| 三相光伏并网系统的控制策略研究 |
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| 引用本文： | 郑诗程,夏伟.三相光伏并网系统的控制策略研究[J].电气技术,2007(3):43-46. |
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| 作者姓名： | 郑诗程 夏伟 |
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| 作者单位： | 安徽工业大学电气信息学院,马鞍山,243002 |
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| 基金项目： | 安徽省青年科技基金资助项目(2006jql086zd) |
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| 摘 要： | 本文分析了光伏并网发电系统的工作原理,针对光伏并网发电系统的功率输出级进行了PWM控制策略研究。提出了并网逆变器的直接电流控制策略,并采用电网电压前馈和固定开关频率的控制方案;获得了较快的电流响应速度,实现了并网电流的正弦化和单位功率因数。
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| 关 键 词： | 光伏并网系统 直接电流控制 电压前馈 固定开关频率 |
Study on Control Strategy of Three Phase Photovoltaic Grid-connected System |
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| Zheng Shicheng,Xia wei.Study on Control Strategy of Three Phase Photovoltaic Grid-connected System[J].Electrical Engineering,2007(3):43-46. |
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| Authors: | Zheng Shicheng Xia wei |
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| Abstract: | The principle of photovoltaic grid-connected generation system is analyzed,and the research on PWM control strategy is done based on the power output side of photovoltaic grid-connected generation system.The direct current control strategy of photovoltaic grid-connected inverter is presented.The control fashion of applying fixed switch frequency and the feed-forward compensation control of utility grid voltage is introduced.The current response speed is proved to be faster,and the grid-connected current waveform is sine and the power factor is unity. |
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| Keywords: | photovoltaic grid-connected dystem direct current control voltage feed-forward control fixed switch frequency |
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