齿谐波励磁的混合励磁发电机温度场计算与分析

发布时间：2018-07-05 19:35

本文选题：齿谐波励磁 + 混合励磁　；参考：《南昌大学》2017年硕士论文

【摘要】：齿谐波励磁的混合励磁发电机是一种新型的混合励磁发电机,准确计算该电机的各部分损耗及温度场,对其优化设计具有非常重要的意义。因此,本文主要围绕该电机的损耗及温度场进行研究,探讨主要设计参数对该电机温度的影响。简述了齿谐波励磁的混合励磁发电机基本结构和工作原理,分析了电机各部分损耗计算方法,并借助有限元软件,计算了该电机的定、转子铁耗、永磁体涡流损耗以及附加损耗。分析了定子槽口宽度、气隙长度和永磁体厚度等设计参数对齿谐波电动势的影响,结果表明:在其他设计参数一定时,定子槽口越大、气隙越小、永磁体充磁方向越厚,转子齿谐波电动势越大。同时计算了这些设计参数对定、转子铁耗的影响。结果表明:气隙长度越小、永磁体充磁方向越厚,电机定、转子铁耗越大,而定子槽口宽度越大,定子铁耗略有减小。推导了齿谐波励磁的混合励磁发电机二维温度场计算模型,采用Maxwell和Fluent软件相结合的方法对其温度场进行计算,得到了定、转子温度分布云图,可以准确把握发电机的温度分布情况,并计算了设计参数对该电机温度的影响。结果表明:发电机温度主要集中在定、转子铁心内和绕组处,与实际吻合,验证了温度场计算的正确性,为该电机的优化设计提供了依据。
[Abstract]:The hybrid excitation generator with tooth harmonic excitation is a new type of hybrid excitation generator. It is very important to calculate the loss and temperature field of each part of the generator accurately. Therefore, this paper mainly focuses on the loss and temperature field of the motor, and discusses the influence of the main design parameters on the temperature of the motor. In this paper, the basic structure and working principle of the hybrid excitation generator with tooth harmonic excitation are briefly introduced, and the calculation method of the loss of each part of the motor is analyzed, and the iron loss of the stator and rotor of the motor is calculated by means of the finite element software. Permanent magnet eddy current loss and additional loss. The influence of design parameters such as stator slot width, air gap length and permanent magnet thickness on tooth harmonic electromotive force is analyzed. The results show that the larger the stator slot, the smaller the air gap, the thicker the magnetization direction of permanent magnet, when the other design parameters are fixed, the bigger the stator slot is, the smaller the air gap is. The greater the harmonic EMF of the rotor teeth. At the same time, the influence of these design parameters on the iron loss of stator and rotor is calculated. The results show that the smaller the air gap length, the thicker the magnetization direction of permanent magnet, the greater the iron consumption of stator and rotor, and the larger the width of stator slot, the smaller the stator iron loss. The 2-D temperature field calculation model of hybrid excitation generator with tooth harmonic excitation is derived. The temperature field of hybrid excitation generator is calculated by using Maxwell and fluent software, and the temperature distribution cloud diagram of stator and rotor is obtained. The temperature distribution of the generator can be accurately grasped, and the influence of design parameters on the temperature of the generator is calculated. The results show that the temperature of the generator is mainly concentrated in the core of stator and rotor and the windings, which coincides with the actual situation and verifies the correctness of the calculation of the temperature field, which provides the basis for the optimum design of the motor.
【学位授予单位】：南昌大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM31

【参考文献】