^论文字数:28441,页数:77 附任务书,开题报告,文献综述 摘要:无刷双馈电机是一种新型感应电机,它既具有一般感应电机的优点,而且还具备同步电机的优点,所以在风机和水泵调速节能方面有广阔的发展前景。该文详细分析的电机的基本的工作原理,推导出电机的转速,电磁功率和转子感应频率等计算公式,以及在谐波分析的基础上,提出了采用改变每相线圈数和调整线圈分布的方法来抑制高次谐波。文章的前两章是介绍无刷双馈电机研究的背景和意义与无刷双馈电机转子绕组的原理;然后建立笼型转子绕组的谐波磁势数学模型,并且用MATLAB编写计算程序;最后分别对极对数为P=5的功率绕组和P=1的控制绕组在转子中建立的转子磁动势谐波. Rotor MMF Harmonic Analysis of Brushless Doubly-FED Machine Abstract:The brushless doubly-fed machine (BDFM)is a new type of induction machine, with good application prospects。It combined the merits of the asynchronous motor with the squirrel-cage rotor with and wound-rotor and the electro-excited synchronous motor.It is very suitable for driving windmills or water pumps toperform speed-adjusting and energy-saving operation.In this paper, the operational principle of BDFM is analyzed in detail and the equations of the rotor speed,power and rotor frequency ale derived .After the harmonic analysis,the approach to decrease higher harmonic is presented by changing numbers of each stator windings and adjusting the distributions of rotor bars.The front of tow chapters of the article are introducing the background and significance of the BDFM researching and the theory of the rotor winding of the BDFM ;Finally, the theory an d method of electromagnetic design for BDFM ale discussed in detail with examples.then the article would establish the harmonic magnetic force mathematical model of the squirrel-cage rotor, also use MATLAB compile the account proceeding ;finally the article would separate to analysis The Rotor MMF Harmonic of the and the .
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Tags:双馈 发电机 转子 谐波 分析研究 | 2012-01-12 11:14:52【返回顶部】 |