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PID_Control_DC_Motor
PID control dc motor
- 2010-09-10 20:27:58下载
- 积分:1
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CreateConstellations
CreateConstellations.m用matlab实现一个星座图象(CreateConstellations.m using Matlab achieve a constellation of images)
- 2006-11-05 10:19:01下载
- 积分:1
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遗传算法matlab
matlab编写的遗传算法,采用二进制编码,有说明文档。(Matlab prepared by the genetic algorithm, using the binary coding, documentation.)
- 2005-07-07 16:10:58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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Sensor-fault-
这是一篇很好的关于风力发电的资料,希望对大家有所帮组。(good material)
- 2013-07-14 20:08:49下载
- 积分:1
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argnCurr2cdf
说明: 将Argonaut数据写成nc格式的matlab函数(A function to write Argonaut water flow data to a NetCDF file)
- 2011-04-17 01:20:32下载
- 积分:1
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Matlab_wavelet_denoising
Matlab的小波去噪程序,小波广泛应用于图像处理、去噪等方面(Matlab' s wavelet denoising procedure, wavelet is widely used in image processing, denoising, etc.)
- 2011-01-03 11:30:11下载
- 积分:1
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ch12
说明: matlab 系统仿真 实例第十二章所有例子,可以学习下;(matlab simulation examples of Chapter XII of all the examples, you can learn from the next )
- 2010-03-24 14:29:08下载
- 积分:1
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S
matlab的S函数例程,是关于滑模变结构的(S function matlab routines, is about Sliding Mode Variable Structure)
- 2013-08-18 10:58:53下载
- 积分:1
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raoshe
此程序采用FDTD方法编写,可以用来观察和验证电磁波的绕射(This program is written using the FDTD method can be used to observe and verify the electromagnetic wave diffraction)
- 2021-01-13 16:58:48下载
- 积分:1