Cyber-Resilient Distributed Operation of Active Distribution Networks Based on Relaxed Alternating Direction Method of Multipliers

摘要

With the integration of microgrids (MGs) into power distribution networks, the traditional distribution network transforms into an active distribution network (ADN). For the information privacy of all participants and stakeholders, decentralized optimization algorithms are used to optimize the ADN energy management problem. This paper develops a cyber-resilient distributed ADN economic dispatch algorithm based on a relaxed alternating direction method of multipliers (R-ADMM) considering disruptive but unexpected communication failures in the process of coordinated decision making of distribution networks and MGs. Case studies based on a modified IEEE 33bus distribution system are conducted to evaluate the convergence performance and resilience of the proposed method in the cases of packet dropout and time delay. Simulation results demonstrate that the resilience of the proposed algorithm is better than the classic ADMM algorithm.