Modelling of Rectifier using Differential Equations in Simulink

Hello,

I am working on Modelling of three phase rectifier in Simulink and I succeeded in Modelling the rectifier using the SimPowerSystems toolbox. Now, I am trying to model the rectifier using Differential Equations (Obtained by applying KVL and KCL to the three phase rectifier circuit) and I am facing difficulty in designing the model. I would like to know if someone has already worked on this kind of models and Can you share the problems you faced while designing or any suggestions on such kind of Models.

Thank you.