I making grid connected average model of SST based LVDC microgrid. The model of LVDC is in PLECS and SST is already made in simulink. I wanted to combine them without a need to transfer one model entirely to another simulation platform it will be very tedious. I tried using PLECS circuit block in simulink to connect LVDC with the DC link output of the SST but it was giving error ‘problem in physical connection with PLECS circuit. Current measurement can’t be connected to foreign block’. At the output of SST there is current measurement block whose output is used for controlling the SST and LVDC, it is connected to the PLECS circuit block. If anyone has some idea, it would be great.
You cannot create physical connections between PLECS and other physical modeling tools such as SimScape. The only way to interface the two physical systems would be use controlled voltage/current sources based upon electrical measurements (signals) from the other modeling domain.
For example, see the following figure, except one of the two systems could be modeled in SimScape.
Thank you so much for a quick response. I tried this, the bus voltage is correct but the bus current isn’t working.
I suspect the Delay block has a default time step of 1 second. For simulations on your computer you can omit the Delay block.