에너지 저장 시스템을 위한 비절연 양방향 ZVT DC-DC 컨버터

Nonisolated Bidirectional ZVT DC-DC Converter for an Energy Storage System

  • Han, Ji-tai (Department of Electrical Engineering, Hanyang University) ;
  • Lim, Chang-soon (Department of Electrical Engineering, Hanyang University) ;
  • Kim, Rae-young (Department of Electrical Engineering, Hanyang University) ;
  • Hyun, Dong-seok (Department of Electrical Engineering, Hanyang University)
  • 발행 : 2012.11.23

초록

The paper presents a non-isolated bidirectional DC-DC converter for use in renewable power generation, battery, electric vehicles (EV) and small scale DC-UPS systems. In the propose design, the conventional interleaved operation of two-inductor boost structure is modified to accommodate bidirectional operation, and zero-voltage-transition (ZVT) is applied, where both the switch and the rectifier diode achieve soft condition without increasing their voltage and current stresses. The proposed converter has the merits of simple circuitry, reduced size, low cost and high efficiency. The operation principle of the converter is analyzed and verified. Also, simulation results of the proposed bidirectional dc-dc converter is shown.

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