光伏并网的宽频振荡问题分析  

Analysis of Broadband Oscillation Problem of Photovoltaic Grid Connection

作　　者：苏乐 程静[1,2] 王维庆[1,2] SU Le;CHENG Jing;WANG Weiqing(School of Electrical Engineering,Xinjiang University,Urumqi 830047,Xinjiang,China;Engineering Research Center of Renewable Energy Generation and Grid-connected Technology Ministry of Education,Urumqi 830047,Xinjiang,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047 [2]可再生能源发电与并网技术教育部工程研究中心,新疆乌鲁木齐830047

出　　处：《电气传动》2023年第9期72-80,共9页Electric Drive

基　　金：新疆维吾尔自治区科学技术厅重点实验室开放课题(2020D04048)。

摘　　要：近年来,新能源并网所引发的电力系统宽频振荡问题频发,光伏电站作为新能源当中的重要组成部分,对电力系统的稳定性造成的影响不容忽视。为了探究光伏并网的宽频振荡问题,建立了详细的光伏发电系统的线性化数学模型,然后采用模态分析法研究了各个振荡模态与光伏系统之间的联系,并根据光伏发电系统对振荡模态的具体影响对其参数进行优化,提高了系统的稳定性。最后通过仿真验证了数学建模及理论分析的正确性。In recent years,the broadband oscillation of power system caused by new energy grid-connected occurs frequently.As an important part of new energy,photovoltaic power station can't be ignored.In order to explore the broadband oscillation of photovoltaic grid-connected,a detailed linear mathematical model of photovoltaic power generation system was established,then the relationship between each oscillation mode and photovoltaic system was studied by modal analysis,its parameters was optimized according to the specific influence of photovoltaic power generation system on oscillation mode,and the stability of the system was improved.Finally,the correctness of mathematical modeling and theoretical analysis was verified by simulation.

关 键 词：光伏并网 宽频振荡 模态分析 参与因子 

分 类 号：TM712[电气工程—电力系统及自动化]