Fault transient analysis in microgrid using discrete wavelet transform

Zhang, Long; Niu, Geng; Qi, Zhi Ping; Gao, Guo Hua; Xu, Yong

doi:10.1109/drpt.2015.7432381

Cited by 3 publications

(2 citation statements)

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“…In the event of a fault occurrence in the grid, traveling waves that start from the fault location and spread through the grid occur [13]. The greater the distance between the location of the fault and the measuring points, the greater the time required for the traveling waves to reach the measuring points.…”

Section: Traveling Waves' Reaching Measurement Pointsmentioning

confidence: 99%

“…In a study where discrete-time wavelet transfer function was used, current and voltage values measured from the microgrid were processed via cubic spline interpolation method and thus the magnitude of transient fault signals was increased. Afterward, by using these signals in Karrenbauer transformation and 4th level db10 wavelet transform, fault characteristics were identified [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Traveling Wave and Wavelet Based Fault Location Detection in Microgrids

Küçüker

Korkmaz

2019

Sakarya University Journal of Science

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Demand for renewable energy sources is increasing day by day. With the increase in demand for renewable energy sources, the use of microgrids also increases. Microgrids, compared to traditional grids, have a more complex structure and need more complex protection functions. In this study, a traveling wave-based fault location detection system for microgrids with loop distribution systems (looped microgrids) was developed. In traveling wave-based fault location, measurements taken from one or both ends of a line are used. However, in looped grids, lines do not have a beginning or an end. In order to allow the use of traveling wave-based protection in loop distribution systems, the system is separated into three zones. For each three separate zone a type D fault locator method was applied, and by ensuring that, these algorithms worked in accordance, fault location detection was carried out in a looped microgrid.If the DGs on the microgrid generate more energy than consumers' energy demand, this accessional

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Section: Traveling Waves' Reaching Measurement Pointsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%