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ACI_FE MACRO / Flux estimator for ACI Motors

nicolasapicco
Prodigy 150 points
Other Parts Discussed in Thread: TMS320F28335

Hi Everybody!!!

I am working with the kit TMS320F28335. I was following the Sensorless FOC of ACI_2833x Guide.

Everything was fine till the build level 5, where the ACI_FE macro didn't respond as expected. In open loop not only the flux's waveforms are fine but also the thetaflux.

But when I close the loop (level 5B) the macro starts miscalculating and the motor stops spinning. 

Did somebody work with it?? Any considerations for the close loop?. I tried with differents values for Kp and Ki but nothing changed.

I am lost really. Any ideas??

Thanks!!!