PID Tune: Plant cannot be linearized. Why?
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Hello everyone,
I'm using simulink for simulating a cooling system. When I try to use the tune button on the PID it opens the tuning window and say:
Plant cannot be linearized.
Why is this happening?
The PID is doing is job. I've attached files.
Thank you very much for the help,
Norman
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採用された回答
Arkadiy Turevskiy
2014 年 6 月 18 日
The plant is linearized, but the linearization at t=0 is a gain of zero. Most likely this happens due to initial conditions in the model. You can ask the PID Tuner to linearize the model at a simulation snapshot of say t/2, when everything comes to steady state.
When you do that, the PID Tuner successfully linearizes the model and designs a PID controller.
Here are the snapshots of the steps using R2014a.
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その他の回答 (1 件)
Norman
2014 年 6 月 19 日
7 件のコメント
Sharjeel Khan
2020 年 12 月 25 日
@Ayesha Sandamali i'm also simulating and grid connected PV system. I'm also facing the same problem can you help me with that please??
Yashas S V
2021 年 6 月 21 日
Did you guys find anything? Please let me know if you find anything. Thanks in advance. (mail ID: ee18b040@iittp.ac.in)
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