建立BP神经网络负荷预测模型，并对BP神经网络的节点（输入层、中间层、输出层）进行选择,并选用合适的小波神经网络的训练函数,提高收敛速度和负荷预测精度。-The establishment of BP neural network load forecasting model, and the BP neural network nodes (input layer, middle layer, output layer) to select and choose the appropriate wavelet neural network training function to improve the convergence speed and the load forecast accuracy.