摘要
随着化石能源的枯竭,风电、光伏等分布式能源的兴起以及电力电子技术的快速发展,相比交流配电网,柔性直流配电网拥有更为广阔的发展前景。首先研究了两端"手拉手"柔性直流配电网的典型运行方式;其次针对直流配电网内线路断开和部分可控设备退出运行等导致系统运行方式改变的情况,提出了系统控制模式的切换方法;最后在RT-LAB实时仿真平台上实现了直流配网系统的4种典型运行方式及系统控制模式自动平滑切换的硬件在环测试实验,验证了模式切换方案的有效性,为今后直流配电网运行方式的研究提供了重要参考。
With the depletion of fossil energy,the rise of distributed energy such as wind power and photovoltaic（ PV） and the rapid development of power electronics technology,the VSC-DC power distribution network has more potential compared with AC power distribution network. In this paper,firstly,typical operation modes of ＂hand in hand ＂VSC-DC distribution power network are researched. Secondly,switching methods of system control modes is proposed for the cases of disconnection and controllable devices partially out of operation resulting in changes of operation mode,At last,hardware in loop（ HIL） tests on RT-LAB including 4 typical operation modes of DC distribution network and smooth automatic switching of system control mode are carried out. The simulation results indicate the effectiveness of the proposed mode switching methods and these methods provide a significant reference for the future research of DC power distribution network.
出处
《南方电网技术》
北大核心
2016年第4期8-15,共8页
Southern Power System Technology
基金
国家高技术研究发展计划(863计划)项目(2015AA050103)~~
关键词
直流配电网
运行方式
模式切换
电压协调控制
硬件在环测试
DC distribution network
operation mode
mode switching
voltage coordination control
hardware test in loop
