We can simulate the number of models using Matlab Simulink, but can we take out the PWM signals generated by the Simulink model to fed to real circuits for three phase inverters. One method is using Dspace ACE board or using DSP, but the cost is a consideration. Can we use Arduino microcontroller board for the same or do we have some other scheme? We have hardware support package in simulink, but how can we connect them directly, so that the results generated by simulation can be used for three phase inverters.
Why arduino? I think you can try Texas instrument's Launchpad F28027 or similar low cost board. These are much better than arduino UNO/Mega in terms of the ADC (12 bit in TI F28027 but only 10-bit in Arduino), higher clock speed.
The PWM signals generated are not of good quality in case of arduino. So, better to use DSP or the above mentioned launchpad kits of TI.
Now you have the controller part on your model and using the PWM output block from hardware support package, you get the switching PWM at the PWM pins of Arduino/DSP. The code for the controller part can be dumped using the simulink.
The attached file shows automatic code generation using simulink for a task on arduino uno.
Why arduino? I think you can try Texas instrument's Launchpad F28027 or similar low cost board. These are much better than arduino UNO/Mega in terms of the ADC (12 bit in TI F28027 but only 10-bit in Arduino), higher clock speed.
The PWM signals generated are not of good quality in case of arduino. So, better to use DSP or the above mentioned launchpad kits of TI.
Now you have the controller part on your model and using the PWM output block from hardware support package, you get the switching PWM at the PWM pins of Arduino/DSP. The code for the controller part can be dumped using the simulink.
The attached file shows automatic code generation using simulink for a task on arduino uno.
Thank you very much for the answer...I have gone through the documents for Launchpad F28027, it is showing that it has only 8 PWM channel and we have to go through the CCS and IDE software. I am looking to generate the signals directly form the simulink and implement on the PCB ...
Regards
CCS is used just as a medium to dump the code on DSP. The code is generated by Matlab/simulink and when you click on run on target hardware the code corresponding to your controller part of model will dump on your DSP. In the pdf file attached in previous answer, I did it for arduino Uno.
Arduino is very cost effective and it can be used integrated to Matlab/Simulink environment.You can see the following link for the integeration of both
https://www.youtube.com/watch?v=_OLctOFjjYQ
i will suggest use mega board instead of uno with a little cost difference you will get more i/o pins.
Regards,
Akbar
Dear Akbar,
Thank you very for the answer, I will go with the Mega board. But at the moment I am facing problem in downloading the hardware support package in matlab. I am working on it.
Regards
Dear Kartik and Akbar,
Can you suggest, how can we use basic carries based PWM scheme for single phase voltage source inverter using Matlab simulation on Ardiuno mega board.
Regards
For generation of PWM we compare our reference signal to the high frequency carrier signal. So simply if you want to generate the SPWM for a single phase VSI, just compare the sine wave with the triangular carrier signal and the output from relational operator is then fed to the PWM block of Arduino (Uno, Mega any board because library is same for all).
I have attached two figures. Here I generated the SPWM for a single switch of inverter, you can add another by just shifting the sine wave by 180 degree and comparing it with another carrier. The digital output will be different for each output signal.
Thank you for the answer... can you please provide your mail id...or mail me at [email protected]
regards
- Badges
- Science topic