Please provide me some basic literature on state space modeling of modular multilevel converter operating in resonant mode, selection of state variables for modeling.
Modeling and simulation of generalized state space averaging for series resonant converter
and go for the references as well. there are many titles have studied the state space for RSC.
just u need to consider about the tank sinusoidal waveforms. and the load variation. which make the resonant converter a bit complicated but they have the ability to be regulated.