Optimal voltage sag monitor locations

Many methods have been proposed to detect the occurrence of voltage sag in the utility system. By using a suitable method, a minimum number of power quality monitor can be allocated to monitor the entire system. This paper focuses on a monitor positioning program to determine the optimal number of monitors and to decide their locations for a given distribution system. In order to find the best location of the monitor, voltage magnitude during fault with further analysis has been used. The monitor location is decided to ensure that, voltage sag that occurs will be recorded by three different monitor locations. To validate the proposed method, it is tested with the IEEE 30-bus system.