CAJ | 학술논문

在双馈异步风力发电机的正常运行中，定子绕组匝间短路是最常见的故障之一，利用有限元法对双馈异步发电机进行分析，并借助有限元分析软件 ANSOFT 中的 Maxwell 2D 模块建立了双馈异步发电机的仿真模型，通过电机运行过程中的涡流损耗分析和仿真，得到了减小涡流损耗的方法。对电机正常运行和不同故障程度情况下的内部磁场进行模拟仿真，对故障情况进行分析，故障的严重程度会直接影响故障相的电磁场和磁通，使整个电机的磁场和磁通分布不再对称均匀。
재쌍궤이보풍력발전궤적정상운행중，정자요조잡간단로시최상견적고장지일，이용유한원법대쌍궤이보발전궤진행분석，병차조유한원분석연건 ANSOFT 중적 Maxwell 2D 모괴건립료쌍궤이보발전궤적방진모형，통과전궤운행과정중적와류손모분석화방진，득도료감소와류손모적방법。대전궤정상운행화불동고장정도정황하적내부자장진행모의방진，대고장정황진행분석，고장적엄중정도회직접영향고장상적전자장화자통，사정개전궤적자장화자통분포불재대칭균균。
In normal operation of double - fed induction wind generator,stator winding inter - turn short circuit is one of the most common faults. Using the finite element method( FEM)analysis of doubly - fed induction generator (DFIG)and with the aid of Maxwell 2D module in finite element analysis software ANSOFT,the paper establishes the simulation model for the DFIG. Through the analysis and simulation on the eddy current loss in the running process of the motor,the method to minimize the loss is obtained. The internal magnetic fields under normal operation and differ-ent malfunction degrees are simulated. The failure conditions are analyzed as well,which shows that severe break-downs can directly affect the electromagnetic field and magnetic flux of the fault phase or fault phases,and make the magnetic field and flux distribution of the motor no longer symmetric.