Nonlinear Control Of Power Converters Based On Energy Shaping

DC/DC power converter is one of typical nonlinear systems, it's control problem hasattracted many researchers. In this paper, a novel control method Port-ControlledHamiltonian (PCH) system control has been used to control the Boost and Cuk converter,and the main method is the interconnection and damping assignment passivity-basedcontrol method in the theory of Hamiltonian systems. In Matlab/Simulink, the models ofHamiltonian control systems are established. The simulation results show that the controlsystems are correct.First of all, we introduced some basic information of dissipation system and a kindof passivity system—Hamiltonian system. We research these systems using the method ofenergy shaping from the stabilization. We have introduced the stability theory of thepassivity system and the stability theory of the dissipation system. We have discussed thefeedback stabilization theory of the Port-Controlled Hamiltonian system with dissipation.Secondly, we established the model of Boost and Cuk converter in the theory of theport-controlled Hamiltonian system. Meanwhile we have used the interconnection anddamping assignment passivity-based control method to work out the controller of thepower converter systems. We analyzed the characteristics of the PCH model of DC/DCconverter. These included: energy balance, dissipation, passivity etc.Thirdly, we used the TMSLF2407 DSP circuit to realize the controller of Boostconverter.The conclusion of the research work in this dissertation is made and the futureresearch direction is given out also.