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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
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nianzu
说明： 使用MatlaB编程，计算三维流体的粘阻，同时生成横截面的速度矢量图像(Use MatlaB programming, calculating three-dimensional viscous fluid resistance, and generate cross-sectional velocity vector images)
- 2010-04-22 21:43:52下载
- 积分：1
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AWGNPQPSK
说明： 完成QPSK的调制和解调 并通过瑞利信道分析误比特性能(QPSK modulation and demodulation completed by analysis of BER performance in Rayleigh Channel)
- 2011-04-12 21:28:15下载
- 积分：1
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matlab
matlab主要工具箱函数以及详细注解等等。(matlab toolbox function main, and detailed notes and so on.)
- 2011-05-03 10:23:53下载
- 积分：1
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Introduction2MATLABGaToolsBox
Matlab遗传算法工具箱及应用PDF,校正过页码，并添加了目录标签。(introduction fo matlab gatool box, add page number and content list)
- 2013-08-10 10:50:27下载
- 积分：1
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coding3-2
decoding-ldpc codes with 6 methods
- 2012-02-03 23:57:43下载
- 积分：1
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New-Folder-(7)
this code shows the gives the excel sheet of required parameter as given in the code for show the comparison ...............by pandey ji
- 2011-05-08 15:29:36下载
- 积分：1
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ICA
Imperialistic Competitive Algorithm (ICA)
Version 1.9 - May 2010
- 2012-06-13 09:40:29下载
- 积分：1
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cumsimp
辛普森规则逐列累计总和，是一个求卷积的函数。(Simpson s rule by the cumulative sum of the column is a convolution function.)
- 2014-01-28 10:48:26下载
- 积分：1
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CapChannel_DieDai
迭代法球信道容量，用matlab语言写的。结构紧凑，注释详细，代码经过优化，运行效率相当高。(Get the capcity of discrete channel by using MATLAB language with the method of DIEDAI。)
- 2010-12-21 19:30:14下载
- 积分：1
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