Scott变压器绕组变形在线监测研究

Study on On-line Monitoring of Deformation of Scott Transformer Winding

通过对Scott变压器的理论分析,提出利用在线监测原、次边电压和电流,实时计算绕组的短路电抗来判断Scott变压器绕组变形的方法。仿真计算表明,变压器运行条件和外部因素的变化对短路电抗测量影响甚小。该方法可以为运行中的Scott变压器绕组提供准确的监测信息。

Based on theoretical analysis of Scott transformer,the method of detecting the winding deformation for the Scott transformer is proposed. The method is based on on-line monitoring of primary and secondary currents and voltages to carry out real-time computation of the short-circuit reactance of windings. The simulation results show that the changes of the operation condition of transformer and the external factors will not influence the accuracy of the short-circuit reactance of windings. The method can provide veracious information of monitoring for on line operation of Scott transformer winding.