Considering the multi-mode data fusion fault line selection method of distributed energy access to the distribution network

With the integration of distributed energy into the distribution network, the traditional fault line selection method of the distribution network is challenged. In order to improve the fault line selection ability of 10kV distribution network, this paper proposes a fault line selection method for distribution network based on multi-mode data fusion. By calculating the product of the zero-mode voltage and the zero-mode current component, and introducing the sliding window mean filtering process, the polarity criterion is given a higher weight to realize fault line selection. However, when the zero-mode component is not obvious, the energy characteristics of the line-mode component under a specific frequency band are selected to rely on the line-mode component, and the line-mode component energy criterion is given a large weight, and the line is scored, and the fault line with the highest score is selected. Experimental results show that the proposed method can achieve accurate fault line selection for different fault types and different fault locations after decentralized energy access.