Application of finite state machines in hybrid simulation of dc-dc converters

Much attention is currently being directed at nonlinear effects such as bifurcations, sub-harmonics and chaos in conventional and hybrid power electronic converters (PECs). Traditionally, PECs have been difficult to model and simulate because of the discontinuous nature of their underlying differential equations. This work suggests a modeling and simulation framework for a PECs that employs a Matlab/Simulink based finite state machine (FSM) in the context of hybrid systems theory. The literature contains mostly abstractions on hybrid simulation and few suggestions of practice. The approach is illustrated with the boost topology. The simulations are subsequently compared and contrasted with PSpice results.