基于UPFC优化10 kV线路高损问题应用研究  

Application Research on Optimization of High Losses of the 10 kV Transmission Line Based on UPFC

作　　者：陈乃兴 冯欣玉 江盼 苟海峰 张仁英 CHEN Naixing;FENG Xinyu;JIANG Pan;GOU Haifeng;ZHANG Renying(State Grid Longnan Power Supply Company,Longnan 742500,Gansu,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China;State Grid Wenxian County Power Supply Company,Longnan 746400,Gansu,China;State Grid Liangdang County Power Supply Company,Longnan 742500,Gansu,China)

机构地区：[1]国网陇南供电公司,甘肃陇南742500 [2]西安理工大学电气工程学院,陕西西安710054 [3]国网文县供电公司,甘肃陇南746400 [4]国网两当县供电公司,甘肃陇南742500

出　　处：《电网与清洁能源》2021年第4期95-100,共6页Power System and Clean Energy

基　　金：国家自然科学基金项目(51077109)。

摘　　要：针对含小水电电网在丰水期相关变电站的线路线损率过高的问题,对10 kV并网线路加装UPFC以降损调压。首先分析UPFC基本工作原理,分别从无功调节特性、潮流调节特性2方面分析并网线路加装UPFC后在降低线路损耗方面的优越性;然后以甘肃省某供电公司所辖某线路相关变电站为例,对部分变电站中线损率过高的并网联络线路加装UPFC并进行降损研究;最后利用电力系统仿真软件PSASP自定义实现进行仿真验证,仿真结果表明:对10 kV并网线路加装UPFC后降低线路线损率与母线电压的效果显著。研究结果对优化并网线路线损率过高的问题具有指导意义。In order to address the high line loss rate of related substation lines of the power grid with small hydropower stations in wet season,UPFC is installed on the 10 kV gridconnected lines to reduce loss and adjust voltage.First,the basic working principle of UPFC is analyzed,and the advantages of the installed UPFC on the grid-connected line in reducing line losses are analyzed two aspects:reactive power regulation characteristics and power flow regulation characteristics.Second,taking the related substations of a certain transmission line in Gansu Province as an example,UPFC is installed on the grid-connected line of high loss for the loss reduction research.Finally,the user-defined implementation of the power system simulation software PSASP is used for simulation verification.The simulation results show that installation of UPFC on the 10 kV grid-connected line has substantial effects in reducing the line loss and bus voltage.The research results have guiding significance for the optimization of grid connected lines of high line loss.

关 键 词：水电丰水期 UPFC 变电站 线损率过高 

分 类 号：TM712[电气工程—电力系统及自动化]