NetPrograme

上海热线ii试验网接入部分方案(上海贝尔有限公司) 毕业设计内参(Shanghai Hotline ii pilot network access part of the program (Shanghai Bell Co. Ltd.) Graduation INCOMPATIBLE)

在电网电压频率波动或者三相不平衡的情况下,硬件锁相很难准确检测到基波正序的相位。在结合PWM整流器空间矢量解耦控制算法的基础上,将软件锁相环技术应用在PWM整流器控制系统中,并用仿真和实验验证了该方案的可行性。实验结果表明,该方案解决了电网电压频率波动及三相不平衡时的相位同步等问题,并在工程上具有一定参考价值。(Frequency or voltage fluctuations in three-phase unbalanced case, the hardware lock is difficult to accurately detect the fundamental positive sequence phase. In the space vector PWM rectifier with decoupling control algorithm based on the software used in the PWM rectifier PLL control system, and use simulation and experimental verification of the feasibility. Experimental results show that the solutions to address the voltage and frequency fluctuations of the phase unbalanced three-phase synchronization issues, and the project has a certain reference value.)

一些使用的混合储能文献，对初学者很有帮助。(The document of some practical hybrid energy storage)

Xiangjiaba - Shanghai ±800 kV UHVDC transmission project

说明：  基于agent 的入侵检测系统，希望对大家有用(Agent-based intrusion detection system, in the hope that useful to everybody)

( ) Eli M. Noam, Lorenzo Maria Pupillo, Johann J. Kranz (auth.), Eli M. Noam, Lorenzo Maria Pupillo, Johann J. Kranz (eds.)-Broadband Networks, Smart Grids and Climate Change-Springer New York

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. )

硕士论文研究有关转子轴承系统时，学习参考用 的小程序。主要研究振动特性(Master s thesis research on rotor bearing system, reference for the study of the small program. Study on vibration characteristics of the main)

压缩机电机绕阻温度计算，包括铜线，铝线,参数包括环境温度，冷态阻值，热态阻值，计算热态绕阻温度(winding temperature)

Camera GC0329 0.3M FPC EFL=1.82mm