Optimal Voltage Control for Active Distribution Networks Utilizing a Distributed Event-Triggered Accelerated Method

The increasing penetration of distributed energy resources in active distribution networks poses significant challenges to voltage regulation and system stability. This article proposes a distributed optimal voltage control algorithm that jointly coordinates active and reactive power regulation to maintain voltage stability while satisfying operational constraints. To enhance convergence speed, a momentum-based acceleration mechanism is incorporated into the traditional primal–dual framework. Furthermore, an event-triggered communication strategy is developed to substantially reduce data exchange among neighboring agents by activating transmissions only when necessary. Rigorous theoretical analysis establishes the convergence of the proposed algorithm, and comprehensive simulation studies verify its effectiveness. The results demonstrate that the proposed algorithm can accurately regulate voltage profiles with faster convergence and significantly lower communication overhead.