current and encoder sensors' data

enrico1

Hello Wolfspeed community,

I am trying to create a closed loop control for the inverter CRD300DA12E-XM3 300kW Three-Phase Inverter | Wolfspeed, the current I acquire is very disturbed since the acquisition PIN ADC of the micro 0V - 3V. (same situation also for encoder)

The current I acquired is shown in the following picture with I=2.5A rms and T sample=1*10^-4 s.

With these shapes, the regulator follows an incorrect behavior and the response is wrong.

Have you found a similar problem? How could I fix this?

Thank you in advance 

Enrico

TBhatia

Hello Enrico, thank you for your message. A member of our technical team is looking into your questions and we will respond shortly.  

JHayes

Hi Enrico,

I will reach out directly for more information on your test setup.

Thanks,

Jonathan

TBhatia

Hi, I hope that this answered your question. I will close this discussion for now but if you have a follow up question, please "Start a New Discussion" and we would be glad to support you further.