A recursive least-squares digital distance relaying algorithm

A new digital distance relaying algorithm based on the well-known theory of least-squares is developed, and the results of testing it using numerical siiiiulation are presented. The new technique estimates the distince to the fault and the fault resistance. To niinimiae the competiitional reqiiireinents uf the digital relay, a reeiirsive least-squares approach is used. Computer simulation restilts of [lie new least-squares algorithm seein promising, indicating that it should be considered for fiirther testing and evaluation.