针对分布式光伏出力的不确定性对新型配电网合环运行产生的影响,文中提出了一种考虑合环电流约束的新型配电网负荷均衡分布鲁棒优化模型。考虑新型配电网合环电流的稳态约束和暂态约束,建立了新型配电网负荷均衡优化模型。在此基础上,采...针对分布式光伏出力的不确定性对新型配电网合环运行产生的影响,文中提出了一种考虑合环电流约束的新型配电网负荷均衡分布鲁棒优化模型。考虑新型配电网合环电流的稳态约束和暂态约束,建立了新型配电网负荷均衡优化模型。在此基础上,采用K-means聚类对分布式光伏出力历史数据进行聚类,得到具有代表性的典型场景,同时考虑1-范数和∞-范数对置信区间的约束,建立考虑合环电流约束的新型配电网负荷均衡分布鲁棒优化模型。最后采用列与约束生成(column and constraint generation,C&CG)算法对模型进行求解,在改进的IEEE-99节点上进行算例分析,验证了文中所提模型的有效性。展开更多
The micro content and the C-distribution of micro normal paraffin hydrocarbon in naphthenic base transformer oil are analyzed and determined by GC-MS.The repeatability of the Quantitative analysis by mass chromatogram...The micro content and the C-distribution of micro normal paraffin hydrocarbon in naphthenic base transformer oil are analyzed and determined by GC-MS.The repeatability of the Quantitative analysis by mass chromatogram and internal standard method is high,and the recovery is 95%-105%.Normal paraffin hydrocarbons from C13-C23 were affirmed in naphthenic base transformer oil and their content is less than 1%.展开更多
文摘针对分布式光伏出力的不确定性对新型配电网合环运行产生的影响,文中提出了一种考虑合环电流约束的新型配电网负荷均衡分布鲁棒优化模型。考虑新型配电网合环电流的稳态约束和暂态约束,建立了新型配电网负荷均衡优化模型。在此基础上,采用K-means聚类对分布式光伏出力历史数据进行聚类,得到具有代表性的典型场景,同时考虑1-范数和∞-范数对置信区间的约束,建立考虑合环电流约束的新型配电网负荷均衡分布鲁棒优化模型。最后采用列与约束生成(column and constraint generation,C&CG)算法对模型进行求解,在改进的IEEE-99节点上进行算例分析,验证了文中所提模型的有效性。
文摘The micro content and the C-distribution of micro normal paraffin hydrocarbon in naphthenic base transformer oil are analyzed and determined by GC-MS.The repeatability of the Quantitative analysis by mass chromatogram and internal standard method is high,and the recovery is 95%-105%.Normal paraffin hydrocarbons from C13-C23 were affirmed in naphthenic base transformer oil and their content is less than 1%.
