A novel technique for optimal PMU placement with effects on dynamic state estimation

Abstract

In this paper a new priority based elimination technique (PBET) has been presented to obtain minimum number of phasor measurement unit (PMU) in power system network for full system observability and based on optimal PMU location state estimation (SE) has been done. Power system network should completely observable hence it's required to have all bus data in real time. It is not neither necessary to have PMUs at each buses in network nor economical. The proposed method is based on simple algorithm without having any cost function. Four steps procedure has been discussed in detailed for IEEE-14, IEEE-24 and IEEE-30 bus system and results are compared with other techniques. State estimation has been discussed for IEEE-14 bus system and normalized errors are obtained with optimally placed PMU and other configuration of PMU. Results show that PBET is compatible with other techniques of PMU placement.