Zuo, Jian2014-03-142014-03-142008-03-26etd-04092008-161319http://hdl.handle.net/10919/26721Wide Area Measurements (WAMs) have been widely used in the energy management system (EMS) of power system for monitoring, operation and control. In recent years, the advent of synchronized Phasor Measurements Unit (PMU) has added another dimension to the field of wide-area measurement. However, the high cost of the PMU, which includes the manufacture and deployment fee, is a hurdle to the wide use of the PMU in power systems. Unlike traditional PMUs, the frequency monitoring network (FNET) developed by the Virginia Tech Power IT lab is an Internet—based, GPS—synchronized, wide-area frequency monitoring network deployed at the distribution level, providing a low-cost and easily deployable WAMs solution. In this dissertation, the research work can be categorized into two parts: FNET Design and Situation Awareness Algorithm Development.In CopyrightRecursive Discrete Fourier Transfer (RDFT)Event location estimationFNETMultiple Units based Frequency Deviation DetectioWide Area Measurement and Control (WAMC)Swing EquationTime Difference of Arrival (TDOA)Single Machine Infinite Bus (SMIB)Dissertationhttp://scholar.lib.vt.edu/theses/available/etd-04092008-161319/