C2000WARE-MOTORCONTROL-SDK: how to adjust PID parameters on CCS

Nicolas Grangier

Part Number: C2000WARE-MOTORCONTROL-SDK

hello,

In order to get the lowest noise on BLDC motors, I tried to manipulate is07's expressions. I already note that when we increase the kp_id and kp_iq, we could reach higher speed with a little noise. But I'm sure that others parameters are able to improve precision, stability and speed of execution. I want apply the ziegler-Nichols method but I don't know how.I already read the is07 explanation, but it doesn't help me. Could you please help me ?

over 4 years ago

0 Yanming Luo over 4 years ago

TI__Guru** 116090 points

In general, the Kp and Ki of the current and speed regulators are calculated per the parameters of the motor. There is no unique formula for all of the different systems, you have to tune these parameters according to the requirements of your system.

You might take a look at chapter 11 (Tuning Regulators) of InstaSPIN-FOC and InstaSPIN-MOTION User's Guide (Rev. H) (http://www.ti.com/lit/ug/spruhj1h/spruhj1h.pdf) that have a detailed description of these. Or you can have a look at some textbooks about the PID Control System Design for Electrical Drives and Power Converters.

The gains of the speed regulator should be a key factor of the speed stability and response.

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C2000WARE-MOTORCONTROL-SDK: how to adjust PID parameters on CCS