电感器
电压倍增器
电容器
电气工程
升压变换器
电感
电压
电子工程
高压
开关电容器
拓扑(电路)
工程类
计算机科学
功率因数
电压优化
作者
Ali Ajami,Hossein Ardi,Amir Farakhor
出处
期刊:IEEE Transactions on Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2015-08-01
卷期号:30 (8): 4255-4263
被引量:312
标识
DOI:10.1109/tpel.2014.2360495
摘要
In this paper, a novel high step-up dc/dc converter is presented for renewable energy applications. The suggested structure consists of a coupled inductor and two voltage multiplier cells, in order to obtain high step-up voltage gain. In addition, two capacitors are charged during the switch-off period, using the energy stored in the coupled inductor which increases the voltage transfer gain. The energy stored in the leakage inductance is recycled with the use of a passive clamp circuit. The voltage stress on the main power switch is also reduced in the proposed topology. Therefore, a main power switch with low resistance R DS (ON) can be used to reduce the conduction losses. The operation principle and the steady-state analyses are discussed thoroughly. To verify the performance of the presented converter, a 300-W laboratory prototype circuit is implemented. The results validate the theoretical analyses and the practicability of the presented high step-up converter.
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