wils

单相逆变并网电路的主电路与控制电路的 simulink 拓扑结构图， 主电路由直流源、 mosfet 全桥、 LC 无源滤波器、 负载 R1、 R2 组成， 其中 R1 为 恒定负载， R2 为仿真负载突变并入的。 控制电路为 SPWM 闭环调制， 通过检测输出端的电压有效值通过 PI 控制器反 馈回控制端使输出电压尽可能为一个优质的正弦波且有效值在 220V 左右， 频率 为 50Hz， 根据相关准则输出电压波形 THD 应在 5%以内。(The Simulink topology of the main circuit and the control circuit of the single-phase inverter grid connected circuit, The main circuit is composed of DC source, MOSFET full bridge, LC passive filter, load R1 and R2, wherein R1 is The constant load, R2, is incorporated into the simulation load mutation. The control circuit is SPWM closed loop modulation, and the effective value of the output voltage is detected through the PI controller The feed back control makes the output voltage as high as possible a sine wave, and the effective value is about 220V, frequency For 50Hz, the output voltage waveform THD shall be within 5%, according to the relevant guidelines.)

说明：  这是一个按键精灵脚本的插件程序,实现后台鼠标键盘操作(This a anjian jinglinng de program,This is a test program.)

《推荐系统实践》作者：项亮； 书籍全部章节配套源代码； 仅供学习分享，如有侵权立刻删除。(Author of Recommendation System Practice: Xiang Liang; All chapters of the book are accompanied by source code. For learning and sharing only. If there is any infringement, delete it immediately.)

雷达目标提取 杂波模型仿真 雷达改善因子计算(radar target detection, radar clutter simulation,radar SCR)

C# 在查询语句中使用格式化函数，格式化日期，将出生日期格式化为“年月日”的格式，后附完整源代码下载，以下是部分代码： 　　private void Frm_Main_Load(object sender, EventArgs e) 　　{ 　　 OleDbConnection con = new OleDbConnection(//创建数据库连接对象 　　 "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" 　　 + "db_Test.mdb" + ";Persist Security Info=False"); 　　 OleDbDataAdapter dap = new OleDbDataAdapter(//创建数据适配器对象 　　 "SELECT * FROM 员工生日表;", con); 　　 DataSet ds = new DataSet();//创建数据集 　　 dap.Fill(ds, "table");//填充数据表 　　 dgv_Message.DataSource = ds.Tables[0].DefaultView;//设置数据源 　　}

说明：  my program c++ learning process five

说明：  在电压不平衡时，进行锁相，与正负序分离，对负序分量进行处理，效果不太理想(When the voltage is unbalanced, phase-locked is carried out to separate the positive and negative sequence)

电视机彩条发生器，有文字，图案等多种选择模式-TV Color Bar Generator, with text, patterns and other selection mode

pdf文件通过python fitz 第三方库 转化成jpg或者png图片文件。(Pdf files are converted into JPG or PNG image files through Python Fitz third-party library.)

simenst plc FB58 autotune pid come from 300PLC library function ,SCL source code and C sourec code and PDF document