TMS320F28379D: ePWM setting for SVPWM

Siyuan Zhan

Part Number: TMS320F28379D

Im working on an implementation of a FOC voltage source rectifier. Now im struggling with the connection between Space Vector Generator and ePWM.

The frequency of my PWM is 20kHz, and the sawtooth amplitude is 2000. Counting mode is up-down. How can i set on ePWM module to replace the ePWM module with the sawtooth module?

How to set Timer Period; CMPA?

Thank you very much!

Best Regards

SIyuan

over 4 years ago

0 Siyuan Zhan over 4 years ago

Prodigy 60 points

0 Nima Eskandari over 4 years ago in reply to Siyuan Zhan

TI__Guru 52040 points

None of your images are going through. Make sure to ATTACH them using the attach feature. Meanwhile I will notify our MCSDK experts.

Nima

0 John_K over 4 years ago

TI__Expert 4200 points

I can't figure out what you want to do only without the images.

Please update your thread including the appropriate images.

Best,

John

0 Siyuan Zhan over 4 years ago in reply to Nima Eskandari

Prodigy 60 points

SVPWM ePWM.docx

I dont know why i cannot attach pics on this page, but i copied them in this word file. i want to replace the sawtooth generator, but im struggling with the option of this ePWM block.

the PWM frequency is 20kHz, and the amplitude of the sawtooth generator is 2000.

Firstly should i scale the reference time from Space vector generator Ta Tb and Tc? and then how can i set the block?

Thank you very much!

0 John_K over 4 years ago in reply to Siyuan Zhan

TI__Expert 4200 points

Siyuan,

Are you trying to implement SVPWM on Simulink or in the actual C2000?

Here's some helpful link for your reference.

e2e.ti.com/.../880817

If you still have the question, please let us know and we will forward this to Matlab folks.

Best,

John

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28379D: ePWM setting for SVPWM