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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
    ' c- s' P; G, ^8 C6 `; k遇到同样的问题,同求
    1 d2 d+ l/ a! K% d) s( J0 l5 |
    你好,请问你的FFT问题解决了吗?3 _4 ~/ {, j" o
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    发表于 2018-9-17 21:28:10 | 显示全部楼层
    mingyu 发表于 2012-3-27 16:18  p  J) w  X% }; F9 Z  s
    回复 1# 不懂就问
    5 H6 C) I  ?  n8 w9 r
    可以显示柱状图的呀
    ( {' @. k. j) P0 z; H9 n* C  e
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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?1 M* P) x! [8 P7 E* K/ h) v: H% R
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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 ( t! s# H. w5 e1 F9 W$ K3 O7 _( t+ S. C

    ' Q' U/ C' ]; h/ b; z. Y  f/ l% _! r7 `; z- Y* C3 n: i
        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
    1 k$ e9 M" W- N4 G* v
    3 _; o2 L- P9 z7 i% O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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