一种基于基本拓扑的光伏用高增益变换器

邢星围; 冯硕; 安金海; 张畅

doi:10.16513/j.2096-2185.DE.2308209

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分布式能源 ›› 2023, Vol. 8 ›› Issue (2) : 67-75. DOI: 10.16513/j.2096-2185.DE.2308209

应用技术

一种基于基本拓扑的光伏用高增益变换器

邢星围 ¹ ,
冯硕 ² ,
安金海 ¹ ,
张畅 ¹

作者信息 +

A High Gain Converter for Photovoltaic Based on Basic Topologies

Author information +

文章历史 +

摘要

近年来，光伏发电作为重要的补充能源，广泛应用于生产生活中。为最大化光伏输入，DC/DC变换器被用来作为光伏输入侧与负载侧的阻抗匹配。而传统的变换器拓扑受器件特性、结构等因素的约束，并不适用于并网或高压直流汇流等场景，为此，基于基本变换器拓扑，提出一种组合式的适用于光伏的高增益DC/DC变换器。在理论上详细分析变换器的拓扑结构、工作原理、电路参数设计及其性能；同时，在PSIM中搭建仿真模型，并搭建了一台250 W、48 V/300 V的实验样机，实验及仿真表明了相关分析的正确性。与同类型变换器相比，所提出的变换器具有增益高、器件应力低、输入输出电流连续、驱动电路简单的特点，其拓扑具有工程使用价值。

Abstract

In recent years, as an important supplementary energy source, photovoltaic power generation has been widely used in production and life. In order to maximize the photovoltaic input, the DC/DC converter is used as the impedance matching between the photovoltaic input side and the load side. The traditional converter topology is constrained by factors such as device characteristics and is not suitable for grid-connected or high-voltage DC confluence scenarios. Therefore, based on the basic converter topology, this paper proposes a combined high-gain DC/DC converter suitable for photovoltaics. In this paper, the topology, working principle, circuit parameter design and performance analysis of the converter are analyzed in detail. At the same time, a simulation model is built in PSIM and a 250 W, 48 V/300 V experimental prototype is built. Experiments and simulations show the correctness of the relevant analysis. Compared with the same type of converter, the proposed converter has the characteristics of high gain, low device stress, continuous input and output current, and simple drive circuit. The proposed topology has engineering application value.

导出引用

邢星围, 冯硕, 安金海, 等. 一种基于基本拓扑的光伏用高增益变换器[J]. 分布式能源. 2023, 8(2): 67-75 https://doi.org/10.16513/j.2096-2185.DE.2308209

Xingwei XING, Shuo FENG, Jinhai AN, et al. A High Gain Converter for Photovoltaic Based on Basic Topologies[J]. Distributed Energy Resources. 2023, 8(2): 67-75 https://doi.org/10.16513/j.2096-2185.DE.2308209

中图分类号： TK51; TM46

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