Published Paper Details:

Monitoring of Distribution networks is the need of the day that requires high degree of precision owing to the dynamic nature of the networks. These networks are very complex in terms of number of nodes, their interconnections, closely distributed voltage levels and angles and also lack of proper documentation. A highly accurate monitoring system needs to be in place to assess the situation and act dynamically in times of emergencies. In order to achieve this, micro-phasor measurement unit (?PMU) is being used in distribution network environment. These devices being complex and costly, optimal placement plays a vital role in the economics of monitoring system. In this work, Depth First Search algorithm has been used to determine preferred locations of placing ?PMUs and the remaining are optimally determined by Particle Swarm Optimization (PSO). The location of ?PMUs at buses with distributed generation and buses adjacent to radial buses makes it different from the algorithms used for PMU allocation in transmission systems. System Observability Redundancy Index (SORI) is used to determine the optimal solution out of all possible PMU placement sets. The sets having same number of ?PMUs with high SORI value is being chosen as the optimal set. The optimal ?PMU placement problem is implemented on IEEE 33 bus radial distribution feeder and on IEEE 85 bus radial distribution test feeders integrated with distributed energy resources. The optimal placement strategies of PMU are also examined for reconfigured distribution systems that aim at reducing the power loss in the system.