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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; o, R( r4 y, y/ a; n
    遇到同样的问题,同求
    ; I2 P9 ?$ p% b/ I1 z- n4 g: @1 i! o% q
    你好,请问你的FFT问题解决了吗?
    % ~3 F4 _: e; V
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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 16:186 y( y. C4 I4 C% H  M. G
    回复 1# 不懂就问

    # s1 d) N- P) t  Z) i* N6 H! P& d可以显示柱状图的呀
    : x0 b: `7 Q( J  M' O5 w6 x& d) P8 g& N8 E& S* V5 [
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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?/ u" N8 w1 ]3 R! D( y7 c
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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 7 k6 D: ]$ S4 r  p6 K! u- y& [4 ?
    1 a1 c; y+ P  c! f) f0 Y. |

    - N. y- g: x/ A- w    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
    # o# i5 X2 i' E2 F( |" @  ^
    & v* T3 g2 K$ v% N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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