| 电机暂态过程电磁场数值计算的一种新方法 |
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| 引用本文： | 苑津莎,张金堂.电机暂态过程电磁场数值计算的一种新方法[J].华北电力大学学报,1993(4). |
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| 作者姓名： | 苑津莎 张金堂 |
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| 作者单位： | 华北电力学院电力系，华北电力学院电力系 |
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| 摘 要： | 为了应用有限元频域算法计算具有相对运动的电机时变电磁场,本文采用了有限元电机气隙单元算法,并对其作了改进,从而大大地减少了计算量,由于电机定、转子上的矢量磁位在频域内分布不同,本文提出了分区算法,解决了定子、转子相对运动时的频域计算问题,最后用—模拟发电机空载特性的计算与实验结果作了比较,对该算法进行了验证。
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| 关 键 词： | 电机 时变电磁场 非线性问题 傅立叶变换 有限元法 |
A NEW METHOD OF CALCULATING TRANSIENT ELECTROMAGNETIC FIELD OF ALTERNATOR |
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| Yuan Jinsha Zhang Jintang.A NEW METHOD OF CALCULATING TRANSIENT ELECTROMAGNETIC FIELD OF ALTERNATOR[J].Journal of North China Electric Power University,1993(4). |
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| Authors: | Yuan Jinsha Zhang Jintang |
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| Affiliation: | Yuan Jinsha Zhang Jintang |
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| Abstract: | The air-gap element and method of finite element in frequency domain are adopted to calculate the transient field of alternator.Improvement are made to reduce its evaluation capacity.To solve slow convergence raised from different field distribution of different frequencies in rotor and stator,separate evaluation method is suggested,by which the problems involving varying relative motion are also resolved.To examine the effectiveness of this method,results of no-load characteristic of a model altemator calculated and tested are presented of comparison. |
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| Keywords: | electric machine electromagnetic fiele Fourier transformation nonlinear problem finite element method |
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