| 基于GA的光伏MPPT变加速扰动法的研究 |
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| 引用本文： | 李圣清,吴文凤,张煜文,明瑶.基于GA的光伏MPPT变加速扰动法的研究[J].电测与仪表,2018,55(8):7-11. |
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| 作者姓名： | 李圣清 吴文凤 张煜文 明瑶 |
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| 作者单位： | 湖南工业大学电气与信息工程学院 |
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| 基金项目： | 国家自然科学基金(61673165);湖南省自然科学基金资助项目(2017JJ4024);湖南省重点实验室(2016TP1018) |
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| 摘 要： | 光伏发电的效益限制了其大规模发展。为提高光伏发电效益,通过分析光伏电池的数学模型和优化MPPT控制策略,提出一种基于遗传算法的光伏MPPT变加速扰动法。比较变步长与变加速扰动法的差异,通过数学表达式证明了变加速扰动法的加速过程。为进一步提高跟踪精度,减少系统的跟踪时间,引入遗传算法用于建立初始搜索区间。最后,在Matlab/Simulink软件平台搭建仿真模型,仿真结果表明,该方法在外界光强及温度发生变化时可以实现MPP的快速、稳定跟踪。
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| 关 键 词： | 光伏系统 MPPT 遗传算法 变加速扰动 |
| 收稿时间： | 2017/5/27 0:00:00 |
| 修稿时间： | 2017/6/30 0:00:00 |
Research on MPPT of photovoltaic system by variable acceleration disturbance method based on Genetic Algorithm |
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| lishengqing,wuwenfeng,zhangyuwen and mingyao.Research on MPPT of photovoltaic system by variable acceleration disturbance method based on Genetic Algorithm[J].Electrical Measurement & Instrumentation,2018,55(8):7-11. |
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| Authors: | lishengqing wuwenfeng zhangyuwen and mingyao |
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| Affiliation: | Hunan University of Technology College,Hunan University of Technology College,Hunan University of Technology College,Hunan University of Technology College |
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| Abstract: | The benefits of PV have limited its large-scale development. In order to improve the efficiency of photovoltaic power generation, an PV MPPT accelerating perturbation method based on genetic algorithm is proposed .The difference between the variable step and the accelerating perturbation method is compared, and the acceleration process of the variable perturbation method is verified by the mathematical formula. To further improve the tracking accuracy and reduce the tracking time of the system, the genetic algorithm is used to establish the initial search range. Finally, the simulation model is built in Matlab/ Simulink software platform, and the correctness of the method is verified by simulation. |
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