High step-up interleaved zero-voltage transition DC-DC converter with coupled inductors

被引：13

作者：

Mirzaei, Amin ^{[1
]}

Rezvanyvardom, Mahdi ^{[1
]}

Mekhilef, Saad ^{[2
,3
,4
]}

机构：

[1] Arak Univ, Dept Elect Engn, Fac Engn, Arak, Iran

[2] Univ Malaya, Dept Elect Engn, Power Elect & Renewable Energy Res Lab, Kuala Lumpur 50603, Malaysia

[3] Swinburne Univ Technol, Sch Software & Elect Engn, Melbourne, Vic 3122, Australia

[4] King Abdulaziz Univ, Ctr Res Excellence Renewable Energy & Power Syst, Jeddah 21589, Saudi Arabia

来源：

IET POWER ELECTRONICS | 2020年 / 13卷 / 19期

关键词：

switching convertors; zero voltage switching; DC-DC power convertors; power inductors; power capacitors; zero current switching; diodes; photovoltaic power systems; energy storage; laboratory techniques; coupled inductors; voltage gain; auxiliary switches; power diodes; active clamp auxiliary cell; voltage lift capacitor; leakage inductors; continuous current mode; high step-up interleaved zero-voltage transition DC-DC converter; ripple current; voltage stress; soft-switching condition; photovoltaic applications; voltage lift capacitors; pulse width modulation; laboratory prototype; switching frequency; frequency; 100; 0; kHz; voltage; 420; V; power; 210; W; 40; AUXILIARY SWITCH; BOOST CONVERTERS; ZVT CONVERTER; DESIGN; CELL;

D O I：

10.1049/iet-pel.2020.0901

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-up DC-DC converter which is applied to a voltage lift capacitor and coupled inductors to increase the voltage gain is proposed in this study. Moreover, the interleaved structure is applied in the converter to decrease the input ripple current. Besides, the voltage stress across the main and auxiliary switches is low. Furthermore, all switches and diodes have the soft-switching condition by using an active clamp auxiliary cell. Consequently, the proposed converter has a high efficiency which is ideal for photovoltaic applications. Energy stored in the coupled inductors is transferred to the voltage lift capacitors and then transmitted to the output. Therefore, no voltage spikes caused by leakage inductors are created on the main switches. The converter operates in continuous current mode and its control remains in pulse width modulation. A 210 W laboratory prototype of the converter with 40 V input voltage and 420 V output voltage under 100 kHz switching frequency is constructed and experimental results confirm the theoretical analysis. Low voltage stress, low input ripple current and high efficiency (96.5%) show the superiority in the operation of the proposed converter in comparison with other similar structures.

引用

页码：4518 / 4531

页数：14

共 29 条

[1] A Novel High Step-up DC/DC Converter Based on Integrating Coupled Inductor and Switched-Capacitor Techniques for Renewable Energy Applications [J].