摘要
智能软开关(soft open point,SOP)是安装于传统联络开关处的电力电子装置,能够快速、准确地控制自身功率流动,改变系统功率分布,进而改善整个配电系统的运行状态。在配电网发生故障并隔离后,SOP可以为失电区域提供有效的电压支撑,提高配电系统的供电恢复能力。首先,对SOP的主要功能和数学模型进行阐述,给出考虑SOP的配电网故障恢复流程;其次,提出基于SOP的有源配电网供电恢复模型,这一模型本质上属于大规模非线性规划模型,采用二阶锥规划方法进行模型转化和求解;最后,在IEEE 33节点测试算例上进行分析验证,得到影响SOP供电恢复能力的因素,并在不同的分布式电源条件下进行对比分析,验证所提模型的正确性和有效性。
Soft open point(SOP) refers to a novel power electronic device installed in active distribution networks(ADNs) to replace the traditional tie switch. The application of SOP will promote the flexibility and resilience of ADNs. Under a fault condition, SOP enables to provide voltage support and helps to expand the scope of power supply for the supply restoration. In this paper, a supply restoration model of active distribution system was established based on SOP, which is essentially a complex nonlinear programming problem. To obtain a high quality solution rapidly and accurately, the second order cone programming was adopted to solve this problem. Then, the modified IEEE 33-node system was used to verify the effectiveness and efficiency of the proposed method.
作者
宋毅
孙充勃
李鹏
原凯
宋关羽
王成山
SONG Yi;SUN Chongbo;LI Peng;YUAN Kai;SONG Guanyu;WANG Chengshan(State Grid Economic and Technological Research Institute Co.Ltd.,Chang-ping District,Beijing 102209,China;Key Laboratory of Smart Grid of Ministry of Education(Tianjin University),Nankai District,Tianjin 300072,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2018年第15期4390-4398,共9页
Proceedings of the CSEE
基金
国家重点研发计划项目(2016YFB0900103)
国家电网公司科技项目(5204JY17000H)~~
关键词
有源配电网
智能软开关
供电恢复
二阶锥规划
active distribution network.
soft open point(SOP)
supply restoration
second order cone programming