Development of Conventional Control of Parallel Loaded Resonant Converter -Simulation and Experimental Evaluation

This paper presents simulation and implementation of PI controller for a high frequency soft-switched DC-DC converter for distributed energy generation systems like solar systems, vertical axis aero-generator and fuel-cell power systems. This converter is widely used to achieve reduction in size of the passive components of the converter such as inductors, capacitors and transformers. Control algorithm is developed in this work to ensure tracking of the reference voltage and rejection of system disturbances by successive measurement of the converter output voltage at certain time instants within a conduction period. The main objectives are (i) development of conventional control of parallel loaded resonant converter using MATLAB (version 7.01) software (ii) TMS320F2407 DSP based hardware implementation of above controller and (iii) evaluation of the controller's performance. The controller developed provides fast response and good performance under supply and load disturbances. The results validate the effectiveness of proposed scheme.