Steady state and dynamic performance assessment of high power bi-directional dc-dc converter topology: SMC as control technique

The modern Power Electronic Systems generally require high quality, portable, light weight, reliable and efficient power supplies. The switched mode power supplies (SMPS) technology is developing very rapidly. This bidirectional dcdc converter has attractive features because of its high efficiency and compact size and is used in various industrial applications. The switching action of converter produces nonlinearities, which affect the overall performance of the converter. Hence there is a need to design an appropriate controller which can handle nonlinear situations and the performance of the converter can be improved. In this paper nonlinear hysteresis modulation based sliding mode controller for said converter is designed. The performance of controller is verified with existing (PI) controller. The results clearly reflects that the designed controller is robust for the converter, has fast response time and reduces overshoot in output voltage as well as in the inductor current as compared with previous research work..

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