基于低压配电网的电能路由器拓扑及其控制策略研究  

Study on topology and control strategies of power router based on low-voltage distribution networks

作　　者：曾梦迪 唐升卫[1,2] 黄萌 孙建军[3] 韦李军[3] 刘菲 ZENG Meng-di;TANG Sheng-wei;HUANG Meng;SUN Jian-jun;WEI Li-jun;LIU Fei(Guangdong Electric Power Research Institute,Guangzhou 510300,China;China Southern Power Grid Key Laboratory of Power Grid Automation ,Guangzhou 510300,China;School of Electrical Engineering and Automation ,Wuhan University,Wuhan 430072,China)

机构地区：[1]广东电网公司电力科学研究院,广东广州510300 [2]中国南方电网自动化重点实验室,广东广州510300 [3]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《电子设计工程》2019年第18期59-64,共6页Electronic Design Engineering

基　　金：广东电网公司科技项目“美丽乡村建设背景下智能中低压配电网技术研究及示范-课题3”(GDKJXM20190411)

摘　　要：传统低压配电网传输特性与主网不同,传输功率损耗大,尤其是偏远地区配电网末端电压质量普遍偏低。随着主动配电网技术的发展,尤其是电能路由器的出现,为配电网末端电压问题的解决提供了有效手段。设计一种具有电压控制功能和光伏-储能系统接入的低压配电网末端电能路由器拓扑,提出基于串、并联阻抗补偿的电压控制策略和光伏-储能系统协同工作模式。本文在Simulink和RTDS中搭建配网和系统工作模型,对上述控制策略进行仿真实验,验证了该系统能有效改善低压配电网电压质量。In conventional low- voltage distributed networks,whose transmission characteristics are different from the main network,its large transmission power loss problem exists obviously. Especially in the terminal of rural distributed networks,power qualities are at low levels and fluctuate over time. Along with the development of active distribution networks,particularly the development of power routers, effective approaches to solve terminal voltage problems have emerged. A terminal and multi-interface power router’s topology with voltage control for distributed networks is proposed,which coordinates the access of Photovoltaic and storage devices. Analyses are focused on its voltage control strategies based on series and parallel impedance compensation.Also,cooperative working modes of Photovoltaicstorage devices system are proposed.The distribution network and power router model are built in Simulink and RTDS,and the simulation results validate the effectiveness of the power router’s topology and control strategies above.

关 键 词：电能路由器 拓扑 配电网 电压质量 光伏-储能 

分 类 号：TN98[电子电信—信息与通信工程]