Abstract
AbstractThis paper proposes a method for bad data analysis in power system measurement estimation using complex artificial neural network (CANN) based on the extended complex Kalman filter (ECKF). The proposed algorithm is better in noise immunity since the link weighting in the CANN can be automatically adjusted with trained data through the ECKF. Moreover, the CANN is quite suitable for complex training data such as complex power in a power system since its input and output performs a nonlinear mapping. Four systems including a 6‐bus system, the IEEE 30‐bus system, IEEE 118‐bus system, and a practical system are used as examples to verify the feasibility of the ECKF‐CANN approach. Results show the proposed algorithm has increased sensitivity in identifying gross measurement errors with respect to the standard ANN. Copyright © 2009 John Wiley & Sons, Ltd.
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