A transformer substation three-phase linear generalized state estimation method, comprising: establishing a linear measurement equation and an on-off state pseudo measurement equation based on split-phase zero impedance network by using three-phase multisource real-time data from a measurement and control device, phasor measurement unit and protective device to participate in the state estimation together; identifying bad data with the maximum residual error method, and simultaneously identifying topology errors. The method improves data redundancy and calculation reliability for state estimation and eliminates the need for iterative calculation, and resolves the bad data and topology error within the transformer substation, thus providing more accurate basic data and reducing state estimation calculation for a regulation and control center.
TRANSFORMER SUBSTATION THREE-PHASE LINEAR GENERALIZED STATE ESTIMATION METHOD