高比例新能源接入主动配电网的完全分布式优化方法

Fully Distributed Optimization Method for High Proportion of New Energy Integration in Active Distribution Networks

针对传统配电网在大规模新能源接入电网时的通信量、计算量激增问题,充分考虑主动配电网(Active distribution network, ADN)的灵活性和调节能力,提出了高比例新能源接入的配电网优化方法,首先建立了基于区域独立划分原则和调节能力最优原则的完全分布式最优潮流(Optimal power flow, OPF)模型,然后利用分布式交替方向乘子法(Alternating direction multiplier method, ADMM)对该模型进行求解,最后在IEEE118总线和1062总线系统上进行了算例仿真与分析。结果表明构建的主动配电网系统具有良好的快速性和经济性。

In response to the problem of communication and computing surge in traditional distribution networks when large-scale new energy is connected to the power grid,this paper fully considers the flexibility and regulation ability of Active Distribution Network(ADN)and proposes a distribution network optimization method for high proportion of new energy access.Firstly,a fully distributed optimal power flow(OPF)model based on the principles of regional independent division and optimal regulation ability is established,and then,the alternating direction multiplier method(ADMM)is used to solve the model in a distributed manner.Finally,numerical simulations and analysis are conducted on IEEE 118 bus and 1062 bus systems.The results indicate that the active distribution network system constructed in this article exhibits good speed and economy.