配电系统智能软开关技术及应用

Technologies and Application of Soft Open Points in Distribution Networks

配电网柔性化是统筹配电系统中各类源荷可调度资源,提升系统整体运行水平的有效解决方案。智能软开关(SOP)是实现柔性配电网的核心装置,近年来已广泛开展SOP运行控制的相关研究并取得了丰富成果。从配电网的柔性化发展态势入手,梳理了SOP及其衍生的柔性互联理念在多场景下的技术形态与应用形式。在此基础上,针对以SOP为核心的柔性配电网在运行优化、故障自愈、配置规划等不同阶段的关键技术问题,对当前主要的技术方向和研究进展进行了阐述,并对未来SOP的发展方向进行了展望,为SOP技术研究与应用的进一步拓展和深化提供了思路。

Flexible distribution networks are promising solutions to improve the operation performance by coordinating the diverse resources of distributed generators and loads. Soft open point(SOP) is considered as the essential equipment for realizing flexible distribution networks. In recent years, researches on the SOP operation control have been widely conducted and achieved abundant progress. This paper starts from the development trend of flexibility of the distribution network. The technical forms and application forms of SOP and its derived flexible interconnection concepts in multiple scenarios are reviewed and sorted out. On this basis, the key technical issues on SOP integration in flexible distribution networks for operation optimization, self-healing control,and configuration planning are explained, followed by a summarization of the current works.The development trend of SOP in the future is prospected, which provides ideas for the further expansion and deepening of the research and application of SOP technologies.