Analysis and Design of Distributed Transformers for Solar Power Conversion

被引：0

作者：

Zhang, Kejiu ^{[1
]}

Wu, Thomas ^{[1
]}

Hu, Haibing ^{[1
]}

Qian, Zhijun ^{[2
]}

Chen, Frank ^{[1
]}

Rustom, Khalid ^{[3
]}

Kutkut, Nasser ^{[1
]}

Shen, John ^{[1
]}

Batarseh, Issa ^{[1
]}

机构：

[1] Univ Cent Florida, Orlando, FL 32816 USA

[2] Linear Technol Corp, Milpitas, CA 95035 USA

[3] Petra Solar, Orlando, FL 32801 USA

来源：

2011 TWENTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2011年

关键词：

CORE LOSS MODEL;

D O I：

暂无

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：

In this paper, a high efficiency, low profile design of distributed transformers (DT) for grid-tied photovoltaic (PV) inverter is presented. The proposed DTs fully integrated into the dual-flyback converter maximize the DC/DC stage efficiency in whole load conditions. The developed DTs with the built-in current sensing transformer allows the converter works in boundary conduction mode (BCM) or discontinues conduction mode (DCM) due to the variable nature of solar power with zero current switching (ZCS). Analytical loss model is established to optimize the value of magnetizing inductance which determines the switching frequency and converter overall efficiency. Various techniques are also taken to minimize the winding loss of the DTs. The experimental prototype employing the DTs achieves over 96% efficiency at full load condition.

引用

页码：1692 / 1697

页数：6

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