DRV8301-69M-KIT: InstaSPIN FOC 11e motor control with hall not working correctly

Georgi Gospodinov

Part Number: DRV8301-69M-KIT

I am having exactly the same problem as the other user in Lab11e.

The motor runs forward only if I input negative value in gMotorVars.SpeedRef_krpm and only runs at maximum RPM without caring for the value I have put in gMotorVars.SpeedRef_krpm.

The other user solved his problem saying "So I did NOT all Hall Sensor Values and now it is working.", but I cannot understand what exactly does that mean. Could someone provide additional assistance?

over 1 year ago

0 Yanming Luo over 1 year ago

TI__Guru** 109780 points

You may follow the below steps for any further questions about the lab11e.

1. Please ensure the sequence of the hall input signal is corresponding to the set number in gHall_PwmIndex[].

2. You may increase PWM frequency if possible because the Hall signal is detected in PWM ISR. The delay time will have an impact on the high-speed running if the PWM frequency is too low.

3. Tune gHall2Fast_Spd_Coef, gHall2Fast_Iq_coef, gHall_speed_FastToBldc_low_pu and gHall_speed_BldcToFast_high_pu.

4. Tune the gains of the PI regulator in HALLBLDC_Ctrl_Run().

You might also take a look at the following links about lab11e as a reference

https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/883444/3294852

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/670979

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/883444

https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/822522/3043645