电工技术学报  2020, Vol. 35 Issue (19): 4171-4182    DOI: 10.19595/j.cnki.1000-6753.tces.191038
电力系统 |
配电网安全域的全维直接观测
肖峻1, 曹严1, 张宝强2, 佘步鑫1
1.天津大学智能电网教育部重点实验室 天津 300072;
2.中汽研汽车检验中心(天津)有限公司 天津 300300
Full-Dimensional Direct Observation of Distribution System Security Region
Xiao Jun1, CaoYan1, Zhang Baoqiang2, She Buxin1
1. Key Laboratory of Smart Grid of Ministry of Education Tianjin University Tianjin 300072 China;
2. CATARC Automotive Test Center (Tianjin) Co. Ltd Tianjin 300300 China
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摘要 该文进行了配电网安全域(DSSR)的全维直接观测。首先,总结了现有观测方法。其次,提出DSSR的全维直接观测方法。对两供一备和柔性两供一备接线的全维直接观测发现:两供一备的安全域是凹多面体,由一个“域核”和多个“域角”构成;域表面有“山脊”和“山谷”,“山谷”形成了域凹陷。柔性两供一备的安全域是凸多面体,不存在“山谷”,填补了传统两供一备的域凹陷。可见,全维直接观测清楚地展现了不同电网结构体现在安全域上的不同几何特征。该文还进一步给出了“域核”、“域角”、“山脊”、“山谷”的物理意义和形成原因。最后,将该方法与其他安全域观测方法进行对比和总结。
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关键词 配电网安全域全维直接观测域核域角山脊山谷    
Abstract:Full-dimensional direct observation of distribution system security region (DSSR) is carried out in this paper. Firstly, the existing observation methods are summarized. Secondly, a full-dimensional direct observation method of DSSR is proposed. The full-dimensional direct observation of two-supply-one-standby and flexible two-supply-one-standby connections shows that the security domain of two-supply-one-standby is a concave polyhedron, which is composed of a“domain core” and multiple“domain corners”; The surface of its security region has “ridges” and “valleys”, and “valleys” form domain depression. The security domain of flxible two-supply-one-backup wiring is a convex polyhedron, and there is no “valley”, which fills the traditional depression of two supplies and one backup It can be seen that the full-dimensional direct observation clearly shows the different geometric characteristics of different power grid structures embodied in the security region. This paper further gives the physical meanings and formation reasons of “region core”,“region angle”,“ridge” and“valley”. Finally, the method of this paper is compared and summarized with other security domain observation methods.
Key wordsDistribution system security region    full-dimensional direct observation    region core    region angle    ridge    valley   
收稿日期: 2019-08-18     
PACS: TM711  
基金资助:国家重点研发计划(2016YFB0900100)和国家自然科学基金(51877144)资助项目
通讯作者: 肖峻,男,1971年生,博士,教授,研究方向为配电系统规划评估,智能配电系统运行和分布式电源与微网。E-mail:xiaojun@tju.edu.cn   
作者简介: 曹严,男,1997年生,硕士研究生,研究方向为配电系统规划和智能配电系统运行。E-mail:yan221@tju.edu.cn
引用本文:   
肖峻, 曹严, 张宝强, 佘步鑫. 配电网安全域的全维直接观测[J]. 电工技术学报, 2020, 35(19): 4171-4182. Xiao Jun, CaoYan, Zhang Baoqiang, She Buxin. Full-Dimensional Direct Observation of Distribution System Security Region. Transactions of China Electrotechnical Society, 2020, 35(19): 4171-4182.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.191038          https://dgjsxb.ces-transaction.com/CN/Y2020/V35/I19/4171