Distributed Voltage Control in Distribution Network with Area Partition

The deployment of distributed generations(DGs) poses increasing burden to sensing and communication in centralized voltage control. To address this issue, a distributed voltage control method is proposed in this paper. In the proposed method, the whole distribution network is separated into several areas and each area is equipped with a sub-controller. The idea of alternating direction method of multipliers(ADMM) is used for the distributed voltage control design by exchanging information of boundary variables between two adjacent areas. In this way, the requirements for data collection and communication is reduced. Case studies on a modified IEEE 33 bus system with three area partition demonstrate the performance of the proposed distributed voltage control method.