并网光伏电站节点电压越限稳定机理分析  

Analysis of the Stability Mechanism of the Limit Exceeding of the Node Voltage in the Grid-Connected Photovoltaic Power Station

作　　者：廖雍琦 向文凯 范科 LIAO Yongqi;XIANG Wenkai;FAN Ke(Suining Power Supply Company of State Grid Sichuan Electric Power Company,Suining Sichuan 629000,P.R.China;Yibin Power Supply Company of State Grid Sichuan Electric Power Company,Yibin Sichuan 644000,P.R.China;Zigong Power Supply Company of State Grid Sichuan Electric Power Company,Zigong Sichuan 643100,P.R.China)

机构地区：[1]国网四川省电力公司遂宁供电公司,四川遂宁629000 [2]国网四川省电力公司宜宾供电公司,四川宜宾644000 [3]国网四川省电力公司自贡供电公司,四川自贡643100

出　　处：《重庆电力高等专科学校学报》2024年第1期1-4,共4页Journal of Chongqing Electric Power College

摘　　要：随着光伏电站规模迅速扩张,其参与电力系统的无功调节愈发频繁,导致静态电压稳定问题日益凸显。通过构建大型并网光伏电站稳态数学模型,推导并网节点静态电压稳定性影响因素,分析大型并网光伏电站并网节点电压越限机理,为后续大型并网光伏电站在功率与电压优化方面开展研究奠定基础,并利用MATLAB2019a及优化程序MATPOWER7.0搭建模型进行仿真分析。With the rapid expansion of the scale of photovoltaic power stations,their participation in the reactive power regulation of the power system is becoming more frequent,resulting in static voltage stability problems.This paper constructs a steady-state mathematical model of a large-scale grid-connected photovoltaic power station,deduces the factors affecting the static voltage stability of grid-connected nodes,and analyzes the limit exceeding mechanism of the node voltage of large-scale grid-connected photovoltaic power stations,which lays a foundation for subsequent researches on power and voltage optimization of them.MATLAB2019a and the optimization program MATPOWER 7.0 are used to build a model for the simulation analysis.

关 键 词：新能源 光伏电站 静态电压稳定 电压越限 

分 类 号：TM914[电气工程—电力电子与电力传动]