Since this seems like a homework assignment, if you show us the model you've created to try to solve the problem and ask a specific question about where you're having difficulty, we may be able to provide some guidance.
If you aren't sure where to start because you're not familiar with how to create a Simulink Model, I suggest you start with Simulink Onramp self-paced interactive tutorial (https://www.mathworks.com/learn/tutorials/simulink-onramp.html) to quickly learn the essentials of Simulink.
This documentation page (https://www.mathworks.com/help/physmod/sps/power-electronics.html), featuring examples of converter models and VSCs may also help.
If you aren't sure where to start because you're not familiar with the principles you'll need to solve the problem, I recommend asking your professor and/or teaching assistant for help.
