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[讨论] 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。

A.rar

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TXT数据波形和画出的波形

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    发表于 2016-12-27 17:20:29 | 显示全部楼层
    liyunbb 发表于 2016-11-21 22:37
    2 D2 \% b# G4 f0 C遇到同样的问题,同求
    $ ~/ v: y6 }# ^1 N3 H
    你好,请问你的FFT问题解决了吗?
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    mingyu 发表于 2012-3-27 16:18, Z* o  _8 W3 q4 h- ~$ V  e7 j* K
    回复 1# 不懂就问
    4 P# n* T0 v, `1 H( ?
    可以显示柱状图的呀0 t3 ~7 L9 |* }( Y$ v  N8 V& d
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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?' `: a( {! N% }3 \5 T$ v
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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 0 j( D2 `( l5 f6 p2 b
    6 I6 ]- U* E/ v* h7 ~# _

    $ t& i7 h- k% ]) X0 J" _    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
    " m, t7 A+ X$ o' x% O8 S6 R. q( y
    ( M% V/ {5 e& m$ U! X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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    发表于 2012-4-2 21:30:53 | 显示全部楼层
    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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