基于模糊理论的输电网络电压无功控制策略  

Voltage and reactive power control strategy of transmission networks based on fuzzy theory

作　　者：贾俊青[1] 段玮頔 JIA Junqing;DUAN Weidi(Reliability and Power Quality Technology Center,Inner Mongolia Electric Power Research Institute,Hohhot 010020,Inner Mongolia,China)

机构地区：[1]内蒙古电力科学研究院可靠性及电能质量技术中心,内蒙古呼和浩特010020

出　　处：《沈阳工业大学学报》2024年第1期35-41,共7页Journal of Shenyang University of Technology

基　　金：国家自然科学基金项目(61501285);内蒙古电力科学研究院项目(2020-71)。

摘　　要：为解决新能源、电动汽车、储能等新技术应用下,高复杂度电力系统电压稳定控制问题,提出了一种基于模糊理论的输电网络电压无功控制策略。该方法引入模糊理论中的隶属度函数,根据系统节点与不同分区之间的耦合程度制定无功控制策略。根据灵敏度计算网络各个节点之间的电气距离,通过模糊聚类算法对节点进行初步分区,并采用聚类融合算法对聚类产生的多个结果进行融合,从而得到最终分区结果。根据关键节点对各个分区的隶属度制定主辅控制策略。IEEE30节点输电网络的算例分析表明,该控制策略可以有效实现对无功功率的控制。In order to solve the voltage stability control problems for high-complexity power systems under the background of new energy,electric vehicles,energy storage and other new technologies,a voltage and reactive power control strategy for transmission networks based on fuzzy theory was proposed.This method introduced the membership function in fuzzy theory,and formulated reactive power control strategies according to the coupling degree between system nodes and different partitions.In addition,the electrical distance among each node of the network was calculated according to the sensitivity analysis;the fuzzy clustering algorithm was used to perform the preliminary partition for the nodes;the clustering fusion algorithm was used to perform fusion calculation of the multiple results generated by the clustering for the final partition results.The primary and secondary control strategies based on the membership of key nodes to each partition were thus formulated.Test example of IEEE 30 bus system was simulated accordingly.The results show that this strategy can control reactive power effectively.

关 键 词：无功控制 电压分区 电压稳定 模糊隶属度 模糊聚类 聚类融合 控制策略 数据分析 

分 类 号：TM711[电气工程—电力系统及自动化]