谐波励磁同步发电机旋转气隙磁场计算与分析  

Calculation and Analysis of Rotating Air Gap Field of Harmonic Excitation Synchronous Generator

作　　者：杨剑[1] 

机构地区：[1]泰豪科技股份有限公司,南昌330029

出　　处：《微特电机》2014年第11期18-20,24,共4页Small & Special Electrical Machines

摘　　要：为了准确把握三次谐波励磁同步发电机随转子同步旋转的气隙磁场特性,尤其是旋转的三次谐波磁场的特性,基于有限元方法计算的电磁场结果,推导了随转子同步旋转的气隙磁场的计算方法。应用该方法对一台三次谐波励磁同步发电机有阻尼和无阻尼、直槽和斜槽等情况进行了仿真计算,得到了气隙磁场波形及其3k次谐波分量,分析了阻尼绕组对气隙磁场波形的影响,并从设计的角度提出了有效的解决方案。根据定子齿磁通以及三次谐波绕组匝数,计算得到了三次谐波绕组电压波形,且与实验测试波形基本吻合,验证了计算和分析的正确性,为该类电机的设计提供了理论依据。In order to accurately seize the rotating air-gap magnetic field characteristics of third harmonic excited syn-chronous generator, especially the characteristics of the rotating third harmonic magnetic fiel,based on the calculated elec-tromagnetic field results using the finite element method, the method for calculating the air-gap magnetic field rotated syn-chronously with the rotor was deduced. This method was applied to calculate a third harmonic excited synchronous generatorin the circumstances of damped and undamped, straight and skewed slot etc, and the air gap magnetic field waveform and3k harmonic components were obtained. The effect of damper winding on the air-gap magnetic field waveform was ana-lyzed, and an effective design was proposed. According to the stator tooth flux and the turns of third harmonic winding, andthe third harmonic voltage waveform was obtained. The experimental results verify the correctness of the calculation and a-nalysis, and the work provides the theoretical basis for the design of the machine.

关 键 词：三次谐波 同步发电机 有限元法 齿磁通法 

分 类 号：TM341[电气工程—电机]