Asymmetrical Half-Bridge Double-Input DC/DC Converters Adopting Pulsating Voltage Source Cells for Low Power Applications

作者：Liu Fuxin^*; Wang Zhicheng; Mao Yunyu; Ruan Xinbo

来源：IEEE Transactions on Power Electronics, 2014, 29(9): 4741-4751.

DOI：10.1109/TPEL.2013.2257858

• Asymmetrical half-bridge
• double-input
• multiple-input
• pulsating voltage source cell
• zero-voltage-switching

In the renewable hybrid power system, multiple-input converters (MICs) serve as the interface of several sources with a load, and provide the energy to the load simultaneously or individually, which can optimize the utilization of sources, simplify the system configuration, and reduce the overall cost. In the applications with isolated requirement, available MICs usually have complex configuration and numerous transformer windings. In this paper, a family of asymmetrical half-bridge double-input converters (DICs) adopting pulsating voltage source cells (PVSCs) for low power applications is proposed. Compared with available isolated DICs, the proposed converters have advantages of simple architecture, soft-switching realization, and high conversion efficiency. In this paper, the derivation and feasible control strategy for the proposed converters are illustrated. Specifically, the operation principle of DIC composed of two buck PVSCs is analyzed. Finally, theoretical analysis is validated by the experimental results from a 240 W prototype.

• 出版日期2014-9
• 单位南京航空航天大学; 华中科技大学