考虑通信延时-丢包的配电网分布式电压控制

Distributed Voltage Control of Distribution Network Considering Communication Delay and Packet Loss

含分布式电源配电网的分布式控制策略具有解决配电网电压控制难题的潜力。然而,分布式电源在空间上分布松散,节点间会出现通信时延、丢包等通信问题,传统的分布式控制算法对该通信情况下的应对方式还不完善。因此,提出了一种综合考虑通信延迟和通信丢包的配电网分布式控制策略,针对非正常通信过程中的随机延时、丢包问题,在一致性算法中引入一致性增益系数和部分同步的迭代架构,并以算法的收敛时间最短为目标,建立了采样步长优化模型,实现了一致性算法稳定收敛,同时减轻了通信延迟较大的信道对算法迭代速度的影响。

The distributed control strategy of the distribution network with distributed generation is expected to solve the voltage control problem of the distribution network.However,distributed generation are loosely distributed in space,and communication problems such as communication delay and packet loss between nodes are inevitable.Traditional distributed control algorithms cannot well solve the voltage control challenges under this communication situation.Therefore,a distributed control strategy for distribution networks that comprehensively considers communication delay and packet loss was proposed.To address the issues of random delay and packet loss in abnormal communication processes,a sampling step optimization model was established with the goal of minimizing the algorithm convergence time by introducing consistency gain coefficients and partially synchronized iterative architectures in the consistency algorithm.The proposed algorithm achieves stable convergence of the consistency algorithm and reduces the impact of channels with large communication delays on the iteration speed of the algorithm.