A New Interleaved Double-Input Three-Level Boost Converter

作者:Chen, Jianfei*; Hou, Shiying; Sun, Tao; Deng, Fujin; Chen, Zhe
来源:Journal of Power Electronics, 2016, 16(3): 925-935.
DOI:10.6113/JPE.2016.16.3.925

摘要

This paper proposes a new interleaved double-input three-level Boost (DITLB) converter, which is composed of two boost converters indirectly in series. Thus, a high voltage gain, together with a low component stress and a small input current ripple due to the interleaved control scheme, is achieved. The operating principle of the DITLB converter under the individual supplying power (ISP) and simultaneous supplying power (SSP) mode is analyzed. In addition, closed-loop control strategies composed of a voltage-current loop and a voltage-balance loop, have been researched to make the converter operate steadily and to alleviate the neutral-point imbalance issue. Experimental results verify correctness and feasibility of the proposed topology and control strategies.