Calculate frequency and rate of change of frequency

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RASHMI PRASAD
RASHMI PRASAD 2020-12-15
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.

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回答（1 个）

Swetha Polemoni
Swetha Polemoni 2020-12-23
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
RASHMI PRASAD
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
Anuj 2024-4-7
did you got the way to obtain the same ? rashmi maam.

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