The steady-state and dynamic characteristics of fourth order current-source resonant power converters
This thesis presents the detailed results for the Γ-CL//-LC current-source resonant inverter circuit and CLLC current-source resonant inverter circuit. These include analytical results on its steady-state characteristics (including input impedance, resonant frequency, input-output transfer function, individual component voltage and current stresses, and efficiency). In addition, samples of analytically derived design charts, simulation results and experimental results are shown. This thesis then presents results regarding the dynamic characteristics of the Γ-CL//-LC current-source resonant DC/DC converter and CLLC current-source DC/DC resonant converter. An approximation technique is employed based on the extended describing function concept, to derive a small-signal model of these resonant DC/DC converters. By this method, one can obtain the frequency responses of the output voltage to frequency control, to duty-ratio control, and to source and load perturbations, useful for dynamic response studies and for control design of these converters. Analytical results derived via the proposed procedure for design examples are presented along with corresponding simulation and test results. (Abstract shortened by UMI.)
Kanchubotla, Saravan Ayyappa, "The steady-state and dynamic characteristics of fourth order current-source resonant power converters" (2003). ETD Collection for University of Texas, El Paso. AAIEP10362.