I am building a ring connected DC microgrid system. Facing issues when trying to connect the subsystems through the DC bus component

I've made the subsystems of AC LOad, DC load, Battery management system and PV charger with MPPT. Now I am trying to connect all these subsystems in RIng configuration but when I am using DC bus to make connections, the connections aren't being made? They aren't getting connected as if they are incompatible eventhough the output and input of each one of them is DC.

And can anyone suggest what this component is named in simulink? The component is named as F1,F2 and A2 in the image attached

Answer 1

[Satyam]

Hi @M.Sai,

It sounds like you are trying to build a ring-connected DC microgrid in Simulink and facing issues with connecting subsystems via the DC Bus. You can try out these troubleshooting steps to fix your issue:

• In Simulink Specialized Power Systems, components must share the same electrical domain. If your subsystems use different domains (e.g., Simscape Electrical vs. Specialized Power Systems), the DC Bus block will not connect.
• Check that all ports are physical electrical ports and belong to the same library (e.g., Simscape Electrical > Specialized Power Systems).
• If you are using Simscape Electrical, you need to use Electrical Reference and connect through nodes, not the DC Bus block from Specialized Power Systems.

I hope it helps!