ADMM-based coordinated decentralized voltage control meets practical communication systems

More and more distributed generators (DGs) will penetrate into the distribution power system in the future. Therefore, voltage fluctuation becomes a challenging essential issue for future smart grids. In this paper a coordinated decentralized voltage control method based on a distributed optimal power flow (OPF) algorithm, alternating direction multiplier method (ADMM), is proposed which does not require any control center. Meanwhile, the communication queueing theory for this ADMM is also presented. Simulation results show that the coordinated control approach is sensitive to time-delay in a medium-voltage distribution network (MVDN).