期刊文献+

基于正负综合灵敏度的输电断面双层优化潮流控制策略 被引量:2

Double layer optimal power flow control strategy of transmission section based on positive and negative comprehensive sensitivity
下载PDF
导出
摘要 过载线路故障跳闸会使潮流转移到关联输电断面内其他线路上,造成连锁跳闸事故。快速制定合理有效的潮流控制策略,消除线路过载,是防止发生连锁跳闸事故的关键。针对灵敏度分析方法精度不高和直接优化类方法计算量过大等缺陷,文中提出基于正负综合灵敏度的输电断面双层优化潮流控制策略。考虑节点对过载和重载线路潮流的整体调节作用,提出正负综合灵敏度指标,然后通过双层优化方法快速制定潮流控制策略。为防止搜索空间过大导致计算量激增,建立第一层调度节点多目标筛选优化模型,优选参与调整的调度节点。在此基础上构建第二层潮流调控优化模型,得到调度节点的精确出力调整量,从而实现对输电断面潮流越限的精准调度。利用IEEE 39节点系统和某省级电网的仿真分析验证了所提方法的快速性和准确性。 Fault trip of overload line transfers the power flow to other lines in the associated transmission section, which results in interlocking tripping accident. The key to prevent cascading tripping accidents is to quickly formulate a reasonable and effective power flow control strategy to eliminate line overload. In view of the defects of low accuracy of sensitivity method and too much calculation of optimization method, a double-layer optimal power flow control strategy of transmission section based on positive and negative comprehensive sensitivity is proposed. Considering the overall regulation effect of nodes on overload and heavy load line power flow, the positive and negative comprehensive sensitivity index is proposed, and then the power flow control strategy is quickly formulated by double-layer optimization method. In order to prevent the surge of computation caused by too large search space, a multi-objective selecting optimization model of the first layer scheduling nodes is established to optimize the scheduling nodes involved in the adjustment. On this basis, the second layer power flow regulation optimization model is constructed to obtain the accurate output adjustment of the scheduling nodes. The above model realizes the accurate dispatching of power flow out of limit on the transmission section. The simulation results of IEEE 39-bus system and a provincial power grid verify the rapidity and accuracy of the proposed method.
作者 谢大为 王博欣 王京景 彭伟 马英浩 张大波 XIE Dawei;WANG Boxin;WANG Jingjing;PENG Wei;MA Yinghao;ZHANG Dabo(State Grid Anhui Electric Power Co.,Ltd.,Hefei 230022,China;Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving(Hefei University of Technology),Hefei 230009,China;State Grid Rongcheng Power Supply Company of Shandong Electric Power Company,Rongcheng 264300,China)
出处 《电力工程技术》 北大核心 2023年第1期107-115,共9页 Electric Power Engineering Technology
基金 安徽省自然科学基金资助项目(2108085UD08)。
关键词 线路过载 输电断面 连锁跳闸 潮流控制 正负综合灵敏度指标 双层优化 line overload transmission section cascading trips power flow control positive and negative comprehensive sensitivity index double layer optimization
  • 相关文献

参考文献22

二级参考文献251

共引文献564

同被引文献33

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部