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The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

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Title	A Study on the Voltage Stability Control Scheme using Real-time Monitoring Data
Authors	이윤환(Lee, Yun-Hwan)
DOI	https://doi.org/10.5370/KIEEP.2017.66.4.206
Page	pp.206-212
ISSN	1229-800X
Keywords	Voltage instability ; Voltage stability margin ; Real time Monitoring
Abstract	In this paper, using the power system information obtained from real-time monitoring device, to analyze the voltage stability margin index and described the voltage stability control scheme for voltage stability enhancement. Based on the utilization of the voltage stability monitoring index based on local information provided by the PMU(Phasor Measurement Unit), the purpose of the plan is to control the system stably in real time. In order to apply the load control scheme, the voltage stability margin is calculated using the data acquired through the PMU installed in each load bus. If the voltage drops below a certain level, load control is performed for each. The effectiveness of the voltage stability control measures is applied to the actual KEPCO system to analyze the effectiveness.

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