Research on Multi level Protection Method of Distribution Network Based on Intelligent Switch

Large scale new energy resources are connected to the distribution network, which makes the fault characteristics of the distribution network more complex, and the protection strategy of traditional distribution network using subsection time setting is difficult to meet the demand. Aiming at this problem, we propose a multi-level distribution network subsection based on intelligent switch, and designs a multi-protection level division method based on linear regression analysis of electricity quantity. The time-setting approach based on reinforcement learning is described, and a distributed multi-level protection architecture with the intelligent switch as the primary control unit is established. Finally, the effectiveness of the proposed method is verified by simulation experiments.