Choosing the right IGBTs and diodes for your non-isolated DC-DC converter simulation within the ABB SEMIS tool requires careful consideration of several factors. Here's a step-by-step guide to help you through the process:
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IGBT Component Selection
- Define Heat Sink Thermal Resistance: Begin by specifying the thermal resistance of your cooling system, crucial for the IGBT's thermal management. This value is found in the datasheet for your selected IGBT module. You will enter this value within the electrical configuration schematic in SEMIS.
- Filter by IGBT Module Type: Use the available filtering options in ABB SEMIS to narrow down your choices based on the housing type of the IGBT.
- Specify IGBT Voltage Class: Select the appropriate voltage class for the IGBT based on your converter's voltage requirements.
- Choose Module Configuration: Specify the topology of the IGBT module for filtering, as this impacts the available options.
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Matching IGBTs
- Review Matching Options: Once you've set your IGBT properties, the tool will present matching IGBT options. Click on the product code to access the corresponding datasheet from the ABB website for detailed specifications.
- Select IGBTs for Simulation: Choose the IGBTs that best fit your needs. You can select up to four components simultaneously for simulation. SEMIS will alert you if any selected component exceeds its safe operating area (SOA) limits; if this happens, adjust your parameters or choose different components.
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Matching Diodes
- Diode Selection: Based on your module configuration, you can choose between Chopper diodes or FRDs (Fast Recovery Diodes). Select the appropriate Diode Type.
- Choose Matching Diodes: Select diodes that match the voltage and current ratings of your design.
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Simulation Execution
- Select Components: Activate the checkbox next to the components you've chosen.
- Initiate Simulation: Click "Simulate" to start the thermal analysis simulation.
- Review Results: SEMIS will show the simulation progress. You can save and compare the results of different simulations to optimize your design.
By carefully following these steps and considering your specific converter requirements, you can effectively use the ABB SEMIS tool to simulate and analyze the performance of your non-isolated DC-DC converter, optimizing your design for thermal performance.
