PMSM motor controller model, rotor angle output conversion for Park transform
显示 更早的评论
..
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
采纳的回答
CB
2023-1-10
0 个投票
1 个评论
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.
更多回答（1 个）
Sabin
2023-1-9
0 个投票
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
类别
在 帮助中心 和 File Exchange 中查找有关 Permanent Magnet 的更多信息
Translated by 
