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RS232
rs232收发程序matlab (rs232 transceiver procedures matlab)
- 2014-10-23 09:58:45下载
- 积分:1
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基于遗传算法和粒子群算法 Allocation-algorithm
基于遗传算法和粒子群算法的认知无线电频谱分配算法(Allocation algorithm based on genetic algorithm and particle swarm optimization of cognitive radio spectrum)
- 2014-06-11 11:05:20下载
- 积分:1
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Matlabsfjj
说明: matlab 算法集锦
集合了matlab在科学计算上的许多优秀算法,供大家学习。(Highlights of the collection matlab algorithm matlab in many scientific computing algorithms good for everyone to learn.)
- 2008-09-24 11:08:29下载
- 积分:1
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theortynuralnetMatlab7
说明: 神经网络理论与Matlab7实现,与《神经网络理论>书籍配套(Neural Network Theory and Matlab7 realized, with the " neural network theory" book package)
- 2009-08-25 22:31:30下载
- 积分:1
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MyJacobi
Jacobi迭 代 法, 用于方程求根 matlab(Jacobi Iterative)
- 2011-10-20 12:59:23下载
- 积分:1
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Epileptic-Seizure-Detection
利用小波变换和样本熵对癫痫脑电进行识别的文章(Recognition article epileptic EEG using wavelet transform and sample entropy)
- 2012-10-01 16:57:30下载
- 积分:1
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Logis_Lyap
Orbit diagram of lyapunov exponent for logistic map
- 2012-10-25 05:40:34下载
- 积分:1
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MATLAB
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)
- 2020-07-08 16:38:56下载
- 积分:1
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ar_burg
经典谱估计AR模型的BURG算法 可与自带函数PBURG对比(The classic AR model spectrum estimation BURG algorithm and comes with a function PBURG contrast)
- 2012-09-18 14:09:26下载
- 积分:1
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multi-objective optimization model
多目标优化模型,用于识别在限定条件下最优的资源分配选择(multi-objective optimization model)
- 2021-02-09 05:39:54下载
- 积分:1