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Hi,
The IGBT Thermal model is created by you, or you have selected the existing one?
Thank you,
Vishwanatha Siddhartha
Yes the model is created by me. Thermal IGBT Model.
1. Is the IGBT model is with anti-parallel diode or without anti-parallel diode?
2. Whatever may be the model (with/without diode) if it has device xml in plecs, you can convert it to PSIM model by using following articles:
(i) https://community.altair.com/community/en/converter-for-thermal-device-xml-files-from-plecs-to- psim?id=kb_article_view&sysparm_article=KB0124054
(ii) https://community.altair.com/community/en/how-to-import-thermal-device-xml-files-to-psim? id=kb_article_view&sysparm_article=KB0124132
3. There is no plecs model available online and the IGBT model is without anti-paralleled diode, then this problem may exist. We already identified this bug and dev team working on it. Meanwhile, there are ways to develop proper PSIM model
(i) Just make anti-parallel diode as open always. To do this use the Vf vs If characteristics of diode in device database editor.
1. Is the IGBT model is with anti-parallel diode or without anti-parallel diode? 2. Whatever may be the model (with/without diode) if it has device xml in plecs, you can convert it to PSIM model by using following articles: (i) https://community.altair.com/community/en/converter-for-thermal-device-xml-files-from-plecs-to- psim?id=kb_article_view&sysparm_article=KB0124054 (ii) https://community.altair.com/community/en/how-to-import-thermal-device-xml-files-to-psim? id=kb_article_view&sysparm_article=KB0124132 3. There is no plecs model available online and the IGBT model is without anti-paralleled diode, then this problem may exist. We already identified this bug and dev team working on it. Meanwhile, there are ways to develop proper PSIM model (i) Just make anti-parallel diode as open always. To do this use the Vf vs If characteristics of diode in device database editor. Thank you, Vishwanatha Siddhartha
Hello Viswanath,
Thank you for your response.
I would like to know what you mean by the thermal model having with/without Antiparallel diode. I used the model marked as in green below. Is it the model without antiparallel diode?

Hello Viswanath, Thank you for your response. I would like to know what you mean by the thermal model having with/without Antiparallel diode. I used the model marked as in green below. Is it the model without antiparallel diode? 
You have to select New IGBT. It's correct option you have chosen.
My question is that the datasheet of the device has the information about anti-parallel diode?
With or without (This information is from datasheet of the device) anti-parallel diode, you have to select "New IGBT". Further process is as explained in previous reply.
Thank you
Hi, You have to select New IGBT. It's correct option you have chosen. My question is that the datasheet of the device has the information about anti-parallel diode? With or without (This information is from datasheet of the device) anti-parallel diode, you have to select "New IGBT". Further process is as explained in previous reply. Thank you Vishwanatha Siddhartha
Hello,
The IGBT we selected have antiparallel diode. Vf-If Chara- is available in datasheet of IGBT.
All points are entered as per datasheet as shown below.
But while verifying the switching losses I am getting an error message as shown below. Have any idea on this?
Hello, The IGBT we selected have antiparallel diode. Vf-If Chara- is available in datasheet of IGBT. All points are entered as per datasheet as shown below. But while verifying the switching losses I am getting an error message as shown below. Have any idea on this?
Can you check the .xml file of created IGBT?
I suspect that the Eon vs Tj, Eoff vs Tj curves defined at Ic=0A.
if that is the scenario, please follow the steps
1. open device xml file in "Edit in notepad".
2. Search for Eon vs Tj, Eoff vs Tj section, change Ic=0 to datasheet mentioned value.
3. save and close.
4. restart psim and check once.
