ID 原文 译文
52957 针对风向的随机性和不确定性的特点，提出一种变分模态分解(VMD)和蝙蝠算法(B A)优化长短期记忆(LSTM)神经网络的短期风向预测模型。 According to the randomness and uncertainty of wind direction, a short-term wind direction prediction model is proposed based on variational mode decomposition(VMD) and bat algorithm(BA) optimized long short term memory(LSTM).
52958 首先，采用变分模态分解将原始序列分解为多个有限带宽的特征模态分量以降低原始数据的复杂度和非平稳性对预测精度的影响， Firstly, the original sequence is decomposed into multiple finite-band eigen-mode modal components by using VMD to reduce the influence of the complexity and non-stationarity of the original data on the prediction accuracy.
52959 然后将各分量分别建立B A-LSTM模型进行预测， Then the BA-LSTM model for each component is established to predict separately,
52960 最后将各分量预测结果叠加得到风向值， and finally the wind direction values are obtained by superimposing the prediction results of each component.
52961 结合河北某风场的实测数据进行多时间尺度的风向预测。 The multi-time-scale wind direction prediction is carried out based on the measured data of a wind field in Hebei Province.
52962 实验结果表明，本文所提方法相比于LSTM和最小二乘支持向量机(LSSVM)预测方法提高了预测精度，对后续研究偏航系统的最优调节提供了支持。 Experimental results show that the proposed method improves the prediction accuracy compared with the LSTM and least square support vector machine(LSSVM) prediction methods, which provides support for the subsequent research on the optimal adjustment of the yaw system.
52963 基于直线电机车辆的基本结构及工作原理，利用拉格朗日-麦克斯韦方程，从机械与电磁能量层面进行了直线电机车辆系统机电动力学模型的构建。 Based on the basic structure and working principle of linear motor vehicle, the electromechanical dynamics model of linear motor vehicle system is constructed from the mechanical and electromagnetic energy level by using the Lagrange-Maxwell equation.
52964 分析了车辆系统机械部件及电磁部分的相互作用规律，并推导了相关微分方程。 The interaction rule of mechanical components and electromagnetic parts of vehicle system is analyzed, and the related differential equations are derived.
52965 根据Clark变换，将所得的三相坐标系模型简化为两相坐标系模型。 According to the Clark transform, the obtained three phase coordinate system model is simplified to two phase coordinate system model.
52966 应用Matlab求解及仿真，得到相关参数的变化规律。 The change rules of the relevant parameters are obtained by Matlab solving and simulating.