A New Optimal Meter Placement Method for Obtaining a Transmission System Indices

This paper introduces an improved optimal monitoring program which identifies optimal locations of meters. First, analytical expressions for the calculation of voltage sag magnitude due to the faults at every point of a transmission system are derived. Balanced and unbalanced faults are considered. Then an integer programming-based modeling is proposed for choosing the optimal locations of power quality meters. A genetic algorithm is used to solve the optimization problem. Optimization problem modeling and estimation of sag performance in non-monitored buses are made with high precision. The flexibility of the method has been increased by considering the fault positions on the lines as well as buses. The computer algorithm is applied to a real transmission network and the results show the method is successful.