This paper proposes a fully distributed robust state-estimation (D-RBSE)method that is applicable to multi-area power systems with nonlinearmeasurements. We extend the recently introduced bilinear formulation of stateestimation problems to a robust model. A distributed bilinear state-estimationprocedure is developed. In both linear stages, the state estimation problem ineach area is solved locally, with minimal data exchange with its neighbors. Theintermediate nonlinear transformation can be performed by all areas in parallelwithout any need of inter-regional communication. This algorithm does notrequire a central coordinator and can compress bad measurements by introducinga robust state estimation model. Numerical tests on IEEE 14-bus and 118-busbenchmark systems demonstrate the validity of the method.
展开▼
