Why does my closed-loop response with MPC look like this?
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![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1627578/image.jpeg)
With the above configuration, I want to obtain a closed-loop frequency response using Bode Plot Simulink. My desired range is from 10Hz to 10KHz, but as shown in the below figure
- Blue ------ PI controller closed-loop response
Yellow, Orange, Purple ----- MPC closed-loop responses
Why MPC responses are like that? I want to compare PI and MPC controller responses, but stuck in a problem as mentioned.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1627583/image.jpeg)
MPC controller responses zoom in, I am not sure why responses are like that.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1627588/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1627593/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1627598/image.jpeg)
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