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Lightly damped electromechanical oscillations are major operating concerns if failed to be detected at an early stage. This paper improved the existing extended complex Kalman filter (ECKF) technique of tracking electromechanical oscillations using synchrophasor measurements. The proposed algorithm adopted a distributed architecture for estimating oscillatory parameters from local substations. The...
Phasor Measurement Units (PMUs) is being implemented for on-line oscillation monitoring due to its advantages of enabling faster sampling and accurately measuring phasor information. Many modal analysis algorithms can be implemented due to this. However, bad parameter tuning or sampling at inappropriate intervals, though satisfying Nyquist-Shannon Sampling Criterion, can result into inaccurately estimating...
Wide area monitoring system (WAMS) using phasor measurement units (PMU) is being implemented for online oscillation monitoring using Prony analysis. However sampling at inappropriate intervals, though satisfying Nyquist-Shannon criterion, can still cause the Prony analysis to inaccurately estimate damping factors and oscillating frequencies. Hence, this paper investigates possible ways for checking...
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