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Multiple Bad Data Processing using Binary PSO Algorithm Based on PC Cluster System

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Executive Summary

In power systems operation, state estimation takes an important role in security control. For the state estimation problem, the Weighted Least Squares (WLS) method and the fast decoupled method have been widely used at present. Especially when bad data are mutually interacting, the detecting of multiple bad data may be difficult to handle, since the normalized or weighted residuals may become faulty. Then the problem of detecting bad data is considered as a combinatorial decision procedure. In this paper, the binary Particle Swarm Optimization (PSO) is used for the detecting of multiple bad data in the power system state estimation. The PSO, like other meta-heuristic algorithms, can handle constrains that would be troublesome in classical mathematical approach.

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