双九相同步电机定子漏感计算  

Calculation of Stator Leakage Inductances of Dual Nine-phase Synchronous Machine

作　　者：晏明[1] 马伟明[1] 欧阳斌[1] 马名中[1] 卢露[1] 孙兆龙[1] 

机构地区：[1]舰船综合电力技术国防科技重点实验室(海军工程大学),湖北省武汉市430033

出　　处：《中国电机工程学报》2016年第2期524-531,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51407190;51477178)~~

摘　　要：双九相同步电机是一种新型多相电机,目前鲜见相关研究文献。为计算双九相同步电机数量多达数百的定子漏感参数,文中简述了该电机绕组布置形式,根据双九相同步电机槽漏磁场、端部磁场和谐波磁场的特点,采用数值计算方法推导了定子槽漏感、端部漏感和谐波漏感计算方法。槽漏感计算从单个槽出发,采用对槽形进行分区域和分片的方法计算磁场能量;端部漏感计算从单个线圈出发,采用离散化的Biot-Savart定律计算磁场磁链,其中端部线圈分段采用大段划分和小段细分的方法,磁通积分区域网格化离散采用不同区域不同离散网格的方法,谐波漏感计算从单个线圈出发,并考虑电机斜槽对谐波漏感的影响,利用总电感减去基波电感的方法进行计算。所用分析方法通用性强,对绕组连接结构复杂的多相电机定子漏感参数计算优势明显。通过理论计算数据与实验室小型原理样机的试验数据对比分析,间接验证了所用计算方法的正确性,为工程样机的各种性能分析和含有双九相同步电机的系统分析计算提供参考。The dual nine-phase synchronous machine is a new type of multiphase machine, on which there is rare literature. In order to calculate hundreds of leakage inductances of the dual nine-phase synchronous machine, the layout of armature windings was sketched. According to the characteristics of the stator leakage magnetic field, the methods to analyzing and calculating stator slot leakage inductances, harmonic leakage inductances and end-winding leakage inductances were provided. Based on a slot, the slot leakage inductances were calculated by slot magnetic field energy with subregions and slices. Based on a coil and Biot-Savart＇s law, the end-winding leakage inductances were calculated by end winding magnetic flux with dividing the natural end-winding segments of the coil into many micro-segments and different grids in different flux integral regions. Based on a coil and a skewed slot, the harmonic leakage inductances were calculated by subtracting the fundamental inductance from the total inductance. The proposed analysis methods are of versatility, which are especially suited to calculate leakage inductance parameters of the multi-phase synchronous machine with complicated winding connections. The validity of the proposed methods are confirmed by comparisons between the simulation results and test results, which are obtained on tests of a prototype. Theoretical basis is established for the analysis of the performance of this machine and related systems.

关 键 词：同步电机 双九相 定子漏感 槽漏感 谐波漏感 端部漏感 

分 类 号：TM343[电气工程—电机]