摘要
交直流混合配电网能便捷高效地接入各种交直流设备,将是未来配电网的发展方向之一,其运行控制策略是保证系统稳定、可靠运行的基础。基于多端直流互联结构的交直流混合配电网,研究主从控制模式和下垂控制模式下的各换流站的控制策略,以及换流站交流侧故障和恢复并网过程中重要负荷的不间断供电方法。通过 Matlab/Simulink搭建多端交直流混合配电网测试模型,结合该文提出的协调控制策略进行仿真算例分析,验证了其可行性和有效性。
The AC/DC hybrid power distribution network can easily and efficiently access various kinds of AC/DC de-vices.It is also one of the future development orientations for distribution networks.Therefore,its control strategy is the foundation to ensure the stability and reliability of system.Based on the AC/DC hybrid power distribution network with the multi-terminal DC interconnection structure,this paper studies the control strategies of each converter station in masterslave control mode and droop control mode.Then,the uninterrupted power supplication is investigated for the cases of the AC side fault and the recovery process of converter station.Finally, the testing model of multi-terminal AC/DC hybrid power distribution network is built through the Matlab/Simulink platform to verify the feasibility and effectiveness of proposed coordinated control strategy.
作者
张瑞东
邓卫
张学
范士雄
于汀
裴玮
ZHANG Rui-dong;DENG Wei;ZHANG Xue;Fan Shi-xiong;YU Ting;PEI Wei(Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;China Electric Power Research Institute, Beijing 100192, China)
出处
《电力科学与技术学报》
CAS
北大核心
2019年第2期33-39,共7页
Journal of Electric Power Science And Technology
基金
国家自然科学基金(51407177)
国网科技部项目资助(DZ71-16-001)
关键词
交直流混合配电网
协调控制
多端直流
不间断供电
AC/DC hybrid power distribution network
coordinated control strategy
multi-terminal DC
uninterruptible power supply
