Bulk-power Grid Support: Distributed OPF for Voltage and Frequency Regulation.

As the electric power distribution system evolves towards a distributed architecture, the task of providing ancillary services to bulk-power systems through grid-edge assets becomes increasingly crucial. In this paper, we present a novel, scalable, distributed optimization-based method formulated to deliver such ancillary services, including voltage and frequency regulation, by coordinating reactive and active power outputs from grid-edge devices. The proposed method has been extensively validated through comparisons with equivalent solvers, demonstrating its effectiveness and feasibility.