| 基于DC/DC变换的光伏系统最大功率跟踪系统仿真 |
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| 引用本文： | 俞天艺,杨鹏,刘松. 基于DC/DC变换的光伏系统最大功率跟踪系统仿真[J]. 机电工程, 2011, 28(10): 1281-1283,1290 |
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| 作者姓名： | 俞天艺 杨鹏 刘松 |
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| 作者单位： | 扬州大学能源与动力工程学院,江苏扬州,225127 |
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| 摘 要： | 光伏电池的输出功率受外界环境的影响,具有非线性特征,其最大值只存在于某一特定点.为了提高系统效率,有必要通过最大功率跟踪(MPPT)的控制方法来实现对其输出功率进行跟踪控制.在分析传统的干扰观察法的工作原理后,提出了自适应占空比观察法,克服了传统定步长跟踪算法的缺点.在光伏电池的输出伏安特性和数学模型基础上,通过Mat...
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| 关 键 词： | 光伏阵列 最大功率跟踪 干扰观察法 变步长 |
Simulation of MPPT control algorithms for photovoltaic system based on DC/DC |
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| YU Tian-yi,YANG Peng,LIU Song. Simulation of MPPT control algorithms for photovoltaic system based on DC/DC[J]. Mechanical & Electrical Engineering Magazine, 2011, 28(10): 1281-1283,1290 |
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| Authors: | YU Tian-yi YANG Peng LIU Song |
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| Affiliation: | (College of Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China) |
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| Abstract: | Because the output of photovoltaic （PV） is influenced by external environment, the output power is nonlinear. Aiming at making full use PV, the output power of PV is necessarily tracked and controlled by maximum power point tracking（MPPT）. A modified adaptive perturbation and observation （P＆O） which can overcome the disadvantage of traditional P＆O was proposed after analyzing the operational principle of traditional P＆O. According to the engineering mathematic model and the output characteristics of PV, the model of PV array was set up by Matlab/Simulink. The results indicate that the system can track the maximum power point smoothly and quickly than the system used the traditional P＆O. |
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| Keywords: | photovoltaic （PV）array maximum power point tracking（MPPT） perturbation and observation method（P＆O） variable step |
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