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bldcm
说明: 所建立的无刷直流电动机系统的Simulink仿真模型图,功能模块包括:逆变器模块、电源模块、换相逻辑模块、PWM信号产生模块、电动机本体模块、转速测量模块和磁极位置测量模块。(Established by the brushless DC motor system in Simulink simulation model diagram, function modules include: inverter module, power modules, logic modules for phase, PWM signal generation module, motor ontology modules, speed measurement modules, and pole position measurement module.)
- 2008-11-27 16:07:37下载
- 积分:1
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music
说明: 该程序是music算法的一个示例,通过该算法实现了测向功能(The music program is an example of the algorithm, through which the function of the measuring algorithm)
- 2011-04-16 15:50:15下载
- 积分:1
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fuel-cell
simulation of fuel cell -part1
- 2013-07-29 15:55:22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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Denoising
it is a matlab software we have to plan to implement it
- 2009-12-14 18:45:57下载
- 积分:1
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findmask
小波阈值去噪,实现那的生死小波的去早实现和问卷字啊额的(wavelet soft-thresholding
this is a good ids ea se )
- 2009-05-24 15:22:33下载
- 积分:1
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lyap
lyapunov exponent ode
- 2011-11-25 03:16:38下载
- 积分:1
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anim_pres
fortran的matlab代码,可以将fortran仿真结果可视化(fortran matlab code, you can visualize simulation results fortran)
- 2014-02-20 21:05:27下载
- 积分:1
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massive_mimo_equal
基于BP算法的massive mimo的均衡算法(Equalization algorithm for massive MIMO based on BP)
- 2020-07-06 16:38:58下载
- 积分:1
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UltimateToolBox93
UltimateToolBox93代码、文档、例子(UltimateToolBox93)
- 2009-03-22 12:58:29下载
- 积分:1