An Analytical Zero Sequence Method to Locate Fault in Distribution Systems Rich in DG

Penido, Débora Rosana Ribeiro; Araujo, Leandro Ramos de; Rodrigues, Victor T. S.; Nascimento, Kelvin Bryan do

doi:10.1109/tsg.2022.3141207

Cited by 9 publications

(2 citation statements)

References 33 publications

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“…Under fault conditions, an underground cable causes a large amount of distributed capacitor current to return to the distribution network, which affects the accuracy of the fault location. References (Buzo et al, 2021;Penido et al, 2022) proposed fault distance estimation methods for active distribution networks based on wide area communication methods but did not consider the line capacitance effect on the ground. Reference (Li et al, 2021) considered the capacitance effect of a line to the ground but ignored the influence of the load branch.…”

Section: Introductionmentioning

confidence: 99%

Low-voltage characteristic voltage based fault distance estimation method of distribution network

Huang,

He,

Wang

et al. 2024

Front. Energy Res.

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The traditional medium-voltage distribution network fault location method uses mainly the voltage and current measurements of the medium-voltage side, which results in problems such as high installation costs at the measuring points and complicated postoperation and maintenance work. Therefore, a fault location idea based on the distributed measurement of low-voltage side voltage is proposed in this paper. First, the characteristic voltage is adaptively selected according to the fault type. Second, the suspected fault section is determined by comparing the characteristic voltage amplitude of each measuring point. Third, the fault section is located using the section unit characteristic voltage drop defined for each suspected fault section. Finally, fault distance estimation is achieved based on the voltage difference matrix and characteristic voltage analysis. This method achieves accurate fault distance identification based on the distribution difference of the characteristic voltage of the low-voltage side under the fault state. This work provides a new economical and practical idea for determining the fault locations of distribution networks. The effectiveness of this method is evaluated by considering a 10 kV distribution network in Guangdong Province built in PSCAD/EMTDC.

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Section: Introductionmentioning

confidence: 99%

Low-voltage characteristic voltage based fault distance estimation method of distribution network

Huang,

He,

Wang

et al. 2024

Front. Energy Res.

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“…For instance, the sensitivity problem concerns the power, selectivity, recloser, and islanding problems. The current differential is performed for monitoring and classification part of units between load and DG, which are energised during fault occurrences [19,20]. There are issued methods for protection with DG connection which have the type of bidirectional and islanding detection [21,22].…”

Section: Introductionmentioning

confidence: 99%

Impact on Protective Device Sequence of Operation in Case Distributed Generation Integrated to Distribution System

et al. 2023

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This study aims to evaluate the impact of the distributed generator (DG) connection to the grid. The simulated results present the parameters of the system required to install DG on the end of the main distribution feeder. Various parameters, such as voltage, current, and protective relay coordination are modelled after the actual provincial electricity authority (PEA) distribution system. Various case studies compared the coordination without and with DG connections to the grid by finding the difference of protective devices. The results indicate that the malfunction can be fixed in order of priority protective devices, which operate according to the parameter setting. Additionally, the coordinate functions between the recloser and fuse devices in both phase and ground configurations in the operating zone prevented the drop-out fuse melting or burning out. Based on the result, this problem is fixed by providing a directional recloser device and increasing the fuse-link rated with 40k installation for replacing the conventional sizing, which can improve the performance in case of fault occurrence to investigate the reliability and stability of the distribution system.

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An enhanced method for fault location in distribution systems based on optimal power flow

Cavalari,

Martins,

Penido

et al. 2024

International Journal of Electrical Power & Energy Systems

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An Analytical Zero Sequence Method to Locate Fault in Distribution Systems Rich in DG

Cited by 9 publications

References 33 publications

Low-voltage characteristic voltage based fault distance estimation method of distribution network

Low-voltage characteristic voltage based fault distance estimation method of distribution network

Impact on Protective Device Sequence of Operation in Case Distributed Generation Integrated to Distribution System

An enhanced method for fault location in distribution systems based on optimal power flow

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