgment of arc-extinction time has guiding significance for the line selection of grounding fault, the evaluation of the arc suppression effect, and the extraction and utilization of transient information after arc extinction. Aiming at the single-phase grounding fault of resonant grounding system, this paper analyzes the frequence change characteristics before and after arc extinction. It is found that the frequence of zero-sequence electrical quantity before arc extinction is power frequence, and it changes after arc extinction. It is used to construct single-frequence methods and dual-frequence methods for judging arc-extinction time. As a tool for dynamic frequence measurement, SOGI-FLL is utilized to realize the engineering application of the method for judging arc-extinction time. The method’s accuracy is proved by Matlab/Simulink simulation and field test.

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A review of single-phase-to-ground fault regulation devices for distribution networks

Hou,

Guo,

et al. 2024

Renewable and Sustainable Energy Reviews

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A Method for Measuring and Adjusting the Detuning of Resonant Grounding Systems With Transient Information After Arc Extinction

Cited by 3 publications

References 13 publications

A Novel Method for Line Selection for Cross-Line Two-Point Successive Grounding Faults Utilizing Transient and Steady-State Information

A Novel Method for Line Selection for Cross-Line Two-Point Successive Grounding Faults Utilizing Transient and Steady-State Information

A Method for Judging the Arc-Extinction Time of Resonant Grounding System Based on Frequence Difference

A review of single-phase-to-ground fault regulation devices for distribution networks

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