递推最小二乘法在变压器绕组参数辨识中的研究应用  

Application of Recursive Least Squares Method in Transformer WindingParameter Identification

作　　者：党琪[1] 张江滨[1] 

机构地区：[1]西安理工大学,西安710048

出　　处：《计算机与数字工程》2016年第8期1429-1435,共7页Computer & Digital Engineering

摘　　要：变压器是电力系统最重要的电气设备之一,根据绕组变形进而引起的绕组漏电感参数变化这一特征,故对绕组参数在线辨识提出了更高的要求。论文利用双绕组变压器模型,采用递推最小二乘算法,对绕组的漏电感参数进行辨识。通过Matlab/SIMULINK对某一简单的系统的仿真,结果表明该算法不受负载率及其功率因数的影响,能够准确地识别变压器绕组参数,对绕组状态进行在线监测。Transformer is one of the most important electrical equipments in power system. With the characteristic of leakage inductance change caused by winding deformation, on-line parameters identification of transformer winding is put forward higher requirements. In this paper, double winding transformer modelis simulated and the least square method is adopted to realize accurate on-line identification of the transformer parameters. The simple system is simulated by Matlab/SIMU-LINK and the resultis shows that the algorithm is not affected by the load factor and power factor. The algorithm can identify the transformer winding parameters accurately and achieve on-line monitoring.

关 键 词：变压器 递推最小二乘法 参数辨识 

分 类 号：TM41[电气工程—电器]