覃琴;施浩波;周勤勇;韩奕;

• 1:电网安全与节能国家重点实验室(中国电力科学研究院有限公司)

摘要(Abstract)：

兼顾考虑系统强度和直流支撑,以功率转移支撑强度、多直流馈入均衡度、电网平均强度综合最优为目标,建立500kV电网分区的多目标优化模型,并利用带精英策略的非支配解排序遗传算法(elitenon-dominatedsortinggenetic algorithm,NSGA-II)求解,得出Pareto最优的500kV电网分区方案集。开断交流通道是电网分区的实现手段,优化过程中需对500 kV电网的每个通道进行开断分析,计算量大,运行效率低,而且随机搜索空间太大,求得的Pareto解集可能局限于局部网架调整,达不到全局优化、全网分区的效果。提出以特高压变电站为枢纽点的分区模式为约束条件,引入基于复杂社团结构理论的电网分区方法,实现从每个通道到关键通道的降维,缩小了遗传算法的搜索范围,避免了局部Pareto解。以山东规划电网为例进行算例分析,验证模型和算法的有效性。

关键词(KeyWords)： 电网分区;系统强度;直流支撑;多目标优化;NSGA-II算法

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目(XT71-16-028)~~

作者(Author): 覃琴;施浩波;周勤勇;韩奕;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0372

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