Calculate frequency and rate of change of frequency

Question

RASHMI PRASAD 2020-12-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/694520-calculate-frequency-and-rate-of-change-of-frequency

评论： Anuj 2024-4-7

I have volatage and current csv file, please guide me to obtain frequency and rate of change of frequency values in matlab script file using these csv files.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Swetha Polemoni 2020-12-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/694520-calculate-frequency-and-rate-of-change-of-frequency#answer_582667

Hi

To find the frequency components present in a signal, the signal can be transformed into frequency domain and frequencies can extracted by plotting. And you need to have a prior knowledge of sampling frequency with which the signal was sampled in order to calculate the frequencies present. You can use "fft" to convert signal from time domain to frequency domain.

You might find the following answers helpful.

Convert Voltage vs. Time data to frequency domain

Finding the frequency value of a signal

2 个评论
显示无隐藏无

RASHMI PRASAD 2020-12-23

Thank you for the response.

This may not fulfill my cocern as my requirement is frequency of the signal at all instances as I have to obtain the frequency response at the time of fault condition. I have tried Full cycle dft, half cycle dft but there is some error coming at the time of fault instance, so I will be glad if you help me in obtaining an effective method for frequency value in a continuous manner.

Anuj 2024-4-7