TMS320F2800137: InstaSPIN-FOC FAST

w.y

Part Number: TMS320F2800137
Other Parts Discussed in Thread: C2000WARE

Tool/software:

The Ld and Lq of IPMSM (Inner-mounted Permanent Magnet Synchronous Motor) are different, but the values of Ld and Lq are the same in the motor parameters learned by C2000Ware MotorControl SDK. I have the following questions：
1. Can the FAST observer in C2000Ware MotorControl SDK be used to control IPMSM?

2. Can the learned motor parameters be directly filled into user_mtr1.h? Will this cause abnormal motor control?

3. Why is the three-phase current waveform of my IPMSM worse when controlled by MTPA than when not controlled by MTPA when using FAST observer?

4.When using the FAST observer, how do I set the motor parameters to correctly control the IPMSM?

over 1 year ago

0 Kevin Allen18 over 1 year ago

TI__Mastermind 45606 points

Hi,

The Motor ID routine cannot detect different Ld/Lq values. See below:

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/372263/instaspin-autotune-ld-lq-measurement

w.y said:
2. Can the learned motor parameters be directly filled into user_mtr1.h? Will this cause abnormal motor control?

Yes, you are intended to do that or you can fill in with parameters from the motor data sheet.

w.y said:
3. Why is the three-phase current waveform of my IPMSM worse when controlled by MTPA than when not controlled by MTPA when using FAST observer?

You can refer to documents below for using / tuning MTPA:

https://www.ti.com/lit/spracf3
https://www.ti.com/lit/spruj26
- 2.5.1 Field Weakening (FW) and Maximum Torque Per Ampere (MTPA) Contro

w.y said:
4.When using the FAST observer, how do I set the motor parameters to correctly control the IPMSM?

Please refer to https://www.ti.com/lit/spruhj1

Best,

Kevin

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F2800137: InstaSPIN-FOC FAST