| 基于级联逆变器的光伏并网发电系统控制策略 |
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| 引用本文： | 周晓进,陈元娣. 基于级联逆变器的光伏并网发电系统控制策略[J]. 电力电子技术, 2012, 46(4): 51-53 |
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| 作者姓名： | 周晓进 陈元娣 |
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| 作者单位： | 1. 中国人民解放军95992部队,北京,100162
2. 空军雷达学院,湖北武汉,430019 |
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| 摘 要： | 提出了基于混合控制的级联逆变器光伏并网发电系统的双级控制策略。通过控制电流瞬时值反馈滞环控制单元输入电压值为恒定,将输入电压控制和光伏系统并网电流控制解耦,简化了控制器设计。该双级控制策略可在进行最大功率点跟踪(MPPT)的同时保证并网电流质量。对该控制策略进行了分析,对瞬时值反馈单元双环控制器参数进行了设计。最后进行了实验,结果验证了所提出的控制方法的有效性。
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| 关 键 词： | 逆变器 瞬时值电流反馈控制 光伏并网 |
Control Strategy of Photovoltaic Grid-connected Power Generation System Based on Cascaded Inverter |
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| ZHOU Xiao-jin , CHEN Yuan-di. Control Strategy of Photovoltaic Grid-connected Power Generation System Based on Cascaded Inverter[J]. Power Electronics, 2012, 46(4): 51-53 |
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| Authors: | ZHOU Xiao-jin CHEN Yuan-di |
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| Affiliation: | 1.95992 Army of PLA,Beijing 100162,China) |
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| Abstract: | This paper presents the two-stage control strategy specifically suit for the photovoltaic grid-connected power generation system based on hybrid controlled cascaded inverter.By controlling the input voltage of the instantaneous feedback unit to be constant,the input voltage control and the grid current regulation are decoupled and simplified. The two-stage control strategy can ensure the grid current quality.also can realize the MPPT control.The control strategy is analyzed and the adjuster parameters are designed.At last,the experiment reasearch is conducted,the results indicate that the control design is rational. |
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| Keywords: | inverter instantaneous current feedback control photovoltaic grid-connected |
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