A Three-state Dual-inductance Bi-directional Converter Topology for Rapid Suppression of Pulsed load Power

Le résumé fourni par la source

In order to balance the instantaneous power difference between the pulsed load and the power supply system, a bi-directional DC/DC converter is typically connected in parallel with the pulsed load. However, when the pulsed load varies between light and heavy loads, significant transient current spikes occur in the current of pre-stage power supply system. To solve this problem, previous study has proposed a three-state dual-inductance bi-directional converter topology. However, it requires multiple additional components, resulting in increased cost and reduced power density. Therefore, based on this topology, this paper proposes a novel three-state dual-inductance bi-directional converter, which effectively reduces the number of switching devices by reusing both the inductor freewheeling circuit and the main working circuit. Finally, simulation results show that the proposed novel three-state dual-inductance bi-directional converter can quickly suppress pulsed load power. Moreover, with fewer switching devices, it achieves the same current spike suppression performance as the traditional three-state dual-inductance bi-directional converter topology. Therefore, the proposed topology can effectively reduce costs, ensure the stability of the power supply system, and facilitate the miniaturization of power supply systems.

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