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Modern interconnected power grid requires comprehensive and efficient on-line monitoring system to ensure the reliability and stability of the whole power system. This paper firstly introduces the structure and deficiency of traditional monitoring system. Then, relying on high precision operating parameters collected by Phase Measurement Unit (PMU), an improved on-line monitoring method is proposed,...
Wide-area measurement system can retrieval the real time dynamic and static information of the large scale power system under the same time reference, helping to resolve the problems of the dynamic analysis and control for an interconnected power system, especially the low-frequency oscillation. However, communication delay is a non-ignorable factor for the stability of wide-area control. In this...
The phasor measurement units (PMU) and wide-area measurement systems (WAMS) have been widely established in modern power systems to improve the monitoring of the system behavior as well as the system control. In this paper, an integrated scheme for the monitoring and detection of low-frequency oscillations has been developed, based on our extensive experience in using Prony algorithm for oscillation...
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