This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hello,
We are trying to implement the minimum implementation of InstaSPIN-FOC i.e. using only the FAST Estimator with our own hardware on the TMS320F280025C. We wanted to know what considerations need to be made when selecting the frequency at which the Estimator block needs to be called. Is there any relation with the PWM Carrier frequency? Thanks in advance.
Aditya,
The subject matter expert is out of office today. He will get back to you on Monday.
Regards, Santosh
Is there any relation with the PWM Carrier frequency?
You may select the right PWM frequency according to the motor and the power board you used. The control frequency could be 3~25kHz for FAST estimator on F28002x, the PWM frequency can be the same as the control frequency in most cases.
You may refer to the universal motor control lab is available in the current MCSDK, which can support a set of hardware kits and control algorithms for BLDC/PMSM drive. The kits include LAUNCHXL-F280025C, LAUNCHXL-F280039C, LAUNCHXL-F2800137 with BOOSTXL-DRV8323RS, BOOSTXL-DRV8323RH, DRV8353Rx-EVM, BOOSTXL-3PHGANINV, DRV8316REVM, or DRV8329AEVM inverter board for low voltage motor (max: 100Vdc) . TMDSCNCD280025C, TMDSCNCD2800137 , or TMDSCNCD280039C with TMDSHVMTRINSPIN inverter board and TMDSADAP180TO100 for high voltage motor (max 350Vdc). And The control algorithms include sensorless InstaSPIN-FOC with FAST, Sensorless-FOC with eSMO, Sensored-FOC with incremental encoder, Sensored-FOC with hall sensor.
C2000WARE-MOTORCONTROL-SDK: https://www.ti.com/tool/C2000WARE-MOTORCONTROL-SDK
Universal Project and Lab User’s Guide: https://www.ti.com/lit/spruj26
Example lab project at the folder: C:\ti\c2000\C2000Ware_MotorControl_SDK_<version>\solutions\universal_motorcontrol_lab\f28002x