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This paper, proposes a new traveling wave-based fault location method for power transmission grids. This proposed method involves two stages: offline and online. At the offline stage, first, the transmission network is represented as a weighted graph and the shortest paths between each pair of sensors are determined. Then, the graph lines which are not located on the shortest paths are divided into...
In this paper the optimal placement of phasor measurement units to maintain the network observability in normal mode and considering the constraint installed on some buses has been studied. In addition to providing a suitable use of phasor measurement units, buses with high sensitivity have been considered, and optimal placement of the units considering the direct observability sensitive bus, observability...
Microgrids can provide economic and environmental benefits, but their performance poses great technical challenges in control, protection and energy management. Microgrids can be operated either grid-connected or islanded mode. Such dual configuration capability produces challenges on the design of the protection system. Fault current magnitudes will change depending on the microgrid operating mode...
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