Abstract
The Frequency Monitoring Network (FNET) provides a low-cost, easily deployable method for wide-area monitoring. FNET has the capability to realize long term, high density and continuous monitoring of large interconnected power systems. In effect, there are potentials for ground-breaking research on wide-area monitoring and control. In this paper, low frequency oscillations in the Eastern Interconnection (EI) are analyzed based on generation trips detected by FNET in 2007. The oscillation data were selected in a way such that their locations are distributed throughout the EI system. In addition, some preliminary statistical analysis of the dynamic characteristics is presented. Through illustrating the control method of system stability, it is shown that the analysis of oscillation mode shape distribution is very important. As an example, some preliminary simulation results are provided for the control of system low-frequency oscillation due to transmission line faults or other changes in system topology.
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