Core Coupling problem

Question

I have two single-phase inverters to form a four-leg inverter, but when I use core coupling to add a boost converter to the DC bus, the system behaves as if it were open-circuited. The inverter's current is zero, and the bus voltage explodes. Without the core coupling, the system works, but only with HIL 604. I'd like to use it with 404. Does anyone have any suggestions?

Answer 1

Hello Guilherme,

Did you try adding snubbers to the core coupling component to improve stability. I also recommend looking at this guide to get a better idea of how to place the core couling component to ensure a well behaved model. 

Hope this helps.

Best regards.