基于无功电压满维灵敏度的大规模风电场电网VCA方法研究  

A method research for VCA of power network with large wind farm integrated based on reactive voltage full-dimensional sensitivity matrix

作　　者：高道春[1] 卢继平[1] 王晓健 乔梁[1] 丁然[1] 蒋望[1] 

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆400030 [2]三峡水力发电厂,湖北宜昌443000

出　　处：《电力系统保护与控制》2011年第8期11-17,共7页Power System Protection and Control

基　　金：重庆市科委科技计划攻关项目(CSTC2008AB3047);中央高校基本科研业务费资助(CDJXS10150008)

摘　　要：提出一种包含大规模风电场电网的VCA(电压控制分区)方法:将风电场最经常出现工况的功率作为其在潮流计算中注入功率,求出该工况下包含所有节点耦合信息且计及PV耦合的无功电压满维灵敏度矩阵;利用定义的电气距离使电源节点和负荷节点同步参与聚类分区过程,一次性得到分区结果,优于传统只对负荷节点进行分区再人为将电源节点归并的方法。采用风电场最常出现的工况功率,分区结果可以适应于风电场的大部分出力工况。通过对包含大规模风电场的IEEE39节点系统进行了动态分区,验证了该方法的可行性。This paper proposes a method for VCA of power network including large wind farm：take the most frequently occurred condition power of wind farm as the input power of flow calculation,then get the reactive voltage full-dimensional sensitivity,which implies the coupling information of all buses and decoupling of PV buses;all power buses and load buses can be clustered simultaneously based on the defined electrical distance,the result is obtained just through one step,which is more reasonable than the traditional method that only partitions load buses first then mergers power buses artificially;using the most frequently occured condition power of wind farm,the partition result can adjust to most of wind farm conditions.Finally the efficiency of the proposed method is verified by partitioning the IEEE39 buses system including large wind farm dynamically.

关 键 词：风电场 电压控制分区 无功电压满维灵敏度阵 PV耦合 图论聚类 

分 类 号：TM614[电气工程—电力系统及自动化]