Nonisolated High Gain DC-DC Converter for DC Microgrids

被引：205
作者：
Lakshmi, M. [1 ]
Hemamalini, S. [1 ]
机构：
[1] VIT Univ, Sch Elect Engn, Chennai 600127, Tamil Nadu, India
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2018年 / 65卷 / 02期
关键词：
Efficiency analysis; nonisolated high gain dc-dc converter; voltage stress on switches and diodes; HIGH-STEP-UP; BOOST CONVERTER; SINGLE-SWITCH; ACTIVE CLAMP; COUPLED INDUCTORS; CELL; SYSTEMS; FAMILY;
D O I：
10.1109/TIE.2017.2733463
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
DC microgrids are popular due to the integration of renewable energy sources such as solar photovoltaics and fuel cells. Owing to the low output voltage of these dc power generators, high efficient high gain dc-dc converters are in need to connect the dc microgrid. In this paper, a nonisolated high gain dc-dc converter is proposed without using the voltage multiplier cell and/or hybrid switched-capacitor technique. The proposed topology utilizes two nonisolated inductors that are connected in series/parallel during discharging/charging mode. The operation of switches with two different duty ratios is the main advantage of the converter to achieve high voltage gain without using extreme duty ratio. The steady-state analysis of the proposed converter using two different duty ratios is discussed in detail. In addition, a 100 W, 20/200 V prototype circuit of the high gain dc-dc converter is developed, and the performance is validated using experimental results.
引用
收藏
页码：1205 / 1212
页数：8
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