TWO STAGE BIDIRECTIONAL DC-DC CONVERTER FOR BATTERY HYBRID POWER GENERATORS
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Abstract
In this paper a two stage bidirectional resonantdc-dc converter is introduced for battery hybrid power generators. The bidirectional dc-dc converter consists of two stage, one is series resonant converter and another is non isolated half bridge dc-dc converter. The zero current switching is applied to series resonant converter so that magnetic components and EMI filters can be optimized. The PI controller is used for non-isolated converter. The high side voltage and low side voltage are regulated efficiently due PI controller. The application two stage bidirectional dc-dc converter is in uninterrupted power system to provide additional power to critical ac loads. The MATLAB simulation of step-up and step-down mode of bidirectional dc-dc converter is provided validate performance of proposed two stage bidirectional dc-dc converter.
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