Optimal Placement of PMUs in Algerian Network using Grey Wolf Optimizer

摘要

The Phasor Measurement Unit (PMU) is a contemporary metering device which is installed in power system network to enable its monitoring and control. Indeed, the PMUs are the most accurate and advanced time synchronized technology measure devices which allow providing on real time the measurements of the voltages at currents phasors of the buses in which these devices are placed. However, the number of the PMUs and their placements need to be optimized to fulfil the techno-economics requirement. In this paper, the new algorithm of grey wolf optimizer (GWO) is investigated to solve the problem of optimal placement of the PMUs considering the main aim of ensuring the power system observability in real time. Where, the optimal placement of PMUs problem is formulated such that the number of the installed PMU is minimized. For the validation of the proposed application of the GWO algorithm in ensuring the optimal placement of PMUs, three tested have been performed in this paper, two tests on IEEE-14 bus and 30 bus, and another test on the Algerian real power system network of 114-bus. The simulation results of the application of the GWO algorithm show that the obtained PMU optimal placements can guarantee the high observability of the states of the three tested power network systems.