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PSCAD仿真出的波形如何在MATLAB中进行FFT

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发表于 2012-3-26 19:43:26 | 显示全部楼层 |阅读模式

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我是个菜鸟,刚学PSCAD不久,MATLAB也不怎么会。现在我要将在PSCAD中仿真出的波形进行频谱分析,于是将波形导出到了A.TXT文件中,然后用MATLAB进行读取,分析。这里遇到一个问题,我怎么对这些数据进行FFT变换,波形函数需不需要表示出来?请问各位高手,我应该怎么办。附件A是我的波形数据和matlab中的画出的波形。

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TXT数据波形和画出的波形

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    liyunbb 发表于 2016-11-21 22:376 |/ i) @0 {; l) W* B7 G; Q) @
    遇到同样的问题,同求

    , ~7 |. C  S, l) y5 S你好,请问你的FFT问题解决了吗?
    ! x6 }. u4 F( B1 P
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    mingyu 发表于 2012-3-27 16:18
    , r( c! P5 k, y( O4 u% W回复 1# 不懂就问
    5 x9 c! V: O$ k  s9 S( i: \) {" {
    可以显示柱状图的呀6 p0 r  t5 Y( X) G) |' F) ?- v
    7 R& C8 ]! \5 m% D% Y
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    发表于 2017-6-10 22:29:40 | 显示全部楼层
    怎么将pscad的故障波导出到matlab,再进行进行小波变换分析呢?
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     楼主| 发表于 2012-3-26 19:45:19 | 显示全部楼层
    顶起,求解答
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    发表于 2012-3-26 22:06:46 | 显示全部楼层
    你导出也就是一堆的数,在matlab里分析的也是一堆数,平时怎么分析就怎么弄好了
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    发表于 2012-3-27 16:18:04 | 显示全部楼层
    回复 1# 不懂就问
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    # p1 _1 U* `; Y9 ~1 R    我以前发过类似的帖子,在PSCAD中可以进行动态FFT分析。但是不能直接显示为MATLAB中那种柱状图,把数据导出后要进行稍微处理一下,变成y=(Am,50n(n=1、2、3...)形式,在用plot或figure。
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    发表于 2012-3-27 18:58:51 | 显示全部楼层

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     楼主| 发表于 2012-3-31 15:30:51 | 显示全部楼层
    回复 4# mingyu
    2 Y6 n  T7 B% c: k2 i" t+ x2 f
    % ~& l0 i% [" d' _' X" b9 W$ `# U' G# P* L谢谢,我试一下
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    发表于 2012-4-1 21:38:49 | 显示全部楼层
    楼主有结果了吗
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    石城大海了,又没人回答?
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     楼主| 发表于 2012-4-25 15:17:39 | 显示全部楼层
    有人回复啊,楼主一直都在
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    发表于 2012-5-3 14:19:11 | 显示全部楼层
    同求啊
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