摘要
国内外大力提倡用户开发利用清洁能源,而分布式电源(distributed generation,DG)的不确定性对接入配电网规划运行带来了巨大的挑战。文章侧重于对现有配电网的升级改造,主要包含有载调压变压器、主动配电网储能系统、分组投切电容器、静止无功补偿装置等主动管理手段的网络拓扑规划设计,以适应分布式电源和负荷的不确定发展。首先,对DG和负荷建立了一定保守度的不确定性时序集合,并设计了场景筛选规则;其次,构建了主动配电网分层鲁棒规划模型,并以弃风、弃光和失负荷最少为优化目标;然后,对规划模型投资层和运行层进行有效关联,且通过二阶锥等手段将原模型转化为混合整数二阶锥规划问题进行快速求解。最后,通过修改的IEEE 33节点系统验证了模型的有效性。
The renewable energies have been promoted worldwide, however, the distribution company will face huge challenges due to the uncertain penetration of distributed generations. This paper focused on the upgrading of the existing distribution network based on the network topology planning including active management devices, e.g. On-load tap changer （OLTC）, electrical storage system （ESS）, capacitor banks （CB）, and static VAR compensation （SVC） in order to accommodate uncertain development of distributed generations （DG） and load demand increase. Firstly, the time-varying uncertainty model and the selection rule of scenarios were addressed. Secondly, robust planning model of active distribution network whose objective includes curtailment cost of wind power, photovoltaic power and load was proposed. Then, the investment level and operation level were associated together in the programming model, and some methods, e.g. the second order cone （SOC） were applied to transform the original model to mixed integer SOC programming problem to quickly solve. Finally, the proposed model was verified by the modified IEEE 33 node system.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2017年第5期1389-1400,共12页
Proceedings of the CSEE
基金
国家高技术研究发展计划项目(2014AA051901)
国家自然科学基金项目(51377111)~~
关键词
主动配电网
鲁棒规划
分布式电源
不确定性
二阶锥规划
active distribution network
robust planning
distributed generation
uncertainty
second order cone （SOC） programming
