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Description: This program is to calculate the efficiency,losses and transfered power of the line at various PF's and lengths
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Size: 5908 |
Author: rabah03 |
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Description: This program is to calculate the Reciving End MVA Power for transmission overhead line 220KV
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Size: 4289 |
Author: rabah03 |
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Description: 1 MATLAB 2 2 Starting Up 2 2.1 Windows Systems . . . . . . . . . . 2 2.2 Unix Systems . . . . . . . . . . . . . 2 2.3 Command Line Help . . . . . . . . . 2 2.4 Demos . . . . . . . . . . . . . . . . . 3 3 Matlab as a Calculator 3 4 Numbers & Formats 3 5 Variables 3 5.1 Variable Names . . . . . . . . . . . . 3 6 Suppressing output 4 7 Built{In Functions 4 7.1 Trigonometric Functions . . . . . . . 4 7.2 Other Elementary Functions . . . . . 4 8 Vectors 4 8.1 The Colon Notation . . . . . . . . . 5 8.2 Extracting Bits of a Vector . . . . . 5 8.3 Column Vectors . . . . . . . . . . . . 5 8.4 Transposing . . . . . . . . . . . . . . 5 9 Keeping a record 6 10 Plotting Elementary Functions 6 10.1 Plotting|Titles & Labels . . . . . . 7 10.2 Grids . . . . . . . . . . . . . . . . . . 7 10.3 Line Styles & Colours . . . . . . . . 7 10.4 Multi{plots . . . . . . . . . . . . . . 7 10.5 Hold . . . . . . . . . . . . . . . . . . 7 10.6 Hard Copy . . . . . . . . . . . . . . 8 10.7 Subplot . . . . . . . . . . . . . . . . 8 10.8 Zooming . . . . . . . . . . . . . . . . 8 10.9 Formatted text on Plots . . . . . . . 8 10.10Controlling Axes . . . . . . . . . . . 9 11 Keyboard Accelerators 9 12 Copying to and from Word and other applications 10 12.1 Window Systems . . . . . . . . . . . 10 12.2 Unix Systems . . . . . . . . . . . . . 10 13 Script Files 10 14 Products, Division & Powers of Vectors 11 14.1 Scalar Product (*) . . . . . . . . . . 11 14.2 Dot Product (.*) . . . . . . . . . . . 11 14.3 Dot Division of Arrays (./) . . . . . 12 14.4 Dot Power of Arrays (.^) . . . . . . 12 15 Examples in Plotting 13 16 Matrices|Two{Dimensional Arrays 13 16.1 Size of a matrix . . . . . . . . . . . . 14 16.2 Transpose of a matrix . . . . . . . . 14 16.3 Special Matrices . . . . . . . . . . . 14 16.4 The Identity Matrix . . . . . . . . . 14 16.5 Diagonal Matrices . . . . . . . . . . 15 16.6 Building Matrices . . . . . . . . . . . 15 16.7 Tabulating Functions . . . . . . . . . 15 16.8 Extracting Bits of Matrices . . . . . 16 16.9 Dot product of matrices (.*) . . . . 16 16.10Matrix{vector products . . . . . . . 16 16.11Matrix{Matrix Products . . . . . . . 17 16.12Sparse Matrices . . . . . . . . . . . . 17 17 Systems of Linear Equations 18 17.1 Overdetermined system of linear equations . . . . . . . . . . . . . . . . . . 18 18 Characters, Strings and Text 20 19 Loops 20 20 Logicals 21 20.1 While Loops . . . . . . . . . . . . . . 22 20.2 if...then...else...end . . . . . . 23 21 Function m{ les 23 21.1 Examples of functions . . . . . . . . 24 22 Further Built{in Functions 25 22.1 Rounding Numbers . . . . . . . . . . 25 22.2 The sum Function . . . . . . . . . . . 25 22.3 max & min . . . . . . . . . . . . . . . 26 22.4 Random Numbers . . . . . . . . . . 26 22.5 find for vectors . . . . . . . . . . . . 27 22.6 find for matrices . . . . . . . . . . . 27 23 Plotting Surfaces 27 24 Timing 28 25 On{line Documentation 29 26 Reading and Writing Data Files 29 26.1 Formatted Files . . . . . . . . . . . . 30 26.2 Unformatted Files . . . . . . . . . . 30 27 Graphic User Interfaces 31 28 Command Summary 32
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Size: 877346 |
Author: taffy320 |
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Description: 功率控制算法，对做cdma研究的用户很有帮助。-power control algorithm, the research done cdma users helpful.
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Size: 90112 |
Author: 真覃 |
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Description: This model simulates a CDMA2000 1xRTT Forward link (between Base Station and Mobile Station). In particular, it simulates the Radio Configuration 3 of a Forward Fundamental channel. The block CDMA2k: Initial settings allows you to set different parameters such as data rate, Power Control SubChannel insertion rate, spreading code index, QOSF index and the channel model.
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Size: 105472 |
Author: 张非 |
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Description: MATLAB实现功率谱估计的程序.采用现代谱估计方法,最大熵谱法,Brug法和Levinson法-MATLAB power spectrum estimation procedures. The introduction of modern spectral estimation methods, maximum entropy spectrum, Brug law and Levinson Law
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Size: 2048 |
Author: 刘艳 |
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Description: 这个Matlab程序包，涵盖了很多著名的电力电子，包含的电力设备有：rectifier,ac controllers,convertors,switches等等。涉及整流器,交流控制器,变换器。-The Matlab package, covering a lot of well-known power electronics, including electrical equipment have: rectifier, ac controllers, convertors, switches and so on. Involving rectifiers, AC controllers, converters.
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Size: 24576 |
Author: song |
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Description: MATLAB电力系统设计与分析. 对Matlab软件在店里系统建模和仿真中的应用作了详细的介绍。同时列举了大量详细的例子。-MATLAB power system design and analysis. Of Matlab software in the store system modeling and simulation of the application in detail. At the same time, listed a large number of detailed examples.
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Size: 28227584 |
Author: c陈杰 |
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Description: 这是关于功率谱的Matlab仿真程序，其中有AR、MA、ARMA三种模型的源代码，相关函数的源代码、功率谱的源代码等等。-This is on the power spectrum of the Matlab simulation program
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Size: 10240 |
Author: 李明明 |
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Description: matlab功率谱，带显著性检验,程序给予时间序列的自相关过程做简介估算-matlab power spectrum, with a significant test, the program to give time series of self-related processes do estimates About
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Size: 2048 |
Author: 闫妮 |
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Description: MATLAB code for different power allocation schemes for cognitive radio.
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Size: 345088 |
Author: phrzn |
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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
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Size: 9216 |
Author: 范凯 |
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Description: 利用线性规划法编写的MATLAB程序，用于电力系统无功优化，用于学习交流-Prepared by using linear programming MATLAB program for power system reactive power optimization for the Learning Exchange
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Size: 1039360 |
Author: 王鹏 |
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Description: 本code描述了怎样用matlab来作OFDMA的功率分配问题。-This code describes how to use matlab to make OFDMA power allocation.
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Size: 13312 |
Author: jzhao |
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Description: 基于内点法的配电网潮流计算，收敛精度同牛顿二阶法，不同之处在于它可以处理大规模潮流计算，而牛顿法不行。-power flow of distributiion network
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Size: 6144 |
Author: lisa |
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Description: 应用matlab计算电力系统的最优潮流，蛮好的。-matlab power flow annlysis
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Size: 142336 |
Author: 张晓凡 |
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Description: 介绍了matlab电力系统的仿真与分析的基本知识-Basic knowledge of matlab power system simulation and analysis
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Size: 16718848 |
Author: 吴颖 |
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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
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Size: 7168 |
Author: 小小 |
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Description: Matlab功率谱计算，其中包含了关于功率的几种算法-Matlab power spectrum calculation, which contains the power of several algorithms
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Size: 14336 |
Author: 叶萌 |
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Description: matlab power flow analysis
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Size: 96256 |
Author: Mohsen22 |
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