Hi Pablo,
As you can check in the Typhoon HIL Control Center release notes, from the THCC version 2024.3, the individual IGBT component is expanded with the LC switch model. This option is now set as default, unlike in the previous versions where ideal switch model was the only one available. To match the behavior of previous versions, you should check "Use ideal switch model" option in Advanced tab.
However, as already indicated in other responses, using individual IGBT components for real-time simulation is suboptimal in terms of simulation accuracy and FPGA resource utilization. Specifically, if you use individual ideal IGBT components, the model will have a converter weight of 8, which exceeds the capacity of a single FPGA core.
To improve performance and efficiency, I suggest considering one of the following approaches:
1. Dedicated Dual Active Bridge component.
This component is especially recommended for applications with relatively high switching frequency (≥100 kHz). The limitation is that it is supported only in a few standard firmware configurations (e.g., for HIL404, it is C5). You can refer to the relevant example model in the THCC installation folder (..examples\models\general power electronics\dab dc-dc converter solver).
2. 4xHalf Bridge components with Switch-level GDS oversampling option enabled
This option provides lower fidelity at high switching frequency, but is supported on more firmware configurations (e.g., for HIL404, C3 and C5). The corresponding example model can be found here (..examples\models\general power electronics\dab standard).
3. 2xSingle Phase Inverter components
Out of previous 2 option this one will give you the worse results, especially in combinations with high-switching frequency, non-zero dead time or small phase shift. The only advantage of this modeling approach is that it can be applied on any firmware configuration, so it may be suitable if you can't change firmware configuration for some reason.
Best regards,
Dusan
