Hi, I have a problem with the control of a three-phase pfc rectifier controlled by MOSFETs (half bridge for each abc branch). I have implemented the physical part, which is the part I show in the first image (I also upload the model in case you want to see the values I have used). When I simulate with the SVPWM control it is not able to control the current and it quickly gets very high values in the three-phase part. The three-phase voltage is obviously OK, but the DC bus voltage is wrong. At the end I attach a couple of pictures with the results.
The problem is that the control does not work properly. Control in the outer loop is DC voltage (800 V is the reference). As you can see iin the result, voltage go to zero and do not follow the reference.
I don’t understand what is wrong in the model because I think the controllers are well implemented. Can someone please help me?
Plant of the model:

I also attach an image of how the control is implemented:

Results:

Thanks.Hi, I have a problem with the control of a three-phase pfc rectifier controlled by MOSFETs (half bridge for each abc branch). I have implemented the physical part, which is the part I show in the first image (I also upload the model in case you want to see the values I have used). When I simulate with the SVPWM control it is not able to control the current and it quickly gets very high values in the three-phase part. The three-phase voltage is obviously OK, but the DC bus voltage is wrong. At the end I attach a couple of pictures with the results.
The problem is that the control does not work properly. Control in the outer loop is DC voltage (800 V is the reference). As you can see iin the result, voltage go to zero and do not follow the reference.
I don’t understand what is wrong in the model because I think the controllers are well implemented. Can someone please help me?
Plant of the model:

I also attach an image of how the control is implemented:

Results:

Thanks. Hi, I have a problem with the control of a three-phase pfc rectifier controlled by MOSFETs (half bridge for each abc branch). I have implemented the physical part, which is the part I show in the first image (I also upload the model in case you want to see the values I have used). When I simulate with the SVPWM control it is not able to control the current and it quickly gets very high values in the three-phase part. The three-phase voltage is obviously OK, but the DC bus voltage is wrong. At the end I attach a couple of pictures with the results.
The problem is that the control does not work properly. Control in the outer loop is DC voltage (800 V is the reference). As you can see iin the result, voltage go to zero and do not follow the reference.
I don’t understand what is wrong in the model because I think the controllers are well implemented. Can someone please help me?
Plant of the model:

I also attach an image of how the control is implemented:

Results:

Thanks. pfc, active control rectifier, three phase rectifier, active front end, six switches rectifier MATLAB Answers — New Questions

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