Abstract
In this paper, an efficient and comprehensive hybrid intelligent technique for the optimal placement of phasor measurement units (PMUs) is proposed to minimize the number of PMU installation subjected to full network observability. Three main purposes of PMUs output synchronous measurements are monitoring, control, and protection of power system. We have combined Binary Imperialistic Competition Algorithm (BICA) and Genetic Algorithm (GA) for assuring complete observability under normal and single PMU loss or single line outage cases. Zero-injected buses which are transfer buses in the power system network are considered to obtain the best performance. They have capability to reduce the number of required PMUs for full observation of the power system network. The effectiveness of the proposed method is verified via 400 kV Khorasan network using MATLAB software environment. Experimental results show that minimum number of required PMUs and maximum bus observations can be achived by the proposed method.
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