分布式储能控制策略对有源低压配电网影响研究

Research on the Influence of Distributed Energy Storage Control Strategy on Low-Voltage Active Distribution Network

在分布式电源侧配置分布式储能可以平抑分布式电源出力波动,提高分布式电源在低压配电网的渗透率。为研究分布式储能控制策略对有源低压配电网的影响,对分布式储能系统进行建模。为了更加贴近实际低压配电网三相不平衡的情况,采用适用于低压配电网三相四线制的潮流模型。提出三种分布式储能的充放电控制策略,基于注入电流的牛顿拉夫逊潮流算法,对算例模型进行求解,进而分析分布式储能控制策略对有源低压配电网的影响。

Configuring the distributed energy storage on the side of DG can stabilize the output fluctuation of DG and improve the permeability of DG in the low-voltage distribution network. In order to research the influence of distributed energy storage control strategy on low-voltage active distribution network, modeled the distributed energy storage system in this paper firstly. proposed three kind of charging and discharging control strategies for distributed energy storage. Finally, solved the example model based on the newton-rapson power flow algorithm of injection current, and then analyzed the influence of distributed energy storage control strategy on the low-voltage active distribution network.