| 光伏系统直流变换器的建模与仿真 |
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| 引用本文： | 周雪松,郭润睿,马幼捷.光伏系统直流变换器的建模与仿真[J].天津师范大学学报(自然科学版),2008,28(2):59-63. |
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| 作者姓名： | 周雪松 郭润睿 马幼捷 |
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| 作者单位： | 天津理工大学,天津,300191 |
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| 摘 要： | 从推动光伏产业发展的角度讨论了在我国有发展前景的光伏并网系统电路结构，对多支路、两极式光伏并网发电系统的直流变换器进行了重点研究．在理论分析的基础上，建立了光伏电池、Boost变换器及其MPPT控制模块的仿真模型，对MPPT的主要算法进行了对比仿真，提出在早晚太阳辐射较弱的时间段，提高光能利用率行之有效的措施．仿真结果用于指导光伏系统直流变换器的设计及其控制算法的选择．
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| 关 键 词： | 光伏系统 Boost变换器 MPPT 建模与仿真 |
| 文章编号： | 1671-1114(2008)02-0059-05 |
| 修稿时间： | 2007年12月27 |
The model and emulation of DC-DC converter applied to photovoltaic(PV) system |
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| ZHOU Xuesong,GUO Runrui,MA Youjie.The model and emulation of DC-DC converter applied to photovoltaic(PV) system[J].Journal of Tianjin Normal University(Natural Science Edition),2008,28(2):59-63. |
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| Authors: | ZHOU Xuesong GUO Runrui MA Youjie |
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| Institution: | (Tianjin University of Technology, Tianjin 300191, China) |
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| Abstract: | From the angle of promoting the photovoltaic industry, the circuit structure of grid-connected photovoltaic （PV） system which has prospects in China is discussed, and the DC-DC converters of the multi-branch and bipolar grid-connected PV systems are focused on. Based on theoretical analysis, the emulation models of photovoltaic cell, Boost converter and MPPT control module are established, and two MPPT control algorithms are compared and em- ulated. Under the condition of low solar radiation in the morning or in the evening, some effective measures of rai- sing the utilization ratio of solar energy are proposed. The results can be used for guiding the design of DC-DC converter in PV system and the choice of MPPT control algorithms. |
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| Keywords: | PV system Boost converter MPPT model and emulation |
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