分数槽集中绕组极对数谐波抑制方案对比研究  

Comparison Study on Pole Pair Harmonic Suppression Schemes inFractional Slot Concentrated Windings

作　　者：匡建雨 骆皓 孙春阳 朱坤硕 KUANG Jianyu;LUO Hao;SUN Chunyang;ZHU Kunshuo(School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China;Jiangsu Collaborative Innovation Center of Smart Distribution Network,Nanjing 211167,China)

机构地区：[1]南京工程学院电力工程学院,江苏南京211167 [2]江苏省配电网智能技术与装备协同创新中心,江苏南京211167

出　　处：《电机与控制应用》2024年第11期110-121,I0001,共13页Electric machines & control application

基　　金：中国博士后科学基金面上项目(2017M621086);江苏省配电网智能技术与装备协同创新中心开放基金项目(XTCX202405)。

摘　　要：【目的】为解决分数槽集中绕组(FSCW)感应电机绕组磁动势中存在高幅值低次谐波的问题,本文提出了双Y形绕组、星三角形绕组和特定次谐波抑制绕组三种不同谐波抑制方案对非主导极次谐波进行抑制。【方法】首先分析了三种不同谐波抑制方案的基本原理以及在不同极槽配合下各次谐波磁动势的分布规律;其次,推导了不同方案下各次谐波的绕组分布系数与匝数的关系;然后,理论计算了不同谐波抑制方案对各次谐波磁动势的抑制情况;最后,建立FSCW感应电机二维有限元模型,对比分析不同谐波抑制方案下电机的电磁特性。【结果】仿真结果表明,三种谐波抑制方案均能有效抑制非主导极次谐波,降低转矩脉动和电机铁心损耗,但不同谐波抑制方案存在明显差异。【结论】综合考虑不同谐波抑制方案的特点,可为后续电机谐波抑制的选择设计提供参考。[Objective]To address the issue of high-amplitude and low-order harmonics in the magnetomotive force of fractional slot concentrated winding(FSCW)induction motors,this paper proposes three different harmonic suppression schemes:dual Y-shaped winding,star-delta winding,and specific subharmonic suppression winding,aiming to suppress non-dominant pole harmonics.[Method]First,the basic principles of the three harmonic suppression schemes and the distribution patterns of magnetomotive force harmonics under different pole-slot combinations were analyzed.Second,the relationship between the winding distribution factor for each harmonic and the number of turns in different schemes was derived.Then,the theoretical calculation of the suppression effects on the magnetomotive force of various harmonics under different harmonic suppression schemes was carried out.Finally,a 2D finite element model of the FSCW induction motor was established,and the electromagnetic characteristics of the motor under different schemes were compared and analyzed.[Results]Simulation results show that the three harmonic suppression schemes can effectively suppress non-dominant pole harmonics,reducing torque ripple and motor core loss.However,there are significant differences between the schemes.[Conclusion]Considering the characteristics of different harmonic suppression schemes,this study provides a reference for the selection and design of harmonic suppression schemes in future motor applications.

关 键 词：分数槽集中绕组 感应电机 谐波抑制 磁动势 电磁特性分析 

分 类 号：TM346[电气工程—电机]