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kunwen
物业管理系统完整毕业论文 非常好用 谁用谁知道(Property management system is very easy to use complete thesis with who knows who)
- 2011-06-27 10:20:29下载
- 积分：1
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基于Web的在线考试系统
太原理工大学硕 士 学 位 论 文 基于Web 的在线考试系统 Online Testing System Based on Web(Taiyuan University of Technology master's degree thesis Web-based online examination system Online Testing System Based on Web)
- 2005-04-14 11:44:33下载
- 积分：1
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ContentServer
矢量控制与直接转矩控制是当前主要的两种电机变频调速控制方法，已在两相交流感应电机中得到
了应用。分析了两相不对称电机矢量控制和直接转矩控制原理以及两相三桥臂逆变器的SVPWM实现方法；
运用Matlab的Simulink建立了两相不对称交流感应电机矢量控制和直接转矩控制调速系统的仿真模型，并
对两种控制系统进行了仿真研究，给出了仿真波形，进行了特性比较．
关键词：两相电机；矢量控制；直接转矩控制；SVPWM；MATLAB；仿真(Vector Control and Direct Torque Control is currently the main method of frequency control of two motors, has been in two-phase AC induction motor has been applied. Analysis of asymmetric two-phase motor vector control and direct torque control principle and two-phase SVPWM inverter arm Bridge Implementation the use of Matlab in Simulink to establish a two-phase AC induction motor asymmetry of vector control and direct torque control modulation speed of system simulation models, and the two control system was simulated, the simulation waveform characteristics were compared. Key words: two-phase motor vector control direct torque control SVPWM MATLAB Simulation)
- 2011-06-04 17:21:25下载
- 积分：1
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distributionnetworkconfiguration
说明： 电力方面配电网重构方面的资料，详细介绍了配电网重构的存在的问题，应用的方法，文章大多为硕博论文，比较详尽，是这方面学习的好资料(Electricity distribution network reconfiguration information, details of the distribution network reconfiguration problem, the application of the method, the article mostly papers, more detailed study in this regard the good information)
- 2010-03-30 09:55:06下载
- 积分：1
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based-on-SVPWMvectorcontrol
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.
)
- 2021-04-21 10:48:49下载
- 积分：1
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pwm
运用MATLAB的S函数来实现PWM控制器(Use MATLAB functions to achieve S-PWM Controller)
- 2008-07-31 10:58:04下载
- 积分：1
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FaultRecorderDesign
基于 ARM和 Linux嵌入式平台的
故障录波器通信接口设计(Abstract: To s olve some p r oblems of hardware configure, cost and reliability based on the traditi onalmicr ocomputer2 based fault re2
corder, a scheme for the fault recorderwhich takesARM and DSP as system hardware,L inux as system soft ware is p resented . DSP is
used for high2s peed data operati on, and the ARM p latform comp letes terminal contr ol and communicati on . Then a si mp lified structure
in s oft ware and hardware comes out . HP I technique is studied in detail in order t o meet the demand of contr ol and high2s peed data
communicati on bet ween the t wo kernels .)
- 2011-04-19 18:48:23下载
- 积分：1
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111
用GAL16V8设计可变长度序列信号发生器，在掌握伪随机序列性质的基础上，设计给定长度的伪随机序列信号发生器，也即设计给定n后（n为移位寄存器的级数）最长线性反馈移位寄存器序列。并在给定n产生的最长序列的基础上，截短出课题给出的序列长度，并用FM软件对可编程器件GAL16V8进行编程，以实现长度不同的序列信号发生器。(GAL16V8 design variable-length sequence signal generator based on the master pseudo-random sequence nature, the design of a given length pseudo-random sequence
Signal generator, designed for the series) up to linear feedback shift register sequences given n (n is the shift register. And given n
Sequence length given by the subject on the basis of the longest sequence, truncated, and FM software for programming the programmable device GAL16V8, in order to achieve
Different length of the sequence signal generator.)
- 2012-03-28 08:38:15下载
- 积分：1
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Droop_crt
微电网仿真分析，离网的下垂控制系统，实现离网的切换仿真，根据西南交大的一篇硕士论文仿真，可以运行的。(Microgrid simulation analysis, off-grid droop control system, the simulation is switched off grid, according to the Southwest Jiaotong University in a master s thesis simulation can be run.)
- 2014-05-08 10:38:52下载
- 积分：1
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ML5238-Ver1.0
5-16串电池管理方案，含原理图和芯片资料。具有电压测量、过充、过放、过流、均衡等功能。(5-16 string battery management solutions, including schematics and chip data. With voltage measurement, overcharge, over discharge, over current, balance and other functions.)
- 2020-12-14 18:09:14下载
- 积分：1
