High-efficiency module-integrated photovoltaic power conditioning system

被引：52

作者：

Kwon, J. -M. ^{[1
]}

Kwon, B. -H. ^{[1
]}

Nam, K. -H. ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang 790784, Kyungbuk, South Korea

来源：

IET POWER ELECTRONICS | 2009年 / 2卷 / 04期

关键词：

D O I：

10.1049/iet-pel.2008.0023

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 module-integrated, photovoltaic (PV) power conditioning system with a high-efficiency, high step-up DC DC converter is proposed. The step-up DC DC converter employs an active-clamp circuit for soft switching of the power semiconductor switches. Also, a dual series-resonant rectifier is employed in order to remove the reverse-recovery problem of the output-rectifying diodes and to provide a much higher voltage conversion ratio. The PV current is estimated without using a DC current sensor, and the PV current ripple reduction technique is suggested to reduce the current ripple without an external component A 1 kW prototype for the PV voltage range of 30-60 V is implemented, and all algorithms and controllers are implemented on a single-chip microcontroller. Experimental results show that the power efficiency is 92.5-94% and the ripple current is 3.5% of the rated input current.

引用

页码：410 / 420

页数：11

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