Incremental PMU placement considering reliability of power system network using analytical hierarchical process

This study presents a methodology for enhancing the observability of interconnected power network with the incorporation of component reliability for incremental phasor measurement units (PMUs) placement. Initially, multiple optimal solutions for complete observability have been determined with the use of genetic algorithm. An overall system reliability index has been proposed for the selection of the most suitable solution among the determined solutions. Furthermore, the ranking of the buses for PMU placement has been performed using the proposed reliability observability criteria. An index determined by series–parallel combinations of different components of the network has been used for this purpose. To achieve effective multi‐phasing of PMU placement analytical hierarchical process has been utilised. This strengthens the observability through most reliable buses during the initial phases. The proposed methodology is illustrated on IEEE 14‐bus and eastern region Indian power grid 90‐bus real system.