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.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
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)
