VSG2121

电力系统直流潮流算法，利用matlab软件实现的直流潮流算法。(Calculation of DC power flow in power system)

30节点系统最优潮流计算，自编程序，可供最优潮流计算研究初学者提供系统分析；(30 node system optimal power flow calculation, self compiled procedures for optimal power flow calculation, beginners to provide system analysis;)

电力系统潮流计算,潮流计算是根据给定的电网结构、参数和发电机、负荷等元件的运行条件，确定电力系统各部分稳态运行状态参数的计算。(power flow calculation)

说明：  这是一个PSCAD4.2.1的火电机组模型，容量是660MW。(This is a PSCAD 4.2.1 thermal power unit model with a capacity of 660MW.)

说明：  基于瞬时无功功率理论、滞环电流控制的三相电力有源滤波器Matlab仿真模型(The model of APF is established by the Power System of Matlab.The calculation of harmonic current based on three-phase instantaneous reactive power theory and hysteresis current tracking control strategy are analyzed.)

这是一个变速变桨距控制的9MW风力发电并网系统（DFIG），先运行.m文件，设定Ts=5e-6s。亲测有效(This is a variable speed pitch control 9MW wind power generation grid connected system (DFIG). First, run the.M file and set Ts=5e-6s. Pro test effectiveness)

matlab 下 sumulik对风力发电并网模型 (matlab under sumulik of wind power grid model)

可用于如单相接地故障的仿真研究，观察考虑电弧影响的波形(It can be used in the simulation research of single-phase grounding fault, and observe the influence of arc)

Digsilent user manual 15.1

说明：  MMC简化仿真模型,单端换流阀，采用PSCAD搭建了简化的MMC电路模型，用于研究MMC工作原理。(MMC simplified simulation model, single-end converter valve, using PSCAD to build a simplified MMC circuit model, used to study the working principle of MMC.)