Motor Control Examples Showing How to Tune Gains of Field-Oriented Controllers
If you have not seen this yet, in Release 2018b we added several examples to Simulink Control Design that show how to use this product to tune the gains of field-oriented controllers.
The first two examples make use of Closed-Loop PID Autotuner block . We show how to use this block to tune multiple loops in the motor control system, one loop at a time.
One of the examples shows tuning the controller gains for a PMSM:
Tune Field-Oriented Controllers Using Closed-Loop PID Autotuner Block
The other example shows how to tune four loops for an asynchronous machine (inductance motor):
Tune Field-Oriented Controllers for an Asynchronous Machine Using Closed-Loop PID Autotuner Block
This approach works well when you have initial gains that provide stable response, and you want to fine tune the controller to improve performance.
What do you do when you start with a new design and need to design your controller from scratch? That is what the third example is showing. Here we design all 3 loops (id, iq, speed) for a PMSM by running an AC sweep to compute a frequency response, then identifying a state-space model using System Identification Toolbox, and finally tuning all 3 loops simultaneously to provide desired performance.
Check it out here:
Tune Field-Oriented Controllers Using SYSTUNE
What do you think about these examples?
Share your opinion.
Arkadiy
1 Comment
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Thank you very much, I'd like to learn the third example to tune current/speed loop from scratch. could give me some reference book or article about how to design PI current /speed regulator and how to caculate the current loop bandwith of PMSM FOC controller ? any help would be appreciated.
Jinyu
