how can i create RMS and frequency detector?

Question

Tharaya Alzaabi 2017-3-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327914-how-can-i-create-rms-and-frequency-detector

回答： Sam McDonald 2017-3-7

I am trying to create a model that will detect the RMS and the frequency(f) of a real sinewave signal. In such way that i can ply with the values and create changes in both f and RMS of the signal and show the results in scopes. The input signal i have is the voltage output of PV inverter and it was measured using dSpace.

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Answer 1

Sam McDonald 2017-3-7

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327914-how-can-i-create-rms-and-frequency-detector#answer_257724

The following links may be useful for you:

Documentation page for RMS block in the DSP System Toolbox: https://www.mathworks.com/help/dsp/ref/rms.html

Simulink may be the most suitable platform for what you are looking to do. A previous post on ways for detecting frequency of a signal in Simulink is here:

https://www.mathworks.com/matlabcentral/answers/102593-how-can-i-determine-the-frequency-of-a-signal-in-simulink

You will want to visit the dSPACE website for learning how to incorporate your hardware with a Simulink model, if you have not already done so:

https://www.dspace.com/en/pub/home/products/systems/controldesign/matlabsimulinkstateflow.cfm