摘要
风力发电机在低速高功率场合多采用多极对数的典型特征结构,电励磁双凸极风力发电机设计可以通过多转子极结构设计实现这种多极对数的典型特征结构。然而,转子极数的增加会明显的增加电机的铁耗。针对24-32极电励磁双凸极发电机分别分析了电机不同部分的磁通波形,并运用铁耗独立模型对铁耗进行了傅里叶分析和计算。通过分析和计算得到了电机在额定工作点的铁耗分布和不同负载下的铁耗。最后总结了不同负载下铁耗的变化规律,并通过分析对铁耗的变化规律进行了解释。
Wind generator has a typical characteristic of more pole-pairs number on the occasion of low speed and high power, and DSEG should adopt multi-pole-rotor structure for the corresponding relation of pole- pairs number and rotor pole number. The increase of rotor-pole number leads to the obvious increase of core loss. Flux waveform of different part of 24-32-DSEG was analyzed in this paper, and core loss FE calculation and analysis was made by iron loss separate model. Then core loss distribution in rated operation point and the core loss with different load was obtained. In closing the core loss change law with no-load and different load was summarized, and the explanation for the law was given through the analysis.
出处
《微电机》
2016年第9期19-24,29,共7页
Micromotors
基金
基金项目:大规模非并网风电系统的基础研究(2007CB210300)
关键词
DSEG
仿真
FE分析
铁耗
DSEG
flux waveform
FE analysis
core loss
