Optimal locations of Power Quality Monitors Considering Voltage Sag Constraints. (Dept. E. )

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This paper addresses the problem of identifying the optimal locations for power quality monitors (PQMs). A proposed approach is based on integer linear programming (ILP) to solve PQMs problem. It gives the minimum number of PQMs and their locations at variable voltage threshold values. The proposed method solves the PQMs problem for different network configurations that ensures all fault positions are captured. Performance characteristics prove that the proposed method is a competitive one compared to other methods in the literature and guarantee complete observability requirements of the whole power system. The method is efficiently applied to IEEE 30-bus network. The proposed method is implemented in MATLAB environment.