Reducing the Computational Complexity of Wide-Area Backup Protection in Power Systems

Wide-area backup protection (WABP) refers to the identification of faulted line amongst candidate lines by using sparse PMU measurements. This letter proposes a technique for reducing computational complexity WABP methods that employ superimposed-circuit concept. A proposition is presented and proved justify system equations pertaining every can be directly obtained from bus impedance matrix pre-fault power system. in contrast with existing requiring establishment as many distinct matrices number The applicability effectiveness proposed are verified conducting more than 20,000 simulations on IEEE 39-bus test