Edge-Side Cross-Area State Synchronization Method Adapted to Multiple Delay-Sensitive Services
Yi Zhou, Li Li, Chang Wang, Lin Yang · Processes · 2025
With the integration of high proportions of new energy and high proportions of power electronic devices, the spatial–temporal correlation scale of emerging distribution business has experienced a sudden increase, and the demand for inter-distribution area collaboration is increasing steadily. Currently, distribution systems heavily rely on cloud master stations to facilitate the state synchronization process across feeders for such business. However, this approach struggles to adapt to the diverse delay-sensitive characteristics anticipated in future large-scale integrations. Therefore, a novel edge-side state synchronization method for cross-feeder operations in distribution systems tailored to diverse delay-sensitive services is proposed. Firstly, the traditional integrated hierarchical vertical network structure is evolved to construct “edge–cloud–edge” and “edge–edge” dual data transmission channels for inter-distribution area nodes. Secondly, considering the unique characteristics of each channel, their expected synchronization delays for differentiated services are calculated. An optimization problem is then formulated with the objective of maximizing the minimum expected synchronization delay redundancy rate. Finally, an iterative variable weighting method is designed to solve this optimization problem. Simulation analysis shows that the proposed algorithm can better adapt to the high-concurrency differentiated inter-distribution area status synchronization demands of diverse time-sensitive businesses, efficiently supporting the flexible, intelligent, and digital transformation of distribution networks.