Optimization of PMU placement by performing observability analysis

Wide area monitoring system (WAMS) recognizes the condition, quality and stability of various parts of the power transmission network with the help of advent monitoring and measuring equipment. Phasor measurement units (PMUs) have emerged as vital devices for wide-area monitoring systems. Now a day, the optimal placement of PMUs for maintaining the observability of the whole network and providing adequate and reliable communication between them are challenging problems. A novel algorithm is proposed in this paper to identify optimal placement of PMUs by performing observability analysis with reduction in computational burden. This paper includes the optimal PMU placement algorithm and the degree of observability of each bus according to the PMU locations and its applications on IEEE 14 bus system. The simulation work has been performed on Orissa power grid network to show the effectiveness of the proposed methodology.