PID Tune: Plant cannot be linearized. Why?
조회 수: 76 (최근 30일)
이전 댓글 표시
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
댓글 수: 0
채택된 답변
Arkadiy Turevskiy
2014년 6월 18일
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.
댓글 수: 0
추가 답변 (1개)
Norman
2014년 6월 19일
댓글 수: 7
Sharjeel Khan
2020년 12월 25일
@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
2021년 6월 21일
Did you guys find anything? Please let me know if you find anything. Thanks in advance. (mail ID: ee18b040@iittp.ac.in)
참고 항목
카테고리
Help Center 및 File Exchange에서 PID Controller Tuning에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!