【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。更多还原

【Abstract】 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/SIMULINK 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.更多还原