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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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Ecodynamica
说明： 什么是Ecodynamica?
Ecodynamica是普通的工具和二维元胞自动机1(CAs)。(What is Ecodynamica? Ecodynamica ordinary tools and two-dimensional cellular automata 1 (CAs).)
- 2011-03-22 21:34:09下载
- 积分：1
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helloword
显示hello的matlab源代码
几句matlab的代码(Hello, matlab source code shows a few matlab code)
- 2011-04-20 21:37:09下载
- 积分：1
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496876399457457454534
粒子滤波技术在非线性、非高斯系统表现出来的优越性，决定了它的应用范围非常广泛。另外，粒子滤波器的多模态处理能力，也是它应用广泛有原因之一。国际上，粒子滤波已被应用于各个领域。在经济学领域，它被应用在经济数据预测；在军事领域已经被应用于雷达跟踪空中飞行物，空对空、空对地的被动式跟踪；在交通管制领域它被应用在对车或人视频监控；它还用于机器人的全局定位。
(Particle filter technology in the non-linear, non-Gaussian system demonstrated the superiority of the decision of its wide range of applications. In addition, the particle filter for multimodal capabilities, also has one of the reasons it is widely used. Internationally, the particle filter has been applied to various fields. In economics, it is applied to forecast economic data in the military field have been applied to radar tracking aerial flying objects, air to air, air-passive tracking in the field of traffic control it was used in the car or the person video monitoring also used the global positioning robot.)
- 2010-05-19 20:11:32下载
- 积分：1
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subbyteskey
add sub bytes through incrypting image
- 2011-10-16 20:26:09下载
- 积分：1
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chap2_11_RML
递归极大似然数估计，在实际通信系统仿真过程中非常有用(Recursion number of maximum likelihood estimate, in actual communication system simulation process is very useful )
- 2012-01-10 11:23:49下载
- 积分：1
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Applied
Applied Speech and Audio Processing-With Matlab Examples - Copy
- 2010-08-14 00:40:51下载
- 积分：1
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longgeketafa
利用龙格-库塔法求解了航天器深空返回再入运动动力学方程，并对返回再入运动进行了仿真分析。(Use of Runge- Kutta method to solve the deep-space spacecraft reentry return movement dynamics equations, and the return movement is simulated reentry.)
- 2015-03-30 11:28:47下载
- 积分：1
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Face_Recognition
it is a program to verify the persons depend on his own face
- 2010-07-23 02:17:44下载
- 积分：1
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ECG_Viewer_v1.2.1
matlab Monitor medical procedures, can display ECG, blood pressure, breathing and other data.
- 2010-12-22 17:18:45下载
- 积分：1
