Buck_Boost

对MMC拓扑结构进行描述，方面研究模块化多电平拓扑结构人员学习(The MMC topology is described, and the modular multilevel topology is studied.)

GNNM(1,n)的代码。利用神经网络求取GM(1,N)的系数，预测效果良好(GNNM (1, n) code. The use of neural network to strike a GM (1, N) of the coefficients to predict good results)

说明：  可实现ieee30节点编号的优化，以及利用稀疏技术存储(It can optimize IEEE 30 node number and store it with sparse technology)

通过遗传算法，实现了对齿轮传动系统的优化(Through genetic algorithm, the optimization of gear transmission system is realized.)

实现了虚拟同步机的频率控制，可以完美运行(The frequency modulation of a virtual synchronizer is realized)

说明：  用PQ分解法实现潮流计算，程序已调试，打开即可用，学校课设必备(Realization of Power Flow Calculation by PQ Decomposition Method)

说明：  基于滑差频率偏移法SMS的电力系统孤岛检测Simulink接线图。(Simulink source code for Islanding Detection with Slip-mode frequency shift method)

该文件包含matlab和PSCAD的仿真模型。具体有光伏并网逆变器、直流有源滤波器、电能质量扰动发生器等等。(This file contains a simulation model of MATLAB and PSCAD. Specifically, photovoltaic grid connected inverter, DC active power filter, power quality disturbance generator and so on.)

说明：  三相光伏逆变器孤岛运行，亲测可用，毕设作业(Three phase photovoltaic inverter islanding operation, available)

基于PSCAD的网络建模，可以计算电能质量等物理量，供大家学习(Network modeling based on PSCAD can calculate physical quantities such as power quality for everyone to learn.)