A boost converter with capacitor multiplier and coupled inductor for AC module applications

Shih Ming Chen, Tsorng Juu Liang, Lung Sheng Yang, Jiann Fuh Chen

研究成果: Article

130 引文 斯高帕斯(Scopus)

摘要

The grid-connected AC module is an alternative solution in photovoltaic (PV) generation systems. It combines a PV panel and a micro-inverter connected to grid. The use of a high step-up converter is essential for the grid-connected micro-inverter because the input voltage is about 15 V to 40 V for a single PV panel. The proposed converter employs a Zeta converter and a coupled inductor, without the extreme duty ratios and high turns ratios generally needed for the coupled inductor to achieve high step-up voltage conversion; the leakage-inductor energy of the coupled inductor is efficiently recycled to the load. These features improve the energy-conversion efficiency. The operating principles and steady-state analyses of continuous and boundary conduction modes, as well as the voltage and current stresses of the active components, are discussed in detail. A 25 V input voltage, 200 V output voltage, and 250 W output power prototype circuit of the proposed converter is implemented to verify the feasibility; the maximum efficiency is up to 97.3%, and full-load efficiency is 94.8%.

原文English
文章編號6029331
頁(從 - 到)1503-1511
頁數9
期刊IEEE Transactions on Industrial Electronics
60
發行號4
DOIs
出版狀態Published - 2013 一月 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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