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How to change my closed loop system into an open loop one

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Hilmi Kemal Demiray
Hilmi Kemal Demiray am 19 Feb. 2023
Beantwortet: Gokul Nath S J am 22 Mai 2023
I'm working on a small project where I'm trying to control a Buck Converter in different ways. The Buck Converter is the BOOSTXL-BUCKCONV from TI, which I am using with the LAUNCHXL-F280049C.
the following example already describes how one can use the models made by TI to use the Hardware with a closed loop controller.
now I would like to change the controller to a simple open loop control (no P or I gain) where I can use the Host model (also shown in the example) to change the Duty cycle and frequenzy in the ePWM block. However I am not sure how to implement these changes into the models.
Any help would be greatly appreciated,Thanks!

Antworten (1)

Gokul Nath S J
Gokul Nath S J am 22 Mai 2023
Hi Himli,
It seems that you would like to change the closed loop system to the open loop one. Further you would like to control the Duty cycle and frequency. One suggestion is to use a masked blocks. By enabling the masked blocks you can directly paramterise the block and control the duty cycle and frequency of operation as you would like to do it for any internal blocks. First you might need to create a subsystem and then need to mask the model.
For more information regarding the masked subsystem, kindly go to the following links.
with regards,
Gokul Nath S J


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