Abstract
Phasor Measurement Unit (PMU) is a measurement devices capable of providing measurements with high accuracy, but due to its high cost it is desired to find the optimal placement for them. This paper tries to address the Optimal PMU Placement (OPP) for large power systems while including additional criteria like injection measurement, as well as, considering the Zero Injection Bus (ZIB) effect. The selected large power system is the Qatar Grid and the system is solved using Integer Linear Programming (ILP) techniques. The paper does not only focus on the number of PMU s required for full observability, it extends to take into consideration N−1 contingency. It also measures the ratio of conventional measurements to PMU s for the Qatar Grid in order to provide an estimate for this ratio. The paper is concluded with the obtained results as well as recommendations for practical application of OPP.
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