摘要
在多目标优化中,帕累托前沿解集提供了目标函数之间非常有价值的妥协信息,是运行人员进行决策的基础,而NBI(normal boundary intersection)法是均匀产生帕累托前沿解集的有效方法。文中将NBI法引入有功出力优化中,并推导了基于NBI法的置换度指标求解表达式。该表达式可以直观地反映发电机出力成本与安全裕度之间的置换关系,为决策者确定优化方案提供参考依据。算例仿真结果说明了该方法的有效性。
In multi-objective optimization,Pareto front can offer valuable tradeoff information between objectives,which is the basis for decision-making.Normal Boundary Intersection（NBI）is an effective method for evenly generating Pareto optimal solutions.In this paper,NBI method is introduced into generation dispatch,and another valuable index,i.e.degree of substitute index.Its expression is derived based on the NBI method.This index can intuitively reflect the substitute relation between the generation cost and loading margin,providing the decision-maker with important reference to determine the optimization scheme.Simulation results of a numerical example illustrate the validity of the method.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第5期34-37,115,共5页
Automation of Electric Power Systems
基金
国家重点基础研究发展计划(973计划)资助项目(2009CB219703)~~
关键词
有功出力优化
多目标优化
帕累托前沿
NBI法
置换度
generation dispatch
multi-objective optimization
Pareto front
normal boundary intersection（NBI）method
degree of substitute
