Answer Question
How can I eliminate initial transient for a 640 kV two terminal VSC based HVDC system?
I have modeled two terminal VSC-HVDC system with a DC voltage +/- 320 kV and 1000 MVA rating. During the start of simulation a huge amount of reactive power is flowing through the network and converter goes in saturated mode. After 400 ms the system comes back to normal and controllers track the reference. why does this happen? Is it because of inrush currents?