Varying Current and plotting output power in Simulink

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James Fletcher 2020-3-15

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https://ww2.mathworks.cn/matlabcentral/answers/510999-varying-current-and-plotting-output-power-in-simulink

回答： Aman Vyas 2020-3-18

Hi, I'm trying to vary a current source, and plot it against the output power of my system, such that I can find the current which produces the greatest output power, but I'm having trouble trying to set this up. I tried linking a controlled current source with an array up, but that didn't work. I've added a picture for reference.

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Answer 1

Aman Vyas 2020-3-18

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https://ww2.mathworks.cn/matlabcentral/answers/510999-varying-current-and-plotting-output-power-in-simulink#answer_420680

Hi,

Instead of varying current source, I suggest using a variable resistor, assign range of values to it and observe the waveform of output power. Since variable resistor will serve the same purpose as varying a current source, this approach might help you obtain maximum output power for a given resistance. Later with the formula available you can calculate the current.

Refer to following documentation link:

https://www.mathworks.com/help/simrf/ref/variableresistor.html

Hope this helps !