适用于柔性直流电网的多端口直流潮流控制器

发布时间：2018-01-05 20:09

本文关键词：适用于柔性直流电网的多端口直流潮流控制器　出处：《电力系统自动化》2017年22期 　论文类型：期刊论文

【摘要】：现有的直流潮流控制器大多为双端且仅能辅助控制一条线路上的潮流。为全面控制直流电网潮流分布,文中提出了一种适用于柔性直流电网的多端口直流潮流控制器,它可以同时控制多条线路上的潮流且易于拓展。首先,在充分研究已有直流潮流控制器的基础上,提出了多端口直流潮流控制器的拓扑结构并详细阐述了工作原理;其次,研究了多端口直流潮流控制器的等效电路,进而设计了能够使其稳定运行的控制策略;最终,在RT-LAB仿真平台中搭建了舟山五端柔性直流输电系统并安装了三端口直流潮流控制器,对所提拓扑结构和控制策略进行了仿真验证。
[Abstract]:Most of the existing DC power flow controllers are two-terminal and can only assist to control the power flow on one line, which is the overall control of DC network power flow distribution. In this paper, a multi-port DC power flow controller for flexible DC networks is proposed, which can control the power flow on multiple lines simultaneously and is easy to expand. Based on the research of the existing DC power flow controller, the topology structure of the multi-port DC power flow controller is proposed and the working principle is expounded in detail. Secondly, the equivalent circuit of multi-port DC power flow controller is studied, and the control strategy that can make it run stably is designed. Finally, the five-terminal flexible DC transmission system of Zhoushan is built in the RT-LAB simulation platform, and the three-port DC power flow controller is installed. The topology and control strategy are simulated and verified.
【作者单位】：东北电力大学电气工程学院;
【基金】：国家自然科学基金资助项目(51677023)~~
【分类号】：TM761
【正文快照】： 0引言新能源发电属于中国战略性新兴产业,大力发展风力发电、太阳能发电等新能源发电技术是保障中国能源安全、应对气候变化、实现节能减排的重要举措,但新能源发电并网问题制约着中国新能源产业的发展[1-4]。直流电网是具有先进能源管理系统的智能、稳定的广域传输网络,运行

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