清空筛选条件
清空筛选条件

PMSM motor controller model, rotor angle output conversion for Park transform

4 次查看（过去 30 天）
CB
CB 2017-2-6
评论： Sabin 2023-1-10
..
Hi,
I am developing a PMSM motor controller model in Simulink, I have the PMSM motor from Simpower systems, it gives the motor rotor angle in radians but when I convert it to electrical angle by multiplying by 3 for the number of pole pairs and give it to Clark and park transforms model, the results are not consistent. It gives a linear ramp, I am not sure how to interpret that, I want the conversion so that the park transform and inverse Park transform will work correctly.
Regards,
CB

请先登录，再回答此问题。

采纳的回答

CB
CB 2023-1-10
Yes I think the a-phase aligned and d-q axis aligned was the issue. How do we know which one to select? can you please elaborate the difference between two alignments?
  1 个评论
Sabin
Sabin 2023-1-10
This alignment is a convention used in the model about how the angle theta is defined. This will have a big impact in the Park transform. For an overview about different axis definitions please check the FEM-Parameterized PMSM doc page. There you can see how different definitions will chnage the Park transform. Please note that in other library blocks we assume that Q leads D, the FEM-Parameterized PMSM includes also the case when D leads Q.

请先登录，再进行评论。

更多回答（1 个）

Sabin
Sabin 2023-1-9
Rotor angle can be seen as a linear ramp when rotor speed is constant. When using it in Park transform the result should be the same as when we reset the angle every 2*pi radians because we need the sin/cos(theta). I suspect the initial angle might be the root cause of mismatch or different axis definition (a-phase aligned with the d or q axis).

社区

更多回答在  Power Electronics Control

类别

在 Help Center 和 File Exchange 中查找有关 Specialized Power Systems 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by