基于向量相似度的无功电压分区方法的研究  

Reactive power voltage control partitioning based on vector similarity

作　　者：李昌超 鲁宝春[2] 陈凤英[3] 钟元振[3] 张婧芝 李新晓 

机构地区：[1]浪潮集团,山东济南250000 [2]辽宁工业大学电气工程学院,辽宁锦州121001 [3]济宁市技师学院,山东济宁272000 [4]泰能天然气有限公司,山东青岛266071 [5]国网山东莒县工供电公司,山东日照276500

出　　处：《电力系统保护与控制》2014年第14期14-18,共5页Power System Protection and Control

基　　金：辽宁省高等学校优秀科技人才支持计划(LR2011016)

摘　　要：以电力网络无功电压灵敏度为基础,提出基于向量相似度理论的无功电压分区新方法。首先,在分区前,利用广义Tellegen定理计算出网络中每个节点相对于其他节点的无功电压灵敏度,并形成电压无功灵敏度矩阵;其次,利用向量相似度数学方法计算灵敏度矩阵各列的相似度,由此定义了新的电气距离,形成电气距离矩阵;最后,建立模糊相似矩阵,利用模糊聚类理论划分电压控制区域。IEEE-30系统和IEEE-118系统仿真结果表明所提分区方法的准确性和合理性。Based on reactive voltage sensitivity of the power network, this paper proposes a new method about reactive power voltage control partitioning, which bases on vector similarity theory. Firstly, general Tellegen＆#39;s theorem is used to calculate the reactive voltage sensitivity of each node corresponding to other nodes, and the reactive power voltage sensitivity matrix is formed. Secondly, mathematical methods of vector similarity are used to calculate similarity among columns of the matrix, and a new electric range is defined to form electrical distance matrix. Lastly, fuzzy similar matrix is established and fuzzy clustering theory is used to divide voltage control regions. IEEE-30 system and IEEE-118 system show that the method of partition is accuracy and reasonable.

关 键 词：灵敏度 广义TELLEGEN定理 向量相似度 无功电压 

分 类 号：TM714.3[电气工程—电力系统及自动化]