登录
首页 » matlab » MATLAB

MATLAB

于 2020-07-08 发布 文件大小:9KB
0 256
下载积分: 1 下载次数: 91

代码说明:

  一、 牛顿-拉夫逊法概要 首先对一般的牛顿-拉夫逊法作一简单说明。已知一个变量X的函数 (4-6) 解此方程式时,由适当的近似值X(0)出发,根据 (4-7) 反复进行计算,当X(n)满足适当的收敛判定条件时就是(4-6)式的根。这样的方法就是所谓的牛顿-拉夫逊法。 式(4-7)就是取第n次近似解X(n)在曲线 上的点 处的切线与X轴的交点作下一次X(n+1)值的方法。参考图4-2(a)。在这一方法中为了能收敛于真解,初值X(0)的选取及函数f(X)必须满足适当的条件,如图4-2(b)所示的那种情况就不能收敛或收敛到别的根上去。 这一方法还可以做下面的解释,设第n次迭代得到的解与真值之差,即 的误差为 时,则 (4-8) 把 在 附近对 用泰勒级数展开 (4-9) 上式略去 以下的项 (4-10) 的误差可近似由上式计算出来 图4-2 (4-11) 比较式(4-7)和(4-11),可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。 用同样的方法考虑,给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2 sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability of the programme dramatically. The advantage is that , what we need to do is change the model expression. We can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2 lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique functions of Matlab in the optimization and calculation for power system. Key words :power system symbolic calculation optimal power flow interior point method)

文件列表:

新建 Microsoft Word 文档.doc,61952,2010-05-18

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • DigitalsignalprocessingbasedonMATLAB
    “基于MATLAB的系统分析与设计—信号处理”一书是一本极好的的书,对初学信号处理的非常值得一读。该书针对应用广泛的的号处理领域,简要介绍了信号处理的基本概念和基本方法,详细介绍了由MATLAB提供的信号处理工具箱函数的用法指南,最后以大量的应用示例,说明MATLAB进行信号处理系统分析与设计方法。( Based on MATLAB-Analysis and Design- Signal Processing, a book is an excellent book, for beginner signal processing is very worth reading. The book aimed at a wide range of applications to deal with the No. field, briefly introduced the basic concepts of signal processing and basic methods, detailed information provided by the MATLAB Signal Processing Toolbox function usage guide, and finally to a large number of application examples MATLAB signal dealing with system analysis and design methods.)
    2008-04-28 11:11:40下载
    积分:1
  • Report_OFDM
    A MATLAB-based implementation of an OFDM modem has been developed for use over an acoustic channel, modem. With full lists of coding. (A MATLAB-based implementation of an OFDM modem has been developed for use over an acoustic channel, modem.With full lists of coding.)
    2007-07-30 16:28:47下载
    积分:1
  • matlab
    MATLAB基础知识、基本操作、图形系统程序设计学习资料,适合初学者阅读(MATLAB basic knowledge, basic operations, graphics system program design learning materials, suitable for beginners to read)
    2009-11-15 17:53:23下载
    积分:1
  • bpsk
    本源程序提供在AWGN信道下的bpsk调制方式的仿真,并与理论曲线作比较,得到了理想的结果(This source provides bpsk under the AWGN channel modulation of the simulation, and compared with the theoretical curve obtained satisfactory results)
    2009-12-19 13:46:52下载
    积分:1
  • matlab-image-processing-based
    matlab图像处理基础,都是一些比较基础的东西,希望对有需要的同学有用(matlab image processing based)
    2011-04-25 18:39:55下载
    积分:1
  • g
    说明:  对自由落体运动的MATLAB仿真,不考虑空气阻力。(MATLAB simulation of free-falling movement, without considering air resistance.)
    2011-04-20 13:45:28下载
    积分:1
  • numerical-analysis-and-matlab
    数值分析与matlab实现,有代码,高教版(numerial analysis and the realization of matlab)
    2013-04-03 20:27:43下载
    积分:1
  • matlab
    matlab下的数字图象处理例程,其中有关图片文件只要随便找个图片就可以了(matlab under the digital image processing routines, including the relevant picture file as long as you can not find a picture of the)
    2007-11-06 21:38:49下载
    积分:1
  • Speakerrecognitionsystem
    speech recognition matlab code
    2009-11-08 02:13:50下载
    积分:1
  • power_Transfo3phCoreType
    power_Transfo3phCoreType.rar,功率电子领域matlab仿真文件,已经验证过,程序运行正常(power_Transfo3phCoreType.rar, Power electronics field matlab simulation file, has already been verified, the normal operating procedures)
    2013-08-26 22:00:01下载
    积分:1
  • 696518资源总数
  • 105885会员总数
  • 31今日下载