宇航计测技术

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有/无铁芯轴向磁通风力发电机性能研究

朱军1；宋丹丹1；李少龙1；韩巧丽2；封海潮1；许孝卓1   

  1. 1、河南理工大学电气工程与自动化学院，焦作 454000；
    2、内蒙古农业大学能源与交通工程学院，呼和浩特 010018
  • 出版日期:2018-08-25 发布日期:2018-08-25
  • 作者简介:朱军（1984-），男，博士，副教授，主要研究方向：新能源发电装备研究。
  • 基金资助:
    国家自然科学基金（U1504506）；河南省重点研发与推广专项（182102210052）；河南省高校基本科研业务费专项资金资助项目（NSFRF140115）。

Comparative Research on Performance of Iron and Ironless Axial Flux Wind Generators

ZHU Jun1；SONG Dan-dan1；LI Shao-long1；HAN Qiao-li2；FENG Hai-chao1；XU Xiao-zhuo1   

  1. 1、School of electrical engineering and automation, Henan Polytechnic University, Jiaozuo 454000，China;
    2、School of energy and transportation engineering, Inner Mongolia Agricultural University, Hohehot Municipality 010018，China
  • Online:2018-08-25 Published:2018-08-25

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摘要： 针对有、无铁芯轴向磁通风力发电机哪种更适合在微风地区使用，对比分析了有铁芯和无铁芯发电机在不同转速时的效率、转矩特性及电能质量。通过对发电机基本参数的确定，建立有、无铁芯发电机3D有限元模型，对比有、无铁芯风力发电机的运行特性，并通过实验平台验证3D有限元计算结果。研究结果表明：发电机在额定运行状态下，磁钢用量相同时，有铁芯发电机效率比无铁芯发电机效率高4.2%,但有铁芯发电机存在齿槽转矩，发电机运行平稳性差；在磁钢用量及电枢绕组匝数相同时，无铁芯发电机效率比有铁芯发电机效率高0.3%且启动力矩更小；当磁通量相同时，无铁芯发电机效率比有铁芯发电机效率高5.7%，综上所述无铁芯发电机更适合在微风低速下运行。

关键词: 磁通, 发电机, 微风启动, 电磁转, 无铁芯, 效率, 稳定性

Abstract: Aiming at choosing the axial flux wind generators between iron and ironless which is more suitable for using in breeze areas, the efficiency and torque and power quality for the two kinds of generators were compared and analyzed at different speeds. The 3D finite element model of iron generator and ironless generator were established through determining the basic parameters of generator to compare their operation characteristics, and then the calculation results of 3D finite element were verified through the experimental platform.The results indicate that: under rated running state ,the efficiency of iron wind generator is 4.2% higher than ironless wind generator with the same amount of magnetic steel ,but there is cogging torque of core generator, so the running stability is poor.When the amount of magnetic steel and the number of armature winding turns are the same, the efficiency of ironless wind generator is 0.3% higher than iron wind generator with a smaller start torque.When the magnetic flux is the same, the efficiency of ironless wind generator is 5.7% higher than iron wind generator.Above all, ironless wind generator is more suitable in breeze areas for low speed operation.

Key words: Magnetic flux, Electric generator, Breeze start, Electromagnetic torque, Coreless, Efficiency, Stability

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