PSCAD-Files.

用PSCAD搭建的微电网模型 可用来进行微电网，可借此模型分析微电网电压闪变与波动、频率偏差以及谐波等电能质量问题 (Built using PSCAD microgrid model can be used for micro-grid, you can take this model and micro-grid voltage flicker fluctuations, harmonics, frequency deviation and power quality problems)

说明：  经验正交算法，和大家一起分享魏凤英老师编写的eof程序，改程序已经过检验确实有效(EOF University Corporation for Atmospheric Research NCAR Command Language Version 6.2.1 The use of this software is governed by a License Agreement)

说明：  Fortran扭曲碳管等二维材料，高质量的分子动力学建模学习入门，很有用的短期提升。(High quality molecular dynamics modeling learning introduction, very useful for short-term promotion.)

开关电源环路设计之基于MATHCAD的buck电路的设计(Switching power supply loop design based on the buck circuit design MATHCAD)

声波，2维，逆时偏移程序.由于实现2维声波逆时偏移。包含参数卡文件，主程序以及Makfile文件。(reverse time migration for 2D acoustic wave. include parameter file ,main program and Makefile)

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):

关于Fortran语言中Random_Seed()函数讲解(Explanation of Random_Seed() Function in Fortran Language)

二维Couette流动是一个不可压缩黏性流动的典型流动，并有解析解，可以用来检验数值算法计算精度和可靠性。对它采用有限体积算法一阶迎风型离散格式进行数值求解。同时，为了初学者入门和练习方便,这里给出了用Fortran77语言编写的计算二维不可压缩黏性流体Couette流动问题计算程序，供大家学习参考。——计算流体力学教程(Couette flow of two-dimensional incompressible viscous flow is a typical flow, and analytical solutions, numerical algorithm can be used to test the accuracy and reliability. It uses the first order upwind finite volume method for numerical solution of discrete format. Meanwhile, for beginner and practice convenience, here are written using Fortran77 calculated two-dimensional incompressible viscous fluid Couette flow problem computer program, for everybody to learn reference.- Computational Fluid Dynamics Course)

说明：  BL湍流模型源程序，可用来参考编写自己的CFD程序。(code of BL turbulent model, used write your own cfd code)

随机PSO算法，一种优化后的微粒群算法，收敛速度更快，寻优能力更强。(Random PSO algorithm)