二维喷管的设计

说明：  很常见的共振解调程序，用于判断滚动轴承故障，附带一组数据(Classical resonance demodulation)

说明：  利用MATLAB/Simulink搭建的三电平逆变器仿真电路，利用模型预测控制方法进行控制，可以实现中点点位平衡，对研究模型预测控制有一定学习作用。(The simulation circuit of three-level inverter built by MATLAB/Simulink and the control by model predictive control method can realize the balance of mid-point and point, which has a certain learning effect on the study of model predictive control.)

风机模态参数识别，主要是风机急停工况下阻尼、自振频率等识别(The identification of the modal parameters of the wind turbine and is mainly the identification of the damping and vibration frequency of the wind turbine under the emergency shutdown condition.)

计算三相四线制电压负序不平衡度，零序不平衡度，(three-phase voltage unbalance factor)

说明：  自编牛拉法算电力系统潮流的matlab小程序，可以运行，有简单的中文注释。5节点系统，包括求节点导纳矩阵，求雅可比矩阵等系列过程。(The matlab program for calculating the power flow of power system based on the niula method is compiled by ourselves, which can be run and has simple Chinese notes. 5-node system, including the node admittance matrix, Jacobian matrix and other processes.)

abaqus建立三维椭球模型，主要用于有限元细观力学分析，建立几何模型(Abaqus establishes 3d ellipsoid model, which is mainly used for finite element mesomechanical analysis and geometric model establishment)

说明：  启航电动自行车控制器软件,已经量产。用于替换晶汇控制器。(BLDC controller for elec-bike)

说明：  根据卫星坐标和接收站坐标来计算卫星高度角的一段程序，简单实用(A program for calculating satellite altitude angle based on satellite coordinates and receiving station coordinates is simple and practical.)

离散点生成等高线的程序，基于方格网数字地形模型(Discrete points of the program to generate contour lines, grid-based DTM)

The base-case HVDC Benchmark CIGRE, implemented on PSCAD software.