New interleaved high step-up converter based on a voltage multiplier cell mixed with magnetic devices

被引:6
|
作者
Nouri, Tohid [1 ]
Shaneh, Mahdi [2 ]
机构
[1] Islamic Azad Univ, Sari Branch, Dept Elect Engn, Sari, Iran
[2] Islamic Azad Univ, Najafabad Branch, Smart Microgrid Res Ctr, Najafabad, Iran
关键词
DC-DC power convertors; zero current switching; capacitors; diodes; inductors; switching convertors; voltage multipliers; zero voltage switching; high step-up converter; voltage multiplier cell; magnetic devices; high step voltage ratio converter; voltage gain; CI; transformer; presented converters; BIT structure; low voltage rated semiconductors; magnetic means; interleaved structure; input current ripple; high current power applications; high power applications; power; 600; 0; W; voltage; 24; V; 480; DC-DC CONVERTER; SWITCHED-CAPACITOR; COUPLED-INDUCTOR; MODULE;
D O I
10.1049/iet-pel.2020.0591
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A high step voltage ratio converter is introduced in this study. In order to improve the voltage gain and the voltage stress of semiconductors, coupled-inductor (CI) combined with built-in transformer (BIT) and voltage multiplier cell are employed. Therefore, comparing with previously presented converters in which only CI or BIT structure was used, a greater degree of freedom is obtained. Consequently, the low voltage rated semiconductors can be utilised which in turn decrease the conduction losses. To deal with the ringing phenomenon and reverse recovery problem, zero-current switching turn-on/turn-off are well achieved for switches/diodes via leakage inductances of magnetic means. Moreover, by employing passive clamps, leakage energy is recycled. Furthermore, due to the interleaved structure, the input current ripple is considerably diminished. In addition, the share of input current between different phases is equitable as a result of the charge balance of capacitors. With all these in mind, the proposed structure is a good candidate for high current and high power applications. Finally, in order to validate the effectiveness of the proposed topology, a 600W 24V/480V laboratory prototype is fabricated.
引用
收藏
页码:4089 / 4097
页数:9
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