Strategic

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)

feedback and control systems

非常有用的GPU计算工具gpumat的教材，可以在matlab调用gpu命令(GPU computing very useful tool gpumat materials, you can call the gpu command in matlab)

通过matlab获取财经网站的新闻信息，滤去了网站的广告，里面有四个网站，涵盖网站中所有资讯，可以直接在命令窗口看到新闻资讯。(By matlab to obtain financial website news information, filter went to the website of advertisement, there are four sites, covering all information on the website, you can directly see news and information in command window.)

数字信号处理，离散时间系统的相位、结构与状态变量描述典型题，能更好的理解离散时间系统(Digital signal processing, discrete-time systems the phase, structure and state-variable description of a typical question, can a better understanding of discrete-time systems)

matlap for the function

这本书是清华大学出版社出版，孙兆林编写的，书中主要讲述了matlab中的图像处理编程方面的知识要点及方法(This book is published by Tsinghua University Press, Zhao-Lin Sun prepared the book the main story of the image processing matlab programming knowledge and methodology of the main points)

时频分析工具箱，希望对大家有用，如果需要文件的说明，请留下联系方式(Time-frequency analysis toolbox, we hope to be useful, if you need the file, please leave a contact)

说明：  三端稳压可调集成芯片．应用很广，可当制作各种类型的稳压源(Three-terminal adjustable regulator ICs. Application is very broad, can be produced when the source of all types of regulators)

《精通matlab最优化计算》中的源程序。可用于解决无约束一维极值问题( one dimensional optimization problem)