1 Introduction
China has enforced a new gasoline standard starting 2003 to limit the olefins, aromatics and benzene contents in gasoline.The isomerate is the cleanest gasoline component because it does not contain the...1 Introduction
China has enforced a new gasoline standard starting 2003 to limit the olefins, aromatics and benzene contents in gasoline.The isomerate is the cleanest gasoline component because it does not contain the above-mentioned components, and is also an excellent gasoline blending component because of its higher RON and MON ratings.展开更多
为准确地预测光伏发电功率,节约资源,提出一种基于改进非线性自回归(nonlinear autoregressive with external input,NARX)神经网络算法的光伏发电功率短期预测模型。通过皮尔森相关分析选择影响发电功率的环境因素,利用遗传算法(GA)优...为准确地预测光伏发电功率,节约资源,提出一种基于改进非线性自回归(nonlinear autoregressive with external input,NARX)神经网络算法的光伏发电功率短期预测模型。通过皮尔森相关分析选择影响发电功率的环境因素,利用遗传算法(GA)优化受限玻耳兹曼机(RBM)模型参数,避免陷入局部最优;利用优化后的RBM模型初始化NARX神经网络的参数。实例预测表明,改进NARX神经网络算法对光伏发电功率短期预测精度更高,收敛速度更快。展开更多
文摘1 Introduction
China has enforced a new gasoline standard starting 2003 to limit the olefins, aromatics and benzene contents in gasoline.The isomerate is the cleanest gasoline component because it does not contain the above-mentioned components, and is also an excellent gasoline blending component because of its higher RON and MON ratings.
文摘为准确地预测光伏发电功率,节约资源,提出一种基于改进非线性自回归(nonlinear autoregressive with external input,NARX)神经网络算法的光伏发电功率短期预测模型。通过皮尔森相关分析选择影响发电功率的环境因素,利用遗传算法(GA)优化受限玻耳兹曼机(RBM)模型参数,避免陷入局部最优;利用优化后的RBM模型初始化NARX神经网络的参数。实例预测表明,改进NARX神经网络算法对光伏发电功率短期预测精度更高,收敛速度更快。
