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本文首先分析了永磁同步电机矢量控制的发展概况，然后从机电能量转换的角度出发，解释三相永磁同步电机的机电能量转换原理，推导拉格朗日运动方程。此外，列写出永磁同步电机在三相静止坐标系和dq坐标系下的数学模型。基于Simulink建立了转速电流双闭环矢量控制系统的仿真模型，通过对仿真结果分析，验证了永磁同步电机矢量控制系统性能的优越性。(This paper first analyzes the development of permanent magnet synchronous motor vector control, and then explains the electromechanical energy conversion principle of three-phase permanent magnet synchronous motor from the perspective of electromechanical energy conversion, and deduce the Lagrange motion equation. In addition, the mathematical model of permanent magnet synchronous motor (PMSM) in three phase stationary coordinate system and dq coordinate system is listed. Based on Simulink, a simulation model of speed and current double closed loop vector control system is established. By analyzing the simulation results, the performance of PMSM vector control system is verified.)

风电机组电压波动与闪变的发射强度与传播规律simulink仿真(The voltage fluctuation of wind power unit and the emission intensity and propagation rule simulink simulation.)

说明：  该程序是大型有限元ADINA的源程序代码(This program is the source code of large finite element ADINA.)

非平稳信号分析与处理,可用于特征提取，将AR模型扩展应用于非平稳时间序列，得到具有时变系数的时变自回归(time-varying autoregressive, TVAR)模型。(nonstationary random signal analysis and processing)

机器人MATLAB m语言，实现关节机器人的运动学正解运算。算(Robot MATLAB M language, realize kinematic joint robot forward kinematics, inverse operation.)

说明：  运用卡尔曼滤波器，在已有条件下，用matlab软件得到与已知的飞行器轨迹相同的预测轨迹(Kalman filter is used to predict the flight path of the aircraft)

说明：  ansys fluent udf 定义空气物性(Definiting air physical properties by UDF)

说明：  umat基础知识教学，适合刚接触UMAT的新手做参考(UMAT basic knowledge teaching, suitable for beginners)

频率分集阵列发射波束图仿真，发射波束具有距离-角度耦合性，发射波束图最大值周期性出现，周期等于c/Deltaf。另外，提供了仿真所用的参考文献。(Transmit beamforming of frequency diverse array is range-angle dependent and its maximam is periodic occurrence. the period is equal to c/Deltaf. besides, the references are provided.)

用于绘制电机效率等高线图的程序，横坐标的转速，纵坐标转矩(A program for drawing contour diagrams of motor efficiency,the speed of the abscissa and the torque of the ordinate.)