柔性配电网的最大供电能力模型

发布时间：2018-03-03 05:34

本文选题：柔性配电网　切入点：最大供电能力　出处：《电力系统自动化》2017年05期 　论文类型：期刊论文

【摘要】：提出了柔性配电网(FDN)的最大供电能力(TSC)模型与计算方法。首先,提出了FDN的概念,FDN利用电力电子开关构成的柔性开闭站(FSS)将多回馈线联络组网,采用能灵活控制潮流的柔性闭环运行方式。其次,提出了FDN的TSC模型与求解方法,模型计及了FSS对负荷的柔性转带策略。最后,搭建典型组网形态下不同情况的FDN验证所述方法。与传统配电网TSC对比发现:FDN的TSC总量既有提升的情况也有不变的情况,文中分析了原因。从TSC角度看,FDN的优势在于:1TSC在FDN实际运行中更易实现,达到TSC时FDN允许馈线上负荷任意分布,而传统配电网只有在负荷满足特定分布时才能达到TSC;2达到同等TSC时,FDN的组网结构更简单。所述方法已应用于国内外首个多端柔性闭环中压配电网示范工程的方案论证。
[Abstract]:The model and calculation method of maximum power supply capacity (FDN) for flexible distribution network (FDN) are presented. Firstly, the concept of FDN is proposed to make use of flexible open and close station (FSS) composed of power electronic switches to connect multiple feedback lines. Flexible closed-loop operation mode is adopted to flexibly control power flow. Secondly, the TSC model and solution method of FDN are proposed. The model takes into account the flexible transfer strategy of FSS to load. Comparing with the traditional distribution network TSC, it is found that the total TSC volume of the TSC of the 2: FDN is not only increased but also unchanged. The reason is analyzed. From the point of view of TSC, the advantage of FDN is that it is easier to realize in the practical operation of FDN, and FDN allows arbitrary distribution of load on the feeder when TSC is achieved. However, it is simpler for the traditional distribution network to achieve the same TSC when the load satisfies the specific distribution. The proposed method has been applied to the demonstration project of the first multi-terminal flexible closed-loop medium-voltage distribution network at home and abroad.
【作者单位】：智能电网教育部重点实验室天津大学;国网北京市电力公司;北京电力经济技术研究院;
【基金】：国家高技术研究发展计划(863计划)资助项目(2015AA050102) 国家自然科学基金资助项目(51277129)~~
【分类号】：TM732

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