1 Department of Energy Technology, The Faculty of Engineering and Science, Aalborg University, VBN2 Electric Power Systems, The Faculty of Engineering and Science, Aalborg University, VBN3 The Faculty of Engineering and Science, Aalborg University, VBN4 Huazhong University of Science and Technology5 Glyndwr University6 Huazhong University of Science and Technology7 Glyndwr University
Load flow transferring after an initial contingency is regarded as one of the main reasons of causing unexpected cascading trips. A multi agent system (MAS) based wide area protection strategy is proposed in this paper to predict the load flow transferring from the point of view of impedance relays, and prevent the unexpected relay operations accordingly. The variations of node injections during the post fault transient period will be also considered in the prediction algorithm. The power system of Eastern Denmark modeled in real time digital simulator (RTDS) will be used to demonstrate the proposed strategy. The simulation results indicate this strategy can successfully predict and prevent the unexpected relay operation caused by load flow transferring.
Ieee Power and Energy Society General Meeting, 2013
Cascading trips; Load flow transferring; Multi agent system; Wide area protection
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Ieee Power and Energy Society General Meeting
IEEE Power and Energy Society General Meeting, PES 2013