登录
首页 » matlab » MATLAB

MATLAB

于 2020-07-08 发布 文件大小:9KB
0 170
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

  • ATIOnTargetExample
    Engine control Unit Source code
    2007-10-25 17:06:26下载
    积分:1
  • Decision_Boundary_using_SVMs(1)
    Matlab code to use decision boundary using SVM.
    2014-02-19 06:20:30下载
    积分:1
  • mulNewtonSOR
    本代码为牛顿-SOR迭代法求解非线性方程组。其调用格式为[r,m]=mulNewtonSOR(F,x0,w,h,eps) 其中F:方程组,x0:方程组初始解,w:SOR迭代因子,h:数值积分常数,eps:根的精度,m:迭代步数。(The code for the Newton-SOR iteration method for solving nonlinear equations. Its call format [r, m] = mulNewtonSOR (F, x0, w, h, eps) where F: equations, x0: the initial solution of equations, w: SOR iterative factor, h: numerical integration constant, eps: the root of the accuracy, m: the number of iterative steps.)
    2010-01-01 14:13:48下载
    积分:1
  • RD
    说明:  rd算法仿真,有单点目标成像仿真结果。去除了距离徙动。(rd algorithm simulation, has a single point target imaging simulation results. In addition to migration distance.)
    2008-07-03 16:20:49下载
    积分:1
  • Matlab_code_SPL
    Source code: M. A. Haque and M. K. Hasan, "Noise robust multichannel frequency-domain LMS-type algorithms for blind channel identification", IEEE Signal Processing Letters, pp.305-308, vol.15, 2008.
    2012-01-27 02:02:27下载
    积分:1
  • designoffirfilter
    用matlab做仿真,设计了一个FIR滤波器,详细见说明文档和程序的详细注释(Using matlab to do simulation, we designed a FIR filter, detailed documentation and procedures, see the detailed notes)
    2008-04-24 09:31:47下载
    积分:1
  • radiation+pattern
    radiation pattern of a dipole
    2010-12-04 02:53:04下载
    积分:1
  • matlabforserial
    matlab串口通信,实例教程,基于GUI的matlab串口通信编程(matlab serial communication, tutorial examples, GUI-based serial communication programming matlab)
    2020-07-24 16:08:43下载
    积分:1
  • high-gain-system
    Manual MT4 trading of GPBJPY H1 or H4 very good include template and indicators...
    2013-12-06 19:33:41下载
    积分:1
  • backtoforward-done
    根据流量特性中临界和非临界来计算对应于不同情况下的流量值以及相对应的压力(According to the flow characteristics to calculate the critical and non-critical cases corresponding to different flow values ​ ​ and the corresponding pressure)
    2011-10-21 20:02:54下载
    积分:1
  • 696518资源总数
  • 104228会员总数
  • 45今日下载