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Power system model integrity is essential to many planning and operation tasks to ensure the safety and reliability of electricity delivery. Inaccurate system models would result in unreliable assessment of system security conditions and cause large-scale blackouts such as the 2003 Northeast Blackout. This dictates a strong need for knowing the sensitivity of the model to errors in certain input variables...
Kepco has installed PMUs at three of its major transmission lines in 2009. An advanced algorithm, WAVI(Wide Area Voltage stability Index), has proposed in order to monitor the real-time voltage stability in metropolitan area of Korea. This paper presents a brief summary of the installation planning and provides details on results from the real-time measured data, which are obtained from those PMUs...
Through the development of phasor measurement units (PMU), various aspects of power system dynamic behavior could be monitored and diagnosed. Monitoring dynamic voltage stability becomes one of achievements we can obtain from PMUs. It is very important to select the method appropriate to the KEPCO system since there are many voltage stability indices. In the paper, we propose an advanced WAVI (wide...
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