Optimization of Node Configuration in 10 kV Dual-Ring Self-Healing Distribution Networks Considering Node Response Fault Probability
The configuration of 10 kV dual-ring self-healing systems significantly enhances the self-healing capa-bility and supply reliability of distribution networks.However,the increasing number of nodes in distribution net-works also increases the risk of node operation faults.Too few nodes hinder the maximization of supply efficiency in dual-ring networks,while too many nodes decrease the overall reliability of the supply network.Based on re-search into the fault probability response of individual nodes,this paper introduces an event probability model and establishes a dual-ring distribution station node response fault risk probability model that considers single-factor and iterative risks.Furthermore,based on different system operation modes,a reliability increment model for dis-tribution stations in dual-ring self-healing systems is developed.Building upon the additive combination of re-sponse fault risk probability and reliability,factors such as system capacity and load balance are introduced to es-tablish a node configuration optimization model for distribution network self-healing systems.
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