field-oriented control for induction motor

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ayoub reffai
ayoub reffai 2022-5-25
回答： Sam Chak 2022-5-31
hello
please i need help , i intented to make a field-oriented control on the induction machinbe , but the torque nor the speed cant follow the refrenced values put on the input , i dont know how to fix the problem if you can help me ill be for ever gratefull thank you
  2 个评论
Sam Chak
Sam Chak 2022-5-25
Hi @ayoub reffai
Can you summarize the diagram with some math equations? For example, some differential equations that describe the motion of the induction motor. Without a mathematical model, you will have to rely on the inexplicable A.I or auto-tuning algorithm to do the job for you, and you have to trust the results and hope that they are reliable in ALL CASES.
ayoub reffai
ayoub reffai 2022-5-31
how can i do that , i tried to put equations but where to put them and how to proceed , thanks for the previous answer

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Sam Chak
Sam Chak 2022-5-31
Hi @ayoub reffai
Don't give up!
If you can extract the mathematical model (differential equations / state-space model) from the Simulink file, then it helps you to gain an insight into the control design problem. If the motor has a single Operating Point, then you can look into the linearize() function to obtain a linearized model at that point. There are miscellaneous examples here:
https://www.mathworks.com/help/slcontrol/ug/linearize.html
Otherwise, it can be time-consuming to manually tune the motor controller because you don't know where you are heading to.

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