| 基于调制策略的光伏并网逆变器效率优化 |
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| 引用本文： | 李敏,胡长生,陈敏,沈国桥,徐德鸿.基于调制策略的光伏并网逆变器效率优化[J].电源学报,2011,9(2):59-63. |
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| 作者姓名： | 李敏 胡长生 陈敏 沈国桥 徐德鸿 |
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| 作者单位： | 浙江大学电气工程学院电力电子研究所,浙江大学电气工程学院电力电子研究所,浙江大学电气工程学院电力电子研究所,浙江大学电气工程学院电力电子研究所,浙江大学电气工程学院电力电子研究所 |
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| 摘 要： | 光伏并网逆变器的效率是光伏发电系统的一个重要指标,该文从提高光伏并网逆变器效率的角度出发,针对不同的调制策略,分析了光伏并网逆变器主电路开关器件、滤波电感以及变压器的损耗,比较了两种空间矢量调制方法对逆变器效率的影响,得出优化方案,并在研制的100kW光伏并网逆变器进行了实验验证。
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| 关 键 词： | 空间矢量调制 损耗分析 效率 |
| 收稿时间： | 2011/1/12 0:00:00 |
| 修稿时间： | 2011/1/15 0:00:00 |
Efficiency Optimization of Grid-connected PV Inverter Based on Modulation Scheme |
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| LI Min,HU Chang-sheng,CHEN Min,SHEN Guo-qiao and XU De-hong.Efficiency Optimization of Grid-connected PV Inverter Based on Modulation Scheme[J].Journal of power supply,2011,9(2):59-63. |
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| Authors: | LI Min HU Chang-sheng CHEN Min SHEN Guo-qiao and XU De-hong |
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| Affiliation: | Institute of Power Electronics, College of Electrical Engineering, Zhejiang University,Institute of Power Electronics, College of Electrical Engineering, Zhejiang University,Institute of Power Electronics, College of Electrical Engineering, Zhejiang University,Institute of Power Electronics, College of Electrical Engineering, Zhejiang University and Institute of Power Electronics, College of Electrical Engineering, Zhejiang University |
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| Abstract: | The efficiency of the grid-connected PV inverter is an important index in PV system. Aiming at improving the efficiency of grid-connected PV inverter, the losses of switching devices, filter inductor and transformer of grid-connected PV inverter were analyzed with different modulation schemes. The impacts of two space vector modulation schemes on the efficiency of inverters were compared in order to obtain an optimal solution. The experiment result of a 100kW photovoltaic inverter was provided for the validation. |
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| Keywords: | space vector modulation(SVM) loss breakdown efficiency |
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