PV_WIND

Dpll source core ,it is very good for some one-Dpll source core,it is very good for some one

说明：  matlab画传输线上电压分布曲线图：传输线特性阻抗Z0=50，求线上电压分布，并画出与z 的关系曲线（用matlab 划出曲线图）。(Matlab draws the curve of voltage distribution on transmission line: the characteristic impedance of transmission line Z0 = 50, calculates the voltage distribution on transmission line, and draws the curve of relationship with Z (draws the curve with matlab).)

sample application to test

轴承故障仿真信号时域波形图和轴承故障仿真信号幅度谱图的MATLAB程序(Bearing fault simulation signal time domain waveform and amplitude spectrum)

属于数学建模课件。对初学者了解数学有一定的帮助。(Belongs to mathematical modeling courseware. For beginners, there is a certain understanding of math help.)

说明：  STM8S103F3P6核心板 + RC522模块 调试正常(STM8S103F3P6 Core Board + RC522 Module Debugging Normal)

Flash仿Vista导航菜单源文件，flash结合XML文件，也能制作出这款十分逼真的Flash菜单，鼠标放上去，菜单渐变出现，看上去漂亮极了。

d-link 交换机DES-1228资料-d-link Switch DES-1228 data

mYahtzee version 0.82益智类游戏-mYahtzee version 0.82 Puzzle Games

说明：  微电网保护问题与传统配电网保护有着极大的不同，典型表现在以下几个方面：a.微电网在并网运行和孤岛运行两种运行方式下，短路电流大小不同且差异很大。b.微电网中电源及相关负荷的接地方式对故障电流的大小影响也很大。c.加入分布式能源后，微电网的双向潮流特性对微电网保护的方向判别也有新的要求。d.发生故障时，微电网与配电网的不同隔离策略需要与微电网保护相结合，这也是微电网保护的关键。(The problem of microgrid protection is very different from that of traditional distribution network protection. Typical manifestations are as follows: a. The short-circuit current of microgrid varies greatly under the two operation modes of grid-connected operation and island operation. B. The grounding mode of power supply and related loads in microgrid also has a great influence on the magnitude of fault current. C. With the addition of distributed energy, the bidirectional power flow characteristics of microgrid also have new requirements for the direction discrimination of microgrid protection. D. When a fault occurs, different isolation strategies of microgrid and distribution network need to be combined with microgrid protection, which is also the key of microgrid protection.)