Distributed Voltage Regulation in Intelligent Distribution Network

With the expansion of active distribution network (ADN) scale and increasing operational complexity, traditional centralized reactive power optimization methods are facing significant challenges due to their high computational resource demands, limited communication bandwidth, and insufficient real-time performance. This paper proposes a zonal-based distributed reactive power optimization scheme for power distribution networks, aiming to address the critical issues of low efficiency and poor flexibility in large-scale grid optimization.The proposed intelligent distribution network collaborative voltage optimization control system realizes rapid restoration of node voltages to stable rated levels through distributed voltage optimization control. Meanwhile, it establishes a dual-objective optimization framework that minimizes line network losses while maintaining voltage stability constraints to optimize power output. This system ensures stable, economical, and efficient operation of distribution networks under diverse operational conditions.