Field-Weakening Control (with MTPA) of PMSM

조회 수: 20 (최근 30일)
Michael König
Michael König 2021년 10월 8일
편집: Raghunath Rachabattuni 2023년 6월 30일
Hello,
I would like to plot the MTPA curve in Matlab. For this I would need the code.
Has anyone of you already plotted this curve?
Many thanks in advance!
Greeting,
Michael

답변 (2개)

Dakai Hu
Dakai Hu 2022년 5월 5일
Hi Michael,
Are you referring to the MTPA trajectories based on fixed PMSM parameters ? If so, we now have a block in Motor Control Blockset named "MTPA Control Reference" that will generate the MTPA trajectories based on your motor's parameters. See the documentation for that block below:
https://www.mathworks.com/help/releases/R2022a/mcb/ref/mtpacontrolreference.html
If you are looking at plotting MTPA trajetories based on measured nonlinear torque/flux linkage tables, I could possibly help you come up with some MATLAB scripts once you are able to show me some data.

Raghunath Rachabattuni
Raghunath Rachabattuni 2023년 6월 30일
편집: Raghunath Rachabattuni 2023년 6월 30일
Hi
You can refer to the following link to know the the principles behind the MTPA curve of a PMSM, and find how to plot them.
The link shows the equations for MTPA curves with linear lumped parameters for motor. It explains about all the characteristic curves of a PMSM too.
For non-linear parameters (for motors which saturate their core under heavy current operation), further down the page in the link, a block LUT based PMSM Control Reference (Generate lookup-table-based control reference currents for field-oriented control of permanent magnet synchronous motor - Simulink - MathWorks India) is shown, and it creates the MTPA curve based on the non-linear characterization data of the motor.
Hope this helps.

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