Abstract

Substation auxiliary services are an important part of maintaining the safe and stable operation of substations and power grids. However, at the present stage, the auxiliary services still operate under decentralized management and are not effectively aggregated. To solve this problem, a three-tier architecture of edge node—master node—server is proposed based on edge computing, with a cluster approach based on the low energy adaptive clustering hierarchy (LEACH) protocol to balance computing resources and effectively manage substation auxiliary services. The main computing tasks are sunk to the edge nodes in the three-tier architecture, and the nodes are self-organized into a subclustered network responsible for specific auxiliary services. The master node is elected by the edge nodes according to the improved LEACH protocol and is responsible for managing the edge nodes and heterogeneous data fusion. The server ensures the reliability and security of data through the RAFT protocol. Theoretical analysis and extensive simulations show that this scheme can balance the computing resources of each substation's auxiliary service equipment and realize the aggregation of auxiliary services.

Full Text
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