IEEE 9 bus simulink model with one line as HVDC

i have modified the IEEE 9 bus power system simulink model by changing one of the line as HVDC.The model is running,but i am facing problem in LOAD flows and firing pulses generation for the HVDC converters.The model is used for Transient stability analysis.

The model was created in MATLAB 2017.I have attached the .mdl file.

please give me the solution for it.

download .mdl file here

Answer 1

[Graham Dudgeon]

Hi Mutyala. The load flow algorithm won't recognize power electronic switches - the HVDC link is veiwed as an open-circuit. I recommend implementing control systems on your generators and allowing the system to reach a stable operating point through simulation. Once that is done, the switching behaviour can then be evaluated.

[MUTYALA NAGABABU]

First of all thanks for your great support.could you please check the file and make the necessary corrections.Because i am not getting stable operation point (or)please explain how to get the stable operation point through simulation. If u have any Ac/dc load flow file related to stability concern pls send it to the below email id.pls give reply here. email id: [e-mail]