Uma nova abordagem para correção de erros grosseiros em estimação de estados utilizando algoritmo genético

This paper presents a new methodology for correcting gross errors in power distri- bution systems state estimation (SE). A SE algorithm is developed based on the Weighted Least Squares (WLS) using hybrid approach which non-synchronized measurements and PMUs (Phasor Measurement Units) are used together. At end of process, Normalized Residuals (NRs) calculated each measurement existence detected statistical analysis NRs. Suspicious identified by highest values calibration factor associated with suspected to estimate system correct errors. In order determine exact factors, formulation an optimization problem proposed, being solution provided genetic algorithm. Simulations conducted IEEE 33-bus test validate proposed method proving its efficiency robustness.