基于simulink的并网逆变器PQ控制仿真(1)

能对投影仪进行代替人的检查操作，菜单遍历以及通道切换等操作(Projector can be replaced by human inspection operations, menu traversal and channel switching operations)

6. Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. Testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.

说明：  LS dyna 二次开发所用的学习资料。Fortran 语言(the fortran used for user define in LS dyna)

说明：  jQuery下拉单选多选城市选择代码是一框美化和下拉城市选择插件。(The jQuery drop-down radio multiple-choice city selection code is a box beautification and drop-down city selection plug-in.)

用于查找地图上涂层的单位图元的GIS软件，同时也包括其他地图操作-map used to locate the coating unit map yuan GIS software, but also includes other maps operation

手机版的俄罗斯方块程序 休闲内的手机游戏(mobile version of russia block game.which is leisure mobile game.)

说明：  woa this is a thing wow oh no

PID控制器 ，可进行自动控制，输出控制曲线，显示控制动态过程(PID controller, it can conduct automatic control, output control curve, indicating control of dynamic process)

LPC2138单片机控制蜂鸣器播放音乐， 蜂鸣器电路图(LPC2138 microcontroller control buzzer play music, Buzzer circuit)

发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.