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基于FOA-Elman神经网络的光伏发电功率预测模型

来源:电工电气发布时间:2019-12-19 10:19浏览次数:537
基于FOA-Elman神经网络的光伏发电功率预测模型
 
李芸,李萍,麻利新
(宁夏大学 物理与电子电气工程学院,宁夏 银川 750021)
 
    摘 要:光伏发电功率对光伏发电的可靠性起着决定性作用。针对Elman神经网络收敛速度慢、训练时间较长的问题,利用果蝇算法(FOA)来优化Elman神经网络的权值和阈值,从而提高运行效率。建立了基于FOA-Elman神经网络的光伏发电功率预测模型,并给出了算法设计及编码方案。仿真实验结果表明,FOA-Elman模型预测精度比传统Elman神经网络模型预测精度高,更适合于光伏发电功率预测。
    关键词:光伏发电;功率预测;果蝇算法;Elman 神经网络;预测精度
    中图分类号:TM615     文献标识码:A     文章编号:1007-3175(2019)12-0001-04
 
Prediction Model of Photovoltaic Power Generation Based on FOA-Elman Neural Network
 
LI Yun, LI Ping, MA Li-xin
(School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China)
 
    Abstract: The photovoltaic power generation plays an important role in the reliability of photovoltaic power system.Aiming at the slow convergence speed and long training time of Elman neural network, this paper used the fruit fly optimization algorithm (FOA) to optimize the weights and thresholds of Elman neural network to improve the operation efficiency. A photovoltaic power prediction model based on FOAElman neural network was established, and the algorithm, design and coding scheme were given. The simulation results show that the prediction accuracy of FOA-Elman model is higher than that of traditional Elman neural network model, more suitable for the photovoltaic power prediction.
    Key words: photovoltaic power generation; power prediction; fruit fly optimization algorithm; Elman neural network; prediction accuracy
 
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