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This paper proposed an enhanced real-time state estimation using Iterative Extended Kaiman Filtering (IEKF). The IEKF estimated state variables based on past state variables. Largest Normalized Residual Test (LNRT) was integrated with IEKF for bad data detection. A comparison with the conventional Weighted Least Squares (WLS) was also investigated using the IEEE 14 bus test system simulated in MATLAB...
The sensitivity threshold, using largest normalized residual test, was often chosen based on past experience without proper technical understanding. Hence, the aim of this paper was to systematically investigate the variation of the sensitivity threshold when bad data of various magnitudes were individually injected into each measurement. Subsequently, the relationship between bad data and sensitivity...
Overvoltage is a concerning issue among Gulf Cooperation Council (GCC) nations during the winter light load period. This paper presented a review of the recent reactive compensation studies conducted by Oman Electricity Transmission Company (OETC) for the Main Interconnected System (MIS) of the Sultanate of Oman, regarding to its new 400 kV transmission systems. Discussions about challenges and possible...
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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