| dc.description.abstract | This thesis presents five different nonlinear control techniques for voltage regulation of a
DC-DC buck converter operating in continuous conduction mode. A state space
averaging model is derived from a non-ideal buck converter circuit with the consideration
of resistances of each component.
Based on this model, different nonlinear control techniques have been developed to
control the DC-DC buck converter. These include backstepping control, sliding mode
control, backstepping sliding mode control, adaptive backstepping control, and adaptive
backstepping sliding mode control. All these proposed controllers have been evaluated by
computer simulation and implemented on the DC-DC buck converter which is built for
this thesis.
Simulation and experimental results show that all the proposed controllers are able to
stabilize the closed loop system and to achieve satisfactory voltage regulation
performances under source voltage variations and load changes. | |
