| 高频隔离光伏并网系统中DC/DC变换器的研究 |
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| 引用本文： | 邵文,杜少武,戴鹏,李新杰.高频隔离光伏并网系统中DC/DC变换器的研究[J].电气自动化,2011,33(1):26-28. |
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| 作者姓名： | 邵文 杜少武 戴鹏 李新杰 |
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| 作者单位： | 合肥工业大学,安徽,合肥,230009 |
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| 摘 要： | 针对光伏电池阵列的宽输出电压范围特性,为了实现变换器的宽电压输入和输出范围特性,采用滞后臂串阻塞二极管的FB-ZVZCS-PWM变换器拓扑对光伏并网系统中的DC/DC环节进行了设计分析.该电路拓扑通过超前桥臂开并管上并联电容实现ZVS,利用滞后臂串二极管阻止零状态下反向环流的产生从而实现ZCS.论文分析了该变换器的工作...
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| 关 键 词： | 软开关 变换器 光伏并网 |
Research on DC/DC Converter for High-frequency Isolated Grid-connected Photovoltaic System Application |
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| Shao Wen,Du Shaowu,Dai Peng,Li Xinjie.Research on DC/DC Converter for High-frequency Isolated Grid-connected Photovoltaic System Application[J].Electrical Automation,2011,33(1):26-28. |
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| Authors: | Shao Wen Du Shaowu Dai Peng Li Xinjie |
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| Affiliation: | Dai Peng(Hefei University of Technology,Heifei Anhui230009,China) |
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| Abstract: | In this paper,regarding to the wide range of output voltage character of solar cell,in order to achieve the wide range input and output character of the converter,a FB-ZVZCS-PWM converter topology with blocking diodes connected in series in lagging leg switches is applied to analyze and design the DC/DC part in grid-connected Photovoltaic System.In this topology,a capacitor connected parallel with the leading switch realizes ZVS,and blocking diodes is connected in series in lagging leg switches to prevent reverse current which should be produced in zero state and make ZCS.This article analyzes the converter’s operating principle and its modes of all stages,and introduces the parameters design of its main devices,then makes a 3KW,36KHz grid-connected photovoltaic system DC/DC converter by controlling the sampling of average current.This converter is finally validated through the waveform experiments. |
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| Keywords: | soft switching converter grid-connected photovoltaic |
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