![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/175881/image.jpeg)
About PID program block issue of simulink
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The PID block formula in simulink and the standard PID formula is not the same。 The PID block formula in simulink:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158055/image.png)
The standard PID formula:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158056/image.png)
For example, a simple step response, when you build your own PID block, how to design PID program block ?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158057/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158058/image.png)
The parameters of the PID are same :Kp=0.8 Ki=0 Kd=0.85 But the results will be some different。
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158059/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/158060/image.png)
I would like to know how to make the above two simulink procedures to express the same results?
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답변 (1개)
Arkadiy Turevskiy
2016년 12월 7일
PID Controller block supports two forms - parallel and ideal. Ideal form is very similar to the standard form you want.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/175881/image.jpeg)
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