| 不同MPPT架构光伏系统发电效率的比较研究 |
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| 引用本文： | 宁勇,戴瑜兴,王镇道,彭子舜,王洪.不同MPPT架构光伏系统发电效率的比较研究[J].电子学报,2016,44(9):2134-2140. |
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| 作者姓名： | 宁勇 戴瑜兴 王镇道 彭子舜 王洪 |
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| 作者单位： | 1. 湖南大学电气与信息工程学院, 湖南长沙 410082;
2. 温州大学物理与电子信息工程学院, 浙江温州 325035;
3. 湖南大学物理与微电子科学学院, 湖南长沙 410082;
4. 湖南师范大学工程与设计学院, 湖南长沙 410081 |
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| 基金项目： | 湖南省科技计划资助项目(2014FJ3155) |
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| 摘 要： | 光伏系统的MPPT架构有集中式、组串式和分布式三种类型.不同MPPT架构光伏系统组件串并联结构不同，对局部阴影和组件参数失配产生的输出功率损失表现出的抑制能力不一样，发电效率有明显差别.本文对不同MPPT架构光伏系统的发电效率进行比较研究，结果表明因局部阴影与组件参数失配影响，分布式MPPT光伏系统年均发电量比集中式MPPT光伏系统提高约4.65%～19.62%，比组串式MPPT光伏系统提高约2.64%～12.86%，具体数值随发生阴影时间比例、参数失配幅度增大而变大，且与具体阴影情形有关.
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| 关 键 词： | MPPT架构 光伏系统 发电效率 局部阴影 组件参数失配 |
| 收稿时间： | 2015-01-15 |
A Comparative Study of Central and Grouped and Distributed MPPT Architectures for Power Generation Efficiency of Photovoltaic Syste m |
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| NING Yong,DAI Yu-xing,WANG Zhen-dao,PENG Zi-shun,WANG Hong.A Comparative Study of Central and Grouped and Distributed MPPT Architectures for Power Generation Efficiency of Photovoltaic Syste m[J].Acta Electronica Sinica,2016,44(9):2134-2140. |
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| Authors: | NING Yong DAI Yu-xing WANG Zhen-dao PENG Zi-shun WANG Hong |
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| Affiliation: | 1. College of Electrical and Information Engineering, Hunan University, Changsha, Hunan 410082, China;
2. Colllege of Physics and Electronic Information Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China;
3. School of Physics and Electronics, Hunan University, Changsha, Hunan 410082, China;
4. College of Engineering and Design, Hunan Normal University, Changsha, Hunan 410081, China |
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| Abstract: | There are three different MPPT architectures in photovoltaic system:central,grouped and distributed archi-tecture,and their power generation efficiencies are researched respectively.The simulation results show that the annual gener-ation capacity of photovoltaic system with distributed MPPT architecture can be increased up to 4.65%~19.62%compared to system with central MPPT,and 2.64% ~12.86% compared to system with grouped MPPT.The actual efficiency in-creasement varies with the proportion of time partial shading and the degree of module parameter mismatch,and is independ-ent of specific shadow mode respectively. |
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| Keywords: | MPPT architectures photovoltaic system power generation efficiency partial shading module parameter mis-match |
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