ZhenDong

说明：  这是一个关于数字交流电压表的设计方案，详细介绍了硬件及软件设计(This is a study on digital AC voltage meter design, detailed hardware and software design)

说明：  MIMO_OFDM系统中自适应调制技术的研究，希望对研究自适应的朋友能有作用(Adaptive modulation system MIMO_OFDM technology study in the hope that the study of adaptive friends to have the role of)

Eagle cadsoft library ADE7758 power meter i ade

JAVA企业人事管理系统的设计与实现 论文范文+毕业设计源代码+JAVA企业人事管理系统的设计与实现论文.doc(JAVA Enterprise Personnel Management System Design and Implementation)

为了给变频调速系统提供必要的设计参数，依据空间电压矢量脉宽调制（SVPWM）基本原理，介绍了 异步电动机及 SVPWM 算法在 Matlab/Simulink 环境下的建模过程及基于矢量控制理论的变频调速系统动态 模型建立。详细地阐述了实现仿真的方法，并针对仿真中的关键问题及系统的仿真结果进行了分析。仿真结 果表明，采用该控制系统，电压及转矩波动小，转速响应迅速，系统的各项指标都满足电机实际运行特性要 求。其仿真算法对于实现数字化控制变频调速系统具有一定的价值。 (To provide the necessary design parameters for the actual motor control system, the modeling course of voltage space vector pulse wide modulation（SVPWM）agrithmetic and AC motor under Matlab/Simulink environment are introduced. The dynamic model of variable frequency speed regulating system based on vector control is discussed according to the principle of SVPWM. The new method of realizing simulation, key problems and results of the simulation are analyzed in detail. The experimental simulation results show that this system has smaller fluctuations of voltage and torque, quicker response speed, and all of the indicators accord with the performance of the actual motor. The simulation agrithmetic have value to realize controlling motor with digital signal processing. )

24脉波整流和移相整流变压器网侧绕组匝数和电流的确定(24 pulse rectifier and phase rectifier transformer winding turns network side and the current determination)

In the TCP/IP protocol suite, TCP is the intermediate layer between IP below it, and an application above it. Using TCP, applications on networked hosts can establish reliable connections to one another. The protocol guarantees in-order delivery of data from the sender to the receiver Streams of data called segments are used by TCP peers to speak to each other. The segments can be quite large, so TCP breaks up the segments into smaller units of data. These units are encapsulated in the TCP packet that is passed to the IP protocol. Each unit of data is assigned a sequence number, which becomes part of the TCP packet. At the receiving end, the TCP module uses the sequence numbers in the packet to reconstruct the user data in the correct order.

通过软件建立微电网仿真模型，针对微电网从联网到孤岛的过渡过程、从孤岛到联网的过渡过程、微电网孤岛运行模式、以及当光伏电池受到光照强度和温度变化影响时的光伏发电的运行特性进行了仿真分析，仿真结果验证了控制策略的正确性和有效性。搭建了基于的两级式光伏发电系统实验平，光伏发电系统前级电路采用扰动观察法和限功率的扰动观察法分别实现了最大功率点跟踪控制和限功率控制，同时对光伏发电系统后级逆变器运行进行了实验研究。 (Simulation model of micro-grid )

信息管理系统!毕业设计全套!有论文,源代码!和心得,开题报告!(Information Management System! Graduation design a full set! Have papers, the source code! And experience, the title of the report!)

Battery Energy Storage System for Variable Speed Driven PMSG for Wind Energy Conversion System