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Reactive Power Traceable System based Vulnerable Areas Detection for Reactive Power
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 Title & Authors
Reactive Power Traceable System based Vulnerable Areas Detection for Reactive Power
Choi, YunHyuk; Bae, MoonSung; Lee, Byongjun;
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The paper analyzes reactive power flow characteristic in power system by reactive power tracing. In addition, virtual buses are inserted in the algorithm to consider losses of transmission lines, and shunt capacitor treated as a reactive power generator. The results of simulation are analyzed by two points of view. The one is load’s point of view and another is generator’s point of view. Classic purpose of the reactive power tracing consists in the reactive power pricing. However, it is significantly used to select vulnerable area about line outage in this paper. To find the vulnerable area, reactive power tracing variations between pre-contingency and post-contingency are calculated at all load buses. In heavily load area, buses which has highest variation become the most vulnerable bus. This method is applied to the IEEE 39-bus system. It is compared with voltage variation result and VQ-margin to verify its effect.
Reactive power tracing;Vulnerable area;Proportional sharing rule;Power flow;Virtual bus;
 Cited by
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