PMU deployment approach for maximum observability considering its potential loss

Deploying a limited number of Phasor Measurement Units (PMUs) into the system to get full buses observability considering disturbance like communication failure, line outages is quite a challenging task. This paper proposes a possible problem solving approach by optimizing PMU location for obtaining maximum buses observability even when considering the potential loss of PMUs. With the knowledge of optimal PMU placement for topological observability under normal operating condition, the proposed method requires the number of PMUs to be one greater than the minimal requirement. The implemented model further considers conventional measurements for economic solution. The proposed approach is applied in four IEEE test systems including 2383 western polish to testify its effectiveness. The optimized deployment scheme also verifies the ability of approach to maximize the observable buses by installed PMUs.