A New Coupled Inductor-Based High Step-Up DC-DC Converter for PV Applications

被引：1
|
作者：
Khosroshahi, Alireza Eyvazizadeh [1 ]
Shotorbani, Amin Mohammadpour [1 ]
Dadashzadeh, Hoda [1 ]
Farakhor, Amir [2 ]
Wang, Liwei [1 ]
机构：
[1] Univ British Columbia, Sch Engn, Kelowna, BC, Canada
[2] Univ Tabriz, Dept Elect & Comp Engn, Tabriz, Iran
来源：
2019 IEEE 20TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2019年
关键词：
high step-up; DC-DC converter; coupled inductor; photovoltaic energy system;
D O I：
10.1109/compel.2019.8769630
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a new high step-up cascaded DC-DC converter is presented. The first stage of the proposed converter is a buck-boost converter with a modified circuit structure. The second stage is a boost converter with coupled inductor and voltage multiplier cells. The energy stored in the leakage inductor of the coupled inductor is recycled by a passive voltage clamp to a capacitor thereby improving the efficiency. Besides, the voltage across the main switch is reduced in this structure with voltage clamp circuit. Thus, a switch with a low on resistance could be used which decreases the conduction loss. The steady-state operation of the proposed topology is analyzed and performance of the proposed converter is verified through simulation in MATLAB/SIMULINK to justify the analysis.
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页数：7
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