摘要
为改善直流微网中复合储能下垂控制功率分配的灵活性,提出了一种基于自定义电压变化率动态改变下垂系数的控制方法,并设计了电流归零控制器,可以实现储能暂态和稳态功率的合理分配,分析了参数变化对控制效果的影响。在PSCAD中搭建了含储能的直流微网模型,仿真验证了所提方法的正确性。
In order to improve the flexibility of hybrid energy storage droop control power distribution in DC micro-grid,a control method based on the custom voltage change rate to dynamically change the droop coefficient is proposed,and a current zeroing controller is designed to realize the energy storage transient and reasonable distribution of steady-state power.And the influence of parameter changes on the control effect is analyzed.Finally,the DC micro-grid model with energy storage is built in PSCAD,and the effectiveness of the proposed method is verified by simulation.
作者
肖雄波
林云峰
付立军
夏立
XIAO Xiong-bo;LIN Yun-feng;FU Li-jun;XIA Li(National Key Laboratory of Science and Technology on Vessel Integrated Power System, Naval Univ. of Engineering, Wuhan 430033, China)
出处
《海军工程大学学报》
CAS
北大核心
2020年第1期44-49,共6页
Journal of Naval University of Engineering
基金
国家973计划资助项目(613294)
湖北省自然科学基金资助项目(2018CFB291)。
关键词
直流微网
改进下垂控制
功率分配
混合储能
电流归零
DC micro-grid
improved droop control
power distribution
hybrid energy storage
current zero control
