电网技术2017，Vol.41Issue(12)：3764-3771,8.DOI:10.13335/j.1000-3673.pst.2017.1445
柔性配电网的安全域模型
Security Region Model for Flexible Distribution Network
摘要
Abstract
The paper proposes a model of security region for flexible distribution network (FDN) and compares it with traditional distribution networks (TDN). Firstly, the paper presents FDN concept and features. Secondly, security constraints of normal operation N-0 and N-1 are discussed. Then, FDN security region is modeled and region boundary formulations are proposed. Finally, N-0/N-1 security region and supply capability of FDN and TDN are studied with singleand multi-connection cases. Results show correctness of the proposed method, and find out that: 1) FDN can expand N-0/N-1 security region, improving load supply capability under normal operation and N-1 security; 2) Number of operating points at total supply capability of FDN is more than TDN, making it easier to achieve in practice; 3) Load power of a FDN node can exceed feeder capacity limit, leading to a better capability of local load supply. Meanwhile, from two-dimensional security region view, shape characteristics and formation of FDN security region are summarized, and internal relations between the factors and flexible closed-loop characteristics are revealed. From the view of security and efficiency, multi-connection is more suitable for FDN.关键词
柔性配电网/安全域/安全边界/N-0 域/N-1 域Key words
flexible distribution network/security region/region boundary/N-0 security region/N-1 security region分类
信息技术与安全科学引用本文复制引用
肖峻,刚发运,邓伟民,黄仁乐,何妍妍,伊丽达..柔性配电网的安全域模型[J].电网技术,2017,41(12):3764-3771,8.基金项目
国家重点研发计划项目(2016YFB0900103) （2016YFB0900103）
国家自然科学基金项目(51477112).Project Supported by The National Key Research and Development Program of China (2016YFB0900103) （51477112）
Project Supported by National Natural Science Foundation of China (NSFC) (51477112). （NSFC）
