考虑最大可观测通道数和关键故障线路约束的PMU优化配置研究  

Investigation of optimal PMU placement considering limited number of channels constraints and critical line constraints

作　　者：樊海锋[1] 徐凯[1] 江全元[1] 宋军英[2] 陈跃辉[2] 张文磊[2] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]湖南省电力公司,湖南长沙410007

出　　处：《机电工程》2013年第10期1240-1245,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家高技术研究发展计划("863"计划)资助项目(2009AA05Z221);国家自然科学基金资助项目(50977082)

摘　　要：针对目前PMU配置模型中考虑的约束难以满足实际需求的问题,提出了一种基于0-1整数规划的PMU配置模型。该模型一方面可以方便地考虑零注入节点的影响,同时结合最大可观测通道数约束;另一方面采取了线路筛选技术,把线路中断后节点电压和线路潮流的越限程度作为筛选指标,获取了关键故障线路集,从而缩小了传统N-1线路校验集合。通过对IEEE-14、30、57、118系统和浙江省电网500 kV(76节点)以及220 kV系统(543节点)的仿真计算,将算例结果和线路N-1条件进行了对比。结果表明,该方法能够有效减少PMU的数目,在提高经济性的同时又保证了系统的可靠性。Aiming at the problem of the constraints involved in the configuration of phasor measurement unit （PMU） in the previous work failing to meet the engineering requirements,a placement model based 0-1 integer programming was investigated.In this model,maximum observable channel constraint and zero injection were considered.Adopting the degree of bus voltage and line power flow constraints violations in the post-contingency as filtering index,the set of key contingencies can be obtained by critical line screening technique.Thus the line set of traditional N-1 checking was narrowed.Numerical simulation was respectively conducted on IEEE 14-bus,30-bus,57-bus,118-bus system,Zhejiang province power grid 500 kV （76-bus）and Zhejiang power grid 220 kV system （543-bus）.Comparing with the N-1 condition （line outages）,the result indicate that the proposed method reduces effectively the number of PMU configuration,and improves the reliability and economic efficiency of the system.

关 键 词：0-1整数规划 相量测量单元 最大可观测通道数 线路筛选技术 

分 类 号：TM712[电气工程—电力系统及自动化] TP24[自动化与计算机技术—检测技术与自动化装置]