2009年各类数学建模论文集

说明：  这是 mt4ea源码，用于智能交易，全自动交易，外汇有风险，谨慎操作，建议模拟盘练习。(Mt4ea source code, for intelligent trading, automatic trading, foreign exchange risk, cautious operation, it is recommended to simulate disc exercise.)

本文综述了风力发电机组的电气控制。在介绍风力涡轮机特性的基础上介绍了双馈异步发电系统和永磁同步全馈发电系统，具体介绍了双馈异步发电系统的运行过程，最后简单介绍了风力发电系统的一些辅助控制系统。-This paper reviews the wind turbine electrical control. In introducing the characteristics of wind turbines based on the introduction of the doubly-fed induction and permanent magnet synchronous generating system-wide power-fed systems, the specific introduction of the double-fed asynchronous operation of the process of power generation systems, and finally a brief account of the wind power system ancillary control system .

利用数字体图像相关法计算变形前后物体内部三维位移场(Three dimensional displacement field in the object before and after deformation using the Digital Volume Correlation method)

说明：  Programas na linguagem C

牛顿－拉夫逊法潮流计算 基本步骤： 　　（1）形成节点导纳矩阵 　　（2）将各节点电压设初值U， 　　（3）将节点初值代入相关求式，求出修正方程式的常数项向量 　　（4）将节点电压初值代入求式，求出雅可比矩阵元素 　　（5）求解修正方程，求修正向量 　　（6）求取节点电压的新值 　　（7）检查是否收敛，如不收敛，则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代，否则转入下一步 　　（8）计算支路功率分布，PV节点无功功率和平衡节点柱入功率。-Newton-Raphson method flow calculation basic steps : (1) formation of nodal admittance matrix (2) to set up the initial node voltage U, (3) the initial node-generation-related demand. calculated that the constant term formula Vector (4) nodes will be incorporated into the initial voltage-seeking, calculated Jacobian matrix elements (5) solving that equation, seek to amend the vector (6) to strike a new node voltage value (7) to check whether convergence, if not restrained. concentrated in the nodes of the new voltage as the initial value since the first three steps to re-start the narrow iterations. Otherwise, turn into the next (8) Calculation branch power distribution, PV nodes reactive power and balance-node into powe

判断两条线是否相交的程序，这并不是我原创的，但是我忘记是从哪里下载的了，只能对原创的说，对不起了，谢谢你的代码

New LCD Library for Proteus

宣读了一份tlc549 ADC的参考vcc使用软件SPI和存储8位数字代码在adcdata 。该tlc549采样，在一个连续循环。如果adcdata > 0.5 * vcc ， p1.0设置，否则复位。aclk为N /甲mclk = smclk =预设会计处〜 800k vcc必须至少为3V为tlc549 -Read a tlc549 ADC reference vcc using software SPI and 8-digit code stored in the adcdata. The TLC549 sampling, in a continuous cycle. If adcdata

CRT需要添加很多设备时，正常要一个一个添加，这个工具可以用一个为模板(When CRT needs to add many devices, it is normal to add one by one. This tool can be used as a template.)

开关电源实用技术——设计与应用（第二版）嵌入式，电路开发参考书，内容丰富，有很好的参考价值(Switching power supply practical techniques- Design and Applications (Second Edition) embedded circuit development reference books, content-rich, good value)