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基于无迹卡尔曼滤波神经网络的光伏发电预测
引用本文:李春来,张海宁,杨立滨,杨军,王平.基于无迹卡尔曼滤波神经网络的光伏发电预测[J].保鲜与加工,2017(4):54-61.
作者姓名:李春来  张海宁  杨立滨  杨军  王平
作者单位:国网青海省电力公司电力科学研究院(青海省光伏发电并网技术重点实验室), 西宁 810008,国网青海省电力公司电力科学研究院(青海省光伏发电并网技术重点实验室), 西宁 810008,国网青海省电力公司电力科学研究院(青海省光伏发电并网技术重点实验室), 西宁 810008,国网青海省电力公司电力科学研究院(青海省光伏发电并网技术重点实验室), 西宁 810008,重庆大学 输配电装备及系统安全与新技术国家重点实验室, 重庆 400044
基金项目:青海省光伏发电并网技术重点实验室项目(2014-Z-Y34A)。
摘    要:针对光伏发电系统在不同天气状况下发电功率预测精度不高的问题,在分析传统方法的基础上,提出一种无迹卡尔曼滤波神经网络光伏发电预测方法。该方法利用无迹卡尔曼滤波实时更新神经网络模型的权重,以直流电压和电流作为系统的输入,以有功功率和无功功率作为系统的输出,分别建立两个独立的双输入单输出功率预测模型。实验结果表明:所提出的方法对有功功率和无功功率的预测精度分别为97.3%和94.2%,并且对天气具有良好的鲁棒性。

关 键 词:光伏发电预测  无迹卡尔曼滤波  神经网路  最佳拟合度
收稿时间:2016/11/1 0:00:00

Photovoltaic power forecasting based on unscented Kalman filtering neural network
LI Chunlai,ZHANG Haining,YANG Libin,YANG Jun and WANG Ping.Photovoltaic power forecasting based on unscented Kalman filtering neural network[J].Storage & Process,2017(4):54-61.
Authors:LI Chunlai  ZHANG Haining  YANG Libin  YANG Jun and WANG Ping
Institution:Qinghai Electric Power Research Institute (Qinghai Province Key Laboratory of Photovoltaic Grid Connected Power Generation Technology), Xining 810008, P. R. China,Qinghai Electric Power Research Institute (Qinghai Province Key Laboratory of Photovoltaic Grid Connected Power Generation Technology), Xining 810008, P. R. China,Qinghai Electric Power Research Institute (Qinghai Province Key Laboratory of Photovoltaic Grid Connected Power Generation Technology), Xining 810008, P. R. China,Qinghai Electric Power Research Institute (Qinghai Province Key Laboratory of Photovoltaic Grid Connected Power Generation Technology), Xining 810008, P. R. China and State Key Laboratory of Power Transmission Equipment & System Security, Chongqing University, Chongqing 400044, P. R. China
Abstract:As the existing photovoltaic power prediction methods have low robustness under different weather conditions, we proposed a new method for the prediction of photovoltaic power system based on the unscented Kalman filtering (UKF) neural network. The method uses the unscented Kalman filter to update the weight of the neural network model in real time, and establishes two independent dual-input-single-output models with taking DC voltage and current as input and active power and reactive power as output. The experimental results indicate that the proposed UKF neural network model can accurately forecast the photovoltaic power, the best fit of active and reactive power are 97.3% and 94.2% respectively, and the method is robust to weather conditions.
Keywords:photovoltaic power forecasting  unscented Kalman filter  neural network  optimal degree of fitting
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