摘要
在分析单相双绕组变压器数学模型的基础上,建立一种以磁链作为状态变量的单相变压器内部故障仿真模型.基于所建模型,对双绕组变压器正常运行时典型励磁涌流和绕组匝地匝间短路故障时一次侧电流进行仿真计算及特性分析,仿真波形与理论分析相吻合,验证了所建模型的正确性和有效性.
Based on the mathematical model, a simulation model of the single-phase transformer with an internal fault is established in this paper. In this model, the flux linkages are used as the state variables. The secondary open-circuit termination is simulated to examine the phenomena of in-rush currents during the energization of a transformer according to the model. Moreover, an internal fault in the secondary winding is also simulated and analyzed. The simulation results verify theoretical analysis. The reasonableness and validity of the model are verified by the simulation results. A novel and effective method are offered for the analysis and designing of the transformer.
出处
《江南大学学报（自然科学版）》
CAS
2005年第2期111-115,共5页
Joural of Jiangnan University (Natural Science Edition)
基金
江苏省自然科学基金项目(BK2002068)资助课题
