摘要
随着不确定性的分布式电源大量接入配电网,配电网中日益增加的多重不确定性因素给其规划带来了新的挑战。面向配电网分布式电源的选址定容问题,考虑了负荷和风速的不确定性以及它们之间的相关性,提出了考虑多重不确定性因素的配电网鲁棒规划方法。首先基于全寿命周期成本和鲁棒优化的思想,构建考虑多重不确定性因素的双层鲁棒规划模型;然后对下层鲁棒优化模型进行对偶变换,通过最坏场景对上层规划方案进行安全约束校验;最后利用拉丁超立方采样和Cholesky分解对风速和负荷的不确定性相关性进行处理,从而寻求多重不确定性因素下的最坏场景。
With a large number of uncertain distributed generation connected to distribution networks,increasing multiple uncertainties in distribution networks bring new challenges to its planning. Considering the uncertainty of load and wind speed and their correlation,a robust planning method is proposed considering multiple uncertainties for distribution network. Firstly,a two-layer robust planning model considering multiple uncertainties is constructed based on life cycle cost and robust optimization. Then the underlying robust optimization model is dually transformed and the upper planning scheme is verified with the worst scenario. Finally,Latin Hypercube Sampling and Cholesky factorization are used to deal with the correlation of uncertainties between wind speed and load to seek the worst scenario under multiple uncertainties.
作者
宋璇坤
辛培哲
李珊
杨楠
SONG Xuankun;XIN Peizhe;LI Shan;YANG Nan(State Grid Economic and Technological Research Institute Co. Ltd.,Beijing 102209,China;State Grid Henan Electric Power Economic and Technological Research Institute,Zhengzhou 450000,China;New Energy Micro-grid Collaborative Innovation Center of Hubei Province,China Three Gorges University,Yichang 443000,China)
出处
《智慧电力》
北大核心
2019年第6期56-63,共8页
Smart Power
基金
国家自然科学基金资助项目(51607104)~~
