Distributed Voltage Control Strategy for High Proportion Photovoltaic Distribution Network Considering Abnormal Communication

The distributed reactive power coordinated control of photovoltaic inverter group has the potential to solve the problems of serious voltage over-limit and voltage fluctuation. The effectiveness of the distributed voltage control strategy currently studied is based on the premise of perfect communication. However, the actual distribution network has abnormal communication conditions such as random delay, error code, packet loss, network attack and network congestion, resulting in unsatisfactory voltage control effect. In order to solve the above problems, this paper proposes a distributed voltage control strategy for distribution network considering communication anomalies. The strategy solves the problems of communication data delay, packet loss and attack by constructing asynchronous iterative architecture, information retransmission and information verification. Through the IEEE 33 node example, it is verified that the method proposed in this paper can effectively solve the influence of abnormal communication in distribution network on voltage control effect.