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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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KLPromoter
KL距离的一种分类方法，此程序是分类启动子的类别，用MATLAB实现。(KLdistance with MATLAB.)
- 2015-07-20 12:05:39下载
- 积分：1
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pwm_rectifier_test
电力电子变流器，PWM整流器的仿真文件，简单有效，供参考(Power electronic converter, PWM rectifier simulation files, simple and effective, for reference)
- 2016-07-01 21:30:22下载
- 积分：1
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EngineeringMatlabProgramming
本书提供了工程中常见问题的解决方法及仿真过程，适合工科师生仿真参考教程。(The book provides engineering solutions to common problems and simulation process, suitable for engineering students and teachers information and guidance simulation.)
- 2009-01-10 16:56:34下载
- 积分：1
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MatLAb_APlication
Matlab application, movement of planets
- 2010-08-21 22:47:55下载
- 积分：1
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pro_1
有一个3阶对象，要求使用继电自整定方法对其实施自适应PID控制。
要求：
1、选择采样时间0.1s，把对象离散化。
2、加继电（开关）控制，测量对象的Tc,Kc。
3、利用ZIEGLER-NICHOLS 公式表，确定PID参数。
4、实现闭环控制。
5、根据调节效果，修正PID参数。
(A 3-order object, requires the use of relay self-tuning PID control methods on the implementation of adaptive. Requirements: 1, select the sampling time 0.1s, the discrete objects. 2, plus relay (switch) control, measurement object Tc, Kc. 3, using ZIEGLER-NICHOLS formula table, determine the PID parameters. 4, closed loop. 5, according to moderating effect, the amendment PID parameters.)
- 2010-09-03 14:24:46下载
- 积分：1
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YCgCr_detect
基于YCgcr肤色空间的自适应阈值分割的算法，本人根据论文《YCgCr颜色空间的肤色聚类人脸检测法》原创(YCgcr color space based adaptive thresholding algorithm, I am under the thesis " YCgCr color clustering color space face detection method" original)
- 2011-05-21 16:21:12下载
- 积分：1
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project1
kalman滤波的程序及ppt，很有价值，我们做的大作业，欢迎分享(kalman filtering procedures and ppt, great value, we do great work, please share)
- 2009-05-03 09:26:03下载
- 积分：1
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LBP
基于LBP的图像特征提取算法,检索效果大家可是自己实现试试，这种算法还是比较有优势的，但还需要很多改进(image retrieval algorithm based on LBP)
- 2012-05-01 07:28:34下载
- 积分：1
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ctpIF1005(20100419)
CtpIF1005 (20100419)期货数据2010年4月16日(CtpIF1005 (20100419) futures data for April 16, 2010
)
- 2014-12-28 00:22:24下载
- 积分：1
