Park and clarke transformation inconsistencies

I am running a simulink model of a PMSM where I transform the three phase currents to the dq frame, afterwards I transform it back to the abc frame and lastly I transform it again to dq frame. In the last transformation I found that the d current is inconsistent with the one of the first step while the q current remains the same. I have checked all the transformation blocks and seem correct. Has any of you experienced this before?

Thanks in advance.

[Joel Van Sickel]

can you share your model?

Answer 1

[Joel Van Sickel]

the model wasn't shared so I'll have to speculate here: If the d/q transforms are providng strange results, it is likely that they are not set to the same axis. There are many d/q transfromer blocks in different libraries so it is easy to mix them up such that they aren't using the exact same reference frame.