How to adapt a DAB-based converter model for RT Box 2 using the Nanostep solver?

PLECS
1

Hi,

I am working on a HIL implementation using an RT Box 2, and I would like to adapt a Dual Active Bridge (DAB)-based converter model to run with the Nanostep solver.

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The topology I want to implement is shown in the attached image. It is a DAB-derived isolated DC-DC converter in which the primary side is similar to a conventional full-bridge stage, while the secondary side includes additional switching cells, clamping capacitors, inductors, and an output DC bus.

My goal is to use this converter in a real-time HIL setup for my research, where the control algorithm will be implemented externally, and the power stage will run in PLECS RT Box 2.

I would like guidance on modifying the DAB block to correctly include the additional secondary-side switches, clamping capacitors, and inductors.

Any recommendations, examples, or modeling guidelines would be very helpful.

Thank you in advance for your support.

Best regards,
Henry

2

Hi Henry,

The PLECS Nanostep modules are not configurable, so it is unfortunately not feasible to simulate your circuit using the Nanostep solver.

Depending on your switching frequency and overall circuit complexity, you may instead be able to use the Power Modules together with the Flex Array solver to model your converter. With PLECS 5.0 and TSP 4.0 and newer, the Flex Array solver has been optimized to solve electrical circuits at rates between approximately 50 ns and 200 ns, depending on circuit complexity.

Hope this helps!