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SpeedRegulationSystemResearchofMiningElectricLocom
矿用电机车电控系统有两种,一种是有触点的电控系统,另一种是脉冲调速系统。以晶闸管为主要元件的脉冲调速系统在矿用电机车中仍大量使用。晶闸管属于半控型器件,其控制极只能控制开通而不能控制其关断,在低速运行时,晶闸管一经导通后,如果不能根据需要关断,则电动机承受全部电压而失去控制,电机车全速运行。本文利用MATLAB软件对矿用电机车晶闸管脉冲调速系统的主电路进行建模并仿真,对影响安全运行的关键元器件进行了详细的分析。仿真结果表明晶闸管脉冲调速系统存在安全隐患。随着电子工业的飞速发展,一种新型的全控型电力器件(绝缘门极晶体管IGBT)开始在工业中得到广泛的应用,脉冲调速电控系统如采用全控型电力器件代替半控型元器件(晶闸管),将会大大简化控制电路。由于控制电路简单,便于实现数字化控制。本文对IGBT的调速原理进行分析,采用IGBT和集成PWM脉宽调制器SG3525为主要元件,设计出了双闭环可逆自动调速系统,并对该系统进行实验验证,实验结果表明该系统优于晶闸管直流调速系统,而且运行稳定,可以很方便实现可逆运行。(Mine electric locomotive electronic control system has two types of electronic control system with contacts, and the other is the pulse speed control system. The pulse thyristor as the main component in the mining electric locomotive speed control system is still widely used. A semi-controlled thyristor type devices, the control can only control a very open and can not control the turn-off, in the low speed, the thyristor turn-on once, if not turned off as needed, then the loss of the motor under full voltage control, motor vehicle running at full speed. In this paper, MATLAB software mining electric locomotive speed control system pulse thyristor main circuit modeling and simulation, the key components of the safe operation of a detailed analysis. Simulation results show that the thyristor pulse control system security weaknesses. With the rapid development of the electronics industry, a new full-controlled power devices (Insulated Gate Transistor IGBT) began to be widely used in indu)
- 2010-12-24 13:40:45下载
- 积分:1
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Pchap10_11sI
机器人的PID控制之确定性单臂机械手的PD+前馈控制(先进进PID控制MATLAB仿真第二版),已通过测试。
(PID control of robot uncertainty arm manipulator PD+ before feed-forward control (Advanced PID Control MATLAB simulation), has been tested.)
- 2012-07-19 20:56:26下载
- 积分:1
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SVPWM2
空间电压矢量调制法,里面都是调试好的模型!应该会对大家有帮助(Space Vector Pulse Width Modulation)
- 2015-03-16 10:27:13下载
- 积分:1
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FIRfilter
说明: 1窄带数字滤波器的设计原理数字滤波器从实现方法上,可分为两种:一种是由有限长冲激响应所表示的数字滤波器,称为FIR滤波器
文献来源
(fir filters with frequency)
- 2010-03-29 09:37:09下载
- 积分:1
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RSA
this is coding of dwt in matlab
- 2011-10-14 02:55:59下载
- 积分:1
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wls
实现加权最小二乘拟合,经典的系统辨识方法,很管用(Achieve a weighted least-squares fitting, classical system identification methods, it is useful)
- 2014-02-28 10:02:20下载
- 积分:1
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jixieshebeifeipingwenx
我下的一本关于机械故障诊断的电子书,对初学者入门比较好(I was under a mechanical fault diagnosis on the books, started better for beginners)
- 2011-09-16 07:30:03下载
- 积分:1
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hrrp
简单的使用*.ffe文件返回值计算一维距离像的小程序(Simple to use* .ffe file returns the value calculated the one-dimensional image of the applet)
- 2021-04-20 10:38:50下载
- 积分:1
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控制器优化设计
说明: 对简单闭环系统的PID控制参数进行优化,得到最佳的控制效果。使用时将该文件夹设为matlab默认文件夹,用simulink打开.mdl文件,在命令行窗口输入.txt文档中命令,可以得到优化后的P、I和D参数。(The PID control parameters of the simple closed-loop system are optimized to obtain the best control effect. With using these codes, the folder must be set as the default folder of matlab, then open the. MDL file, and input the commands of . TXT document in the command line window. The optimized P, I and D parameters will be obtained.)
- 2019-03-22 17:22:38下载
- 积分:1
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music_evzero
此程序是在假设已知波达角的情况下进行仿真验证的实验,零陷music波速成形。(This procedure is known in the hypothetical case of DOA conducted simulation experiments, velocity forming nulls music.)
- 2013-11-15 09:22:54下载
- 积分:1