磁性槽楔对同步发电机参数与性能的影响  

Influence of Magnetic Slot Wedge on Parameters and Performance of Synchronous Generator

作　　者：张磊 吴新振 ZHANG Lei;WU Xinzhen(College of Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛大学电气工程学院,山东青岛266071

出　　处：《大电机技术》2020年第3期32-35,50,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：本文以三相同步发电机为研究对象,建立有限元仿真模型,分析了径向磁密基波、定子一阶齿谐波、空载励磁电流随不同相对磁导率定子槽楔的变化关系;采用有限元与能量法相结合的方法计算不同相对磁导率槽楔下的定子槽漏抗,并说明其变化规律;对定子磁滞损耗和涡流损耗进行计算,得出定子基本铁耗随不同相对磁导率槽楔的变化情况。综上分析,选择合适相对磁导率的磁性槽楔对提高电机性能有一定效果。In this paper, a three-phase synchronous generator is taken as the research object, and a finite element simulation model is established to analyze the relationship between the fundamental wave of radial flux density, the stator first-order tooth harmonic and the varivation of no-load excitation current versus different relative permeability of stator wedges. The method of combining finite element and energy method is used to calculate the stator slot leakage reactance adopting different relative permeability slot wedges, and its variation law is demonstrated. The stator hysteresis loss and eddy current loss are calculated separately, and the change of basic stator iron loss with different relative permeability slot wedges is obtained. Based on the above analysis, choosing magnetic slot wedges with suitable relative permeability has a certain effect on improving the performance of the generator.

关 键 词：磁性槽楔 定子槽漏抗 齿谐波 电机性能 

分 类 号：TM303.3[电气工程—电机] TM341