변전소 상태변수 추정에 관한 연구

A Study on the State Estimation of a Substation

As the power system automation, especially the substation automation is currently a major issue, it has been widely studied. Since a measured value usually has an error that results in the communication process and the characteristics of a measurement device mainly depending on the reliability. The accuracy and reliability of measured values at a substation is an important factor for substation automation. In this paper, a state estimation algorithm is proposed for domestic 154kV/22.9kV distribution substations, and the results showed promising application.