A power quality disturbance detection combined with adaptive threshold and multi-resolution SVD packets

In view of the power quality disturbance detection problem, a power quality disturbance detection algorithm combining adaptive threshold and multi-resolution singular value decomposition packet is proposed with current signal as the research object. The multi- resolution SVD packets decomposition is used on the current signal. The disturbance can be detected according to the characteristics of the decomposed high frequency components, and combine with the adaptive threshold value to determine whether disturbance occurs. The algorithm is verified by simulation, and the simulation results show that this algorithm has good anti-noise capability, and can realize fast and accurate positioning of disturbance signals.In view of the power quality disturbance detection problem, a power quality disturbance detection algorithm combining adaptive threshold and multi-resolution singular value decomposition packet is proposed with current signal as the research object. The multi- resolution SVD packets decomposition is used on the current signal. The disturbance can be detected according to the characteristics of the decomposed high frequency components, and combine with the adaptive threshold value to determine whether disturbance occurs. The algorithm is verified by simulation, and the simulation results show that this algorithm has good anti-noise capability, and can realize fast and accurate positioning of disturbance signals.

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