Solving state estimation in power systems by an interior point method

A linear programming formulation is employed to solve the static state esti mation problem in power systems using the primal-dual predictor-corrector a lgorithm. This has been selected because it has emerged as an efficient alg orithm that makes the direction search toward the optimal point easy. The t echnique was applied successfully into several power systems when simultane ous gross errors were considered. Results are presented showing that this a lgorithm exhibits a good performance under critical measurement errors. (C) 2000 Elsevier Science Ltd. All rights reserved.