三次样条插值在电弧炉无功补偿中的应用  

Third spline applied interpolation applied in the reactive compensation for arc furnace

作　　者：贾文超[1] 赵欣 

机构地区：[1]长春工业大学电气与电子工程学院,吉林长春130012 [2]国营汉光机械厂,河北邯郸056028

出　　处：《长春工业大学学报》2011年第2期136-139,共4页Journal of Changchun University of Technology

基　　金：国家科技支撑计划基金资助项目(2007BAE17B00)

摘　　要：电弧炉、轧钢机是电力系统中的大负荷,且普遍功率因数较低。其运行过程中产生了大量的冲击电流和无功功率,既造成了能源的浪费,又导致了电力系统电网不稳定。对电弧炉这样一类电力负荷进行精确无功补偿可有效提高电网运行质量。采用TCR+FC型SVC进行补偿,建立的样条插值方程来确定触发角。触发控制角的计算精度直接影响无功补偿的效果。仿真结果表明,该方法误差小,可靠性高。As the large loads in the power system,both the arc furnace and rolling mill have the low power factors.Large impact current and reactive power are generated during the run,which causes the energy wasting and unstable power output.The precision reactive power compensation for arc furnace can improve the quality of the power network.Here the SVC of TCR＋FC model compensation is adopted,and the spline interpolation equation is established to determine the trigger angles.The precision of the angle can directly influence the compensation results.The simulation results show that method is realizable an with low errors.

关 键 词：无功补偿 样条插值 晶闸管 电弧炉 

分 类 号：TM714.3[电气工程—电力系统及自动化]