Description: 牛顿拉夫逊算法进行潮流计算,数据处理程序,方便处理实验数据,并取得数学表达式-Newton Raphson algorithm flow calculation, data processing procedures, facilitate the processing of experimental data and mathematical expression made Platform: |
Size: 1024 |
Author:大鸟 |
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Description: 电力系统最优潮流程序,可以应用于电力市场下的最优潮流计算。适合电力系统专业的同仁使用-optimal power flow procedure can be applied to the electricity market under the optimal power flow calculation. Power systems for the professional colleagues use Platform: |
Size: 837632 |
Author:仲伟宽 |
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Description: matlab编写的潮流计算程序,对于c语言头痛者的良好选择-matlab prepared flow calculation procedures, for c language are a good selection headache Platform: |
Size: 16384 |
Author:任我行 |
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Description: 基于MATLAB的直角坐标潮流计算程序 -MATLAB-based computer program based on the trend of rectangular coordinates of the rectangular coordinates power flow calculation MATLAB program Platform: |
Size: 1024 |
Author:吕清洁 |
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Description: 配电网潮流计算源程序,可直接运行的,修改输入数据即可-Source distribution power flow calculation can be run directly, you can modify the input data Platform: |
Size: 1024 |
Author:王鹏 |
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Description: 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 Platform: |
Size: 9216 |
Author:范凯 |
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Description: 使用粒子群优化算法对电力系统最有潮流进行优化,比较不错的程序-Using particle swarm optimization algorithm for power system to optimize the power flow, relatively good program Platform: |
Size: 2048 |
Author:dj |
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Description: 潮流计算MATLAB 潮流计算MATLAB 潮流计算MATLAB-power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab power flow matlab Platform: |
Size: 7168 |
Author:小小 |
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Description: 基于潮流计算的汤姆逊算法的matlab实现方法及应用-Based on MATLAB Newton Raphson power flow calculation method and its application Platform: |
Size: 28672 |
Author:梁爽 |
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