计及操作时间不确定性的电力系统网架重构策略优化  

Optimization of Network Reconfiguration Strategy for Power Systems Considering Operating Time Uncertainty

作　　者：曾顺奇[1] 文福拴[2] 薛禹胜[3] 吴文可[1] 林振智[2] 戴彦[4] 

机构地区：[1]华南理工大学电力学院,广东省广州市510640 [2]浙江大学电气工程学院,浙江省杭州市310027 [3]国网电力科学研究院/南京南瑞集团公司,江苏省南京市210003 [4]浙江电力调度通信中心,浙江省杭州市310007

出　　处：《电力系统自动化》2011年第23期16-21,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51007080);中国博士后科学基金资助项目(20090461352);浙江省电力公司科技项目"浙江电网安全稳定智能预警与协调控制系统"~~

摘　　要：电力系统大停电后的网架重构阶段历时较长,涉及因素众多,是一个多目标、多变量的组合优化问题。发展了计及恢复操作时间不确定性的网架重构方案优化的机会约束规划模型。该模型以恢复的发电节点数和负荷恢复收益作为节点收益,搜索网架重构过程中收益最大的网架重构方案。之后,针对网架重构问题的特点,提出了一种改进的遗传算法求解方法。最后,通过算例说明了所述模型和方法的基本特征。The network reconfiguration procedure after a complete blackout or a local outage usually lasts a relatively long period of time and involves a lot of factors.It can be formulated as a combinatorial optimization problem with multiple variables and objectives.A chance constrained programming（CCP） model for network reconfiguration scheme optimization is developed with the operating time uncertainty taken into account.The node number of the restarted generators and the benefit from the restored loads are taken as the returns from the restoration scheme and the network reconfiguration scheme of maximum returns is searched in the process of network reconfiguration.Then a modified genetic algorithm considering the characteristics of the network reconfiguration scheme optimization problem is proposed.Finally,a sample power system is adopted to demonstrate the essential features of the model and method developed.

关 键 词：电力系统恢复 网架重构 机会约束规划 遗传算法 

分 类 号：TM732[电气工程—电力系统及自动化]