CCS/TMS320F28377S: Regarding vector control of induction machine

Milarepa

Tool/software: Code Composer Studio

I am implementing vector control of scim. The output of speed PI controller, which is isq_ref is oscillating. The current controllers are working fine. Bandwidths are 10 Hz and 100 Hz for speed and current loops.

The commanded speed is getting tracked but the currents are distorted. Any help?

over 8 years ago

0 Yanming Luo over 8 years ago

TI__Guru** 116920 points

Is the control sensored or sensorless FOC? Make sure that the motor parameters is correct if it's sensorless FOC, to check the feedback speed is stably without loading. Check the sensor interface and configuration is right, and check the feedback speed to speed PI controller also.
Actually, the Iq reference will be a little oscillating in real case, especially the loading or friction of motor is not constant.

0 Yanming Luo over 8 years ago in reply to Yanming Luo

TI__Guru** 116920 points

Any update on this question? Let's know if have any further questions.

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CCS/TMS320F28377S: Regarding vector control of induction machine