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论文:2020,Vol:38,Issue(3):533-539 |
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引用本文： |
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赵犇, 马瑞, 皇甫宜耿, 魏江. 基于单输入多输出推挽变换器的光伏均衡器[J]. 西北工业大学学报 |
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ZHAO Ben, MA Rui, HUANGFU Yigeng, WEI Jiang. Photovoltaic Equalizer Based on Single-Input Multi-Output Push-Pull Converter[J]. Northwestern polytechnical university |
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| 基于单输入多输出推挽变换器的光伏均衡器 |
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| 赵犇1, 马瑞1, 皇甫宜耿1, 魏江2 |
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1. 西北工业大学 自动化学院, 陕西 西安 710072;
2. 大唐西北电力实验研究院, 陕西 西安 710018 |
| 摘要: |
| 组件串联型光伏系统（包括集中式、组串式、多串式等）由于局部阴影遮蔽常导致组件失配，从而造成较大的发电量损失。光伏均衡器能够在不改变现有光伏系统架构的前提下，通过并联电力电子变换器处理失配条件下的差分功率，从而实现所有组件工作在其最大功率点附近，因而可以大大提升光伏系统在失配条件下的发电量。提出了一种基于单输入多输出推挽变换器的光伏均衡器，该拓扑具有结构简单、开关器件少等优点。首先对光伏组件的遮蔽问题进行了介绍，并对光伏均衡器的原理进行了阐述；继而对所提出的光伏均衡器系统的拓扑结构及工作原理进行详细的分析说明；最后对所设计的光伏均衡器进行仿真验证。仿真结果表明，所提出的光伏均衡器能够大幅提升光伏系统在失配条件下的发电量，最大提升量可达41.4%。 |
| 关键词:
光伏发电
光伏均衡器
局部阴影
单输入多输出
推挽变换器
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| Photovoltaic Equalizer Based on Single-Input Multi-Output Push-Pull Converter |
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| ZHAO Ben1, MA Rui1, HUANGFU Yigeng1, WEI Jiang2 |
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1. School of Automation, Northwestern Polytechnical University, Xi'an 710072, China;
2. Datang Northwest Electric Power Test&Research Institute, Xi'an 710018, China |
| Abstract: |
| Component mismatch often happens in the module-series photovoltaic system(including centralized, string, multi-strings PV system) due to partial shadowing, which causes a large loss of power generation. Photovoltaic equalizer can process the differential power under the condition of mismatching through parallel power electronic converter without changing the existing photovoltaic system architecture, so that all the modules can work near their maximum power points, which can greatly improve the power generation of the system under the condition of mismatching. This paper proposes a photovoltaic equalizer based on single-input multi-output push-pull converter. The topology has the advantages of simple structure and less switching devices. Firstly, the paper introduces the partial shadowing problem of photovoltaic modules and the principle of photovoltaic equalizer. Then, the topological structure and working principle of the proposed photovoltaic equalizer system are analyzed in detail. Finally, the simulation and verification of the designed photovoltaic equalizer are carried out. The simulated results show that the proposed equalizer can greatly improve the generation capacity of photovoltaic system under mismatching conditions, and the maximum increment can be up to 41%. |
| Key words:
photovoltaic power generation
photovoltaic equalizer
partial shadowing
single-input multi-output structure
push-pull converter
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| 收稿日期: 2019-07-06
修回日期:
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| DOI: 10.1051/jnwpu/20203830533 |
| 基金项目: 国家自然科学基金（51807164）、陕西省重点研发计划（2018GY-073）与西安市科协2018年青年人才托举计划资助 |
| 通讯作者:
Email： |
| 作者简介: 赵犇(1987-),西北工业大学助理研究员、博士,主要从事新能源电力电子变换器研究。
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| 作者相关文章 |
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| 赵犇 在本刊中的所有文章 |
| 马瑞 在本刊中的所有文章 |
| 皇甫宜耿 在本刊中的所有文章 |
| 魏江 在本刊中的所有文章 |
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参考文献: |
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[1] JEON Y, PARK J. Unit-Minimum Least Power Point Tracking for the Optimization of Photovoltaic Differential Power Processing Systems[J]. IEEE Trans on Power Electronics, 2019, 34(1):311-324
[2] UNO M, KUKITA A. Single-Switch Voltage Equalizer Using Multistacked Buck-Boost Converters for Partially Shaded Photovoltaic Modules[J]. IEEE Trans on Power Electronics, 2015, 30(6):3091-3105
[3] VILLA L F L, RAISON B, CREBIER J C. Toward the Design of Control Algorithms for a Photovoltaic Equalizer:Detecting Shadows through Direct Current Sampling[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2014, 2(4):893-906
[4] 杜进,王睿驰,王志鹍,等. 并联型单开关管光伏组件优化器的研究与设计[J]. 电工技术学报,2017,32(24):184-192 DU Jin, WANG Ruichi, WANG Zhikun, et al. Design and Analysis of a Parallel Single-Switch Panel-Integrated PV Optimizer[J]. Transactions of China Electrotechnical Society, 2017, 32(24):184-192(in Chinese)
[5] ZHANG W, LI J, MAO P. A Novel Isolated-Port Voltage Equalizer for Photovoltaic Systems under Mismatch Conditions[C]//43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, 2017:639-644
[6] SHIMIZU T, HASHIMOTO O, KIMURA G. A Novel High-Performance Utility-Interactive Photovoltaic Inverter System[J]. IEEE Trans on Power Electronics, 2003, 18(2):704-711
[7] 祝祥亮,王越,蔡慧, 等. 基于开关电容的光伏组件能量优化方法研究[J]. 中国计量大学学报,2019,30(3):299-307 ZHU Xiangliang, WANG Yue, CAI Hui, et al. Research on Energy Optimization Method of Photovotaic Modules Based on Switched Capacitor[J]. Journal of China Jiliang University, 2019, 30(3):299-307(in Chinese)
[8] SHENOY P S, KIM K A, JOHNSON B B, et al. Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems[J]. IEEE Trans on Power Electronics, 2013, 28(6):2968-2979
[9] SHIMIZU T, HIRAKATA M, KAMEZAWA T, et al. Generation Control Circuit for Photovoltaic Modules[J]. IEEE Trans on Power Electronics, 2001, 16(3):293-300
[10] 张卫平,潘玥,张晓强,等. 用于PV组串的单输入-多输出电流均衡器的建模与仿真[J]. 电源学报,2017,15(6):19-25 ZHANG Weiping, PAN Yue, ZHANG Xiaoqiang, et al. Modeling and Simulastion of Single Input-Multi Output Current Equalizer for PV Modules[J]. Journal of Power Supply, 2017, 15(6):19-25(in Chinese)
[11] UNO M, SHINOHARA T. Module-Integrated Converter Based on Cascaded Quasi-Z-Source Inverter with Differential Power Processing Capability for Photovoltaic Panels under Partial Shading[J]. IEEE Trans on Power Electronics, 2019, 34(12):11553-11565
[12] SHINOHARA T, UNO M. Micro-Inverter Based on Quasi-Z-Source Inverter Integrating Switchless Voltage Equalizer for Photovoltaic Panels under Partial Shading[C]//2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, Kaohsiung, 2017:2013-2018 |
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