基于风险指标与非支配故障筛选理论的安全约束机组组合算法  

Security constrained unit commitment algorithm based on risk index and non-dominated contingency screening theory

作　　者：李大虎[1] 孙建波[1] 陈冰松[2] 郭创新[2] 

机构地区：[1]国家电网湖北省电力公司,湖北武汉430077 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《电力科学与技术学报》2016年第4期65-72,共8页Journal of Electric Power Science And Technology

基　　金：国家重点基础研究发展计划("973"计划)(2013CB228206)

摘　　要：安全约束机组组合(SCUC)是一种常用的电力系统运行调度方法,但在实际的大规模系统应用中需要大量的预想故障及多个时间断面的信息,求解困难。针对如何加快SCUC求解速度的问题,在传统安全约束机组组合算法的基础上,采用改进过载风险指标代替传统的过载严重度指标,结合非支配故障筛选理论,提出一种基于风险指标与非支配故障筛选理论的安全约束机组组合算法。算例结果表明:算法采用的故障集更合理,具有迭代速度快、安全性高和经济性好的特点,可为调度员的实时快速决策提供重要帮助。Security constrained unit commitment（ SCUC） is a method which is frequently used for power system scheduling. However,in the large-scale system application,it＇s difficult to solve the optimization problem due to numerous contingencies and time information. According to the problem of accelerating the speed of solving SCUC,the traditional solution method of SCUC was improved in this paper. By using advanced overload risk index instead of the traditional severity index and the application of non-dominated contingency screening technique,a proved method for SCUC was proposed. The experimental results show that the contingency set of the proposed algorithm is reasonable,and with high iteration speed,safety and economy. The proposed algorithm is of great benefit for dispatcher to make decision in real-time.

关 键 词：风险指标 非支配 故障筛选 安全约束机组组合 

分 类 号：TM734[电气工程—电力系统及自动化]