simulink -dervitive in the s domain

Question

tomer polsky 2018-5-7

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https://ww2.mathworks.cn/matlabcentral/answers/399457-simulink-dervitive-in-the-s-domain

回答： Birdman 2018-5-7

hello I have a simple question . if for exmaple I use PID controle and its transfer function is :

G1=K*(1+(R/S)+T*S)

and as we know S in the time domain us derivative . the question is there a block in the simulink of derivitive in the S domain and not the time domain

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Answer 1

Birdman 2018-5-7

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https://ww2.mathworks.cn/matlabcentral/answers/399457-simulink-dervitive-in-the-s-domain#answer_319024

derivative.mdl

The only possible way that you are going to implement that is to use a Transfer Fcn block and set its numerator to s and its denominator to something like s+1000, which means that the pole of the transfer function will fade out so quickly that it will not affect the overall response of the transfer function. Run the attached model and see if it works.