SVC无功检测  

SVC reactive power detection

作　　者：李佳鑫 刘红兵[1] 王霄 Li Jiaxin;Liu Hongbing;Wang Xiao(Taiyuan University of Science and Technology School of Electronic Information Engineering, Taiyuan Shanxi 030024, China)

机构地区：[1]太原科技大学电子信息工程学院,山西太原030024

出　　处：《电气传动自动化》2018年第2期29-32,36,共5页Electric Drive Automation

摘　　要：SVC是近年来在变电系统或用电设备上广泛采用的一种无功补偿方式,SVC投切控制角的控制精度对SVC吸收或补偿系统无功至关重要,在很多现有的应用中,存在投切角计算误差较大的问题,在使用过程中会出现投切错误及电能的浪费,经过分析,投切角误差较大的原因之一是因为测量回路及计算方法存在误差;本文介绍了一种优化的基于傅里叶分析测量法的算法,并在(太钢一炼)电弧炉项目中进行了应用,结果表明,该种方法效果较好,有推广价值。SVC is a reactive power compensation method widely used in substation systems or electrical equipment in recent years.The control accuracy of SVC switching control angle is very important for SVC absorption or compensation system reactive power.In many existing applications,there is a problem that the calculation error of the throwing angle is large.In the process of use,there will be a throwing error and a waste of electric energy.After analysis,one of the reasons for the large error in the cutting angle is because there are errors in the measurement loop and the calculation method;An optimized algorithm based on Fourier analysis and measurement method was applied in the electric arc furnace project of Taiyuan Iron and Steel Co.,Ltd.The results show that the method has good effect and popularization value.

关 键 词：SVC 无功补偿 傅里叶分析测量法 开关角计算 

分 类 号：TM732[电气工程—电力系统及自动化]