Calculation of IGBT and MOSFET Losses in PSIM

Ali_22612
Ali_22612 New Altair Community Member
edited March 6 in Community Q&A

Hello Everyone,

 

I have just started using PSIM and my goal for using PSIM is to calculate/simulate the losses of three phase inverter. I was studying a tutorial from PSIM Help with title"Altair PSIM Tutorial / IGBT and MOSFET Loss Calculation in the Thermal Module". Unfortunately they havent given shared the simulation file for this tutorial so its difficult for me to understand. I am strucked here that how they have parametarized this simulation including the value of load impedence, thermal impedence between case and module. Can anyone please assist me here?

image

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Answers

  • NikosDimitrakopoulos
    NikosDimitrakopoulos
    Altair Employee
    edited March 6

    Hi Ali,

    This exact schematic is a prebuilt example in PSIM. You can find it by navigating to Help >> Index and then by typing "semix" in the search bar:

    image

    The thermal equivalent circuit corresponds thermal values to electrical values. That being said, the temperature corresponds to voltage, thermal losses correspond to current and thermal resistance to electrical resistance.

    Feel free to follow our thermal module tutorials for more details:

    1. Introduction to the Thermal Module
    2. Thermal Module Improvements | PSIM v12

    Every block in PSIM has parameters that you can change or define as variable in a parameter file. You can find more information on parameter files in this tutorial:

    https://www.youtube.com/watch?v=0E2fTAcC35U

    Hope this helps!

     

    BR,

    Nikos

  • Ali_22612
    Ali_22612 New Altair Community Member
    edited March 6
    Nikos Dimitrakopoulos said:

    Hi Ali,

    This exact schematic is a prebuilt example in PSIM. You can find it by navigating to Help >> Index and then by typing "semix" in the search bar:

    image

    The thermal equivalent circuit corresponds thermal values to electrical values. That being said, the temperature corresponds to voltage, thermal losses correspond to current and thermal resistance to electrical resistance.

    Feel free to follow our thermal module tutorials for more details:

    1. Introduction to the Thermal Module
    2. Thermal Module Improvements | PSIM v12

    Every block in PSIM has parameters that you can change or define as variable in a parameter file. You can find more information on parameter files in this tutorial:

    https://www.youtube.com/watch?v=0E2fTAcC35U

    Hope this helps!

     

    BR,

    Nikos

    Hello Nikos,

     

    Thank you for sharing insight about this model and I have found this model however what I would also really like to know about the calaculation of load impedence and based on which equations they calaculated this value of L=3.38mH and R=1.7 ohm using the input parameters like Vdc, VACL-L, power factor and fundamental frequencey.

    Could you please also clarify that

  • NikosDimitrakopoulos
    NikosDimitrakopoulos
    Altair Employee
    edited March 6
    Ali_22612 said:

    Hello Nikos,

     

    Thank you for sharing insight about this model and I have found this model however what I would also really like to know about the calaculation of load impedence and based on which equations they calaculated this value of L=3.38mH and R=1.7 ohm using the input parameters like Vdc, VACL-L, power factor and fundamental frequencey.

    Could you please also clarify that

    Hi Ali,

    I don't think the output load was calculated based on a specific calculation or equation. Those maybe typical RL values representing a motor for example.

    You can use your own values based on your application.

    BR,

    Nikos

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