| 单相两级式光伏并网发电系统的研究与设计 |
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| 引用本文： | 张珍,韦忠朝. 单相两级式光伏并网发电系统的研究与设计[J]. 湖北工业大学学报, 2011, 26(1): 20-24 |
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| 作者姓名： | 张珍 韦忠朝 |
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| 作者单位： | 华中科技大学电气与电子工程学院,湖北武汉,430074 |
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| 摘 要： | 设计了一套基于英飞凌XE164单片机的单相两级式500W光伏并网发电系统.分析了系统的结构和控制原理,进行了孤岛保护的软件设计.实验结果表明,可输出稳定的220 V交流电压,实现了光伏系统电流型并网.通过高频变换降低成本,实现装置的小型化.
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| 关 键 词： | 光伏并网 拓扑 控制策略 孤岛保护 |
Research and Design on Single-phase Two-stage Grid-connected Photovoltaic Generation System |
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| ZHANG Zhen,WEI Zhong-chao. Research and Design on Single-phase Two-stage Grid-connected Photovoltaic Generation System[J]. Journal of Hubei University of Technology, 2011, 26(1): 20-24 |
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| Authors: | ZHANG Zhen WEI Zhong-chao |
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| Affiliation: | (Huazhong Univ.of Sci.and Tech.,Electric Engin.and Control,Wuhan 430074,China) |
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| Abstract: | From the design requirements,analyzing of different topologies and comparing their efficiency and control effectiveness,and then design a 500W single-phase two-stage grid-connected PV system based on the microcontroller of Infineon XE164.The paper analyses the system structure and control principles,and designs the software flowchart of island protected.The experimental results show that the output can achieve stable 220 V AC voltage,the sine-wave output current synchronized with grid voltage is realized.The system has advantages of s mall volume and low cost due to the energy is transferred through high frequency conversion. |
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| Keywords: | photovoltaic grid-connected topology control strategy Islanding protecting |
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