-
ccfx
MATLAB Programming for Engineering
- 2007-12-20 14:27:32下载
- 积分：1
-
Detection-of-short-duration-power-quality-disturba
优秀论文及配套源码。电压暂降是动态电能质量问题中最受关注的热点之一。大量新型电力电子设备的广泛使用对电网电能质量的要求越来越高，而且电压暂降在电网中又具有一定的传播性。因此，无论从电网还是用户都迫切需要对电压暂降进行研究和治理。对电压暂降的检测是解决电压暂降的前提条件，故本论文主要对电压暂降的检测方法进行研究。
本文分析了国内外短时电能质量扰动检测的研究现状，并着重讨论了短路故障、感应电动机启动和变压器激磁三种电压暂降扰动情况下电压暂降的特性；在此基础上选择了基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析。仿真结果表明，该方法很好地实现了对电压暂降各特征量的检测。
(The voltage sag is one of most hot topics in dynamic electric energy problems. Masses of new power and electron facilities have been put into use widely, requiring a high quality of electric network and power, chiefly the voltage sag. Moreover, the voltage sag can spread in the electric network. So people have every reason to research and control the voltage sag. However, before developing the voltage sag, people have to detect it. On account of the above, this essay will chiefly focus on the detect methods of the voltage sags.
In this paper, the status of the short duration power quality disturbance based on the different method are researched firstly, and emphasizes the characteristic of the voltage sag under the situation of the three kinds of voltage sag disturbances like the short circuit fault, induction motor start-up and transformer excitation. On the basis of the above, the short duration power quality disturbance detection method based on S transform is chosen. The complex m)
- 2021-04-08 19:39:00下载
- 积分：1
-
matlab
matlab教程，对刚入门的同学会有些帮助，很详细地引导新手入门(matlab tutorial)
- 2009-12-04 20:07:18下载
- 积分：1
-
meng_rm41
给出接收信号眼图及系统仿真误码率，基于多相结构的信道化接收机，通过matlab代码。( The received signal is given eye and BER simulation systems, Channelized receiver based on multi-phase structure, By matlab code.)
- 2017-04-06 18:11:25下载
- 积分：1
-
qianbihuaxinfangfa
一种铅笔画绘制的新方法，MATLAB环境，对非真实感有帮助(A pencil drawing of the new method, MATLAB environment, help for non-photorealistic)
- 2010-11-09 08:54:04下载
- 积分：1
-
SimpleMthd
单纯形法matlab程序
求解标准型线性规划:max c*x s.t. A*x=b x>=0
本函数中的A是单纯初始表，包括:最后一行是初始的检验数，最后一列是资源向量b
N是初始的基变量的下标
输出变量sol是最优解, 其中松弛变量（或剩余变量）可能不为0
输出变量val是最优目标值，kk是迭代次数( example：max 2*x1+3*x2
s.t. x1+2*x2<=8
4*x1<=16
4*x2<=12
x1,x2>=0)
- 2013-11-29 17:05:08下载
- 积分：1
-
a-quadrotor-of-modeing
作者详细给出了四轴飞行器建模的仿真实验过程，适合飞行爱好者阅读(The author gives a detailed simulation modeling process Four aircraft for flight enthusiasts reading)
- 2013-11-26 21:21:21下载
- 积分：1
-
CointegrationPairsTrading
MATLAB code for Co-integration-based pairs trading
- 2013-05-26 22:01:25下载
- 积分：1
-
Broadband-spectrum-detection
介绍了几个认知无线电的宽带频谱检测实现的MATLAB代码，包括能量检测算法、匹配滤波器方法等。(Introduces several MATLAB code based broadband spectrum of cognitive radio technology, including energy detection algorithm, matched filter method, etc.)
- 2015-10-05 22:28:28下载
- 积分：1
-
fangzhen
说明： 方阵进行信号方向检测的程序,不同阵源位置
(direction of arrival in quare array)
- 2010-04-20 21:16:00下载
- 积分：1
