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HHT_power-system_power-quality_disturbances-detect
优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术,该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列,每一个序列称为一个固有模态函数(IMF),然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱,汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理,将信号中真实存在的不同尺度波动或趋势逐级分解出来,最终用瞬时频率和能量来表征原信号的频率含量。
本文研究了基于HHT的暂态电能质量扰动检测方法,介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻,持续时间和扰动幅度,适用于电能质量多扰动的监测和辨识系统。
(Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology,including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis.In this method,arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment,each sequence is called an intrinsic mode function(IMF),and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis,a summary of all Hilbert spectrum assembled to the spectra of the original signal.In essence,this method is a stable processing for non-stationary signal,which decomposed the different fluctuations or trends in the signal in rum,and represented the frequency content of the original signal using the final instantaneous frequency and energy.
This paper study a method to detect power quality disturbances based on the HHT,in which the principle and the realization of the HHT and the realization of power quality disturbance)
- 2021-04-24 10:48:48下载
- 积分:1
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MATLAB-score-managemeng
说明: 用matlab自带的GUI界面设计了一个成绩管理界面,可进行成绩的载入、查询、绘图、求平均分和存储!可直接用!
(Matlab GUI interface that comes with the design of a performance management interface, the results of the load, query, plot, find the average and store! Can be used directly!)
- 2011-03-16 20:54:39下载
- 积分:1
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SIMULINKintroduction
SIMULINK功能模块的处理SIMULINK功能模块的介绍SIMULINK功能模块的连接(Simulation module processing module SIMULINK introductory SIMULI NK functional modules link)
- 2007-06-10 00:19:29下载
- 积分:1
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AGA-BP
改进的自适应遗传算法与BP算法结合算法的整套算法及子程序(Improved adaptive genetic algorithm combined with BP algorithm algorithm set of algorithms and subroutines)
- 2012-09-30 19:05:34下载
- 积分:1
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filtering+compression
利用小波分解与重构,实现图像滤波和压缩,可灵活选用其他小波,简单易懂,特别适合小波初学者.(using wavelet decomposition and reconstruction, image filtering and compression, the flexibility to choose other wavelet is simple to understand and Wavelet particularly suitable for beginners.)
- 2006-11-09 20:51:08下载
- 积分:1
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gdc_v1.0
国外matlab,时间转换程序,层次清晰,有源代码,也有界面(
Foreign matlab, time conversion process, the level of clarity, source code, there are interface)
- 2013-12-05 01:21:31下载
- 积分:1
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3weiinitial
基于粒子群算法的一点个人的研究,希望与大家共同进步 (Particle swarm optimization based on a personal research, hope and progress together)
- 2011-01-04 19:42:52下载
- 积分:1
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aca-nn
使用蚁群算法并进行改进,利用改进的蚁群算法优化BP神经网络的程序(Ant colony algorithm and improved use of improved ant colony algorithm to optimize BP neural network program)
- 2013-01-04 10:28:22下载
- 积分:1
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ES_FEM_Mindlin_plate
Mindlin plate analysic
- 2011-12-13 12:23:54下载
- 积分:1
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Q1
This algorithm routing by reinforcement learning
- 2015-02-10 23:17:38下载
- 积分:1