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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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baotong
一个报童从报刊发行中心订报后零售，每卖一份报纸可赚钱a元；若报纸卖不出去，则退回发行处，每退一份要赔钱b元。每天报童卖出的份数是随机的，但报童可以根据以往卖报情况统计得到每天卖k份报纸的概率密度p(k)。
（1） 求报童每天期望收益达到最大（或损失达到最小）的定报量z。
（2） 改变参数a/b的值，观察订报量的最优值变化，画出变化曲线。
试画出仿真流程图，进行程序实现，并对仿真结果进行分析。
(A newsboy subscribe from the press after the retail distribution centers, each sale of a newspaper can make money a million if newspapers can not be sold, then returned to Issue Department, each retire to a loss of a b element. Newsboy sold shares in a day is random, but the newsboy can sell based on past statistics reported to be selling daily newspaper k the probability density p (k). (1) seeking newsboy expected profit per day to maximize (or minimize loss) reported that the volume of fixed-z. (2) change the parameters a/b values, subscribe to observe changes in the volume of the optimal value, draw curve. Simulation test to draw a flow chart for program realization, and simulation results for analysis.)
- 2008-06-14 01:16:47下载
- 积分：1
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MATLABTrain
MATLAB官方培训.pdf
可以较全面了解其功能！(MATLAB official training. Pdf can be a more comprehensive understanding of their function!)
- 2007-12-07 16:52:49下载
- 积分：1
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emd_toolbox
EMD工具箱，不仅包含源程序，而且有例子，适合初学者。(EMD toolbox)
- 2010-11-11 23:43:48下载
- 积分：1
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untitled1
光伏并网逆变器的仿真系统的S函数,能实现其的模拟仿真(PV grid-connected inverter simulation system S-function)
- 2013-10-13 15:51:56下载
- 积分：1
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Cleve-SolvingSudoku
应用matlab进行数独解密的算法和教程，英文版，来自matlab创始人(The Userguide to use matlab to solve sudoku)
- 2013-11-22 17:18:27下载
- 积分：1
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Robust-Optimization-(Book)
This is a very good book on Robust optimization that covers all the essentials of robust optimization.
- 2013-12-07 04:52:53下载
- 积分：1
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3.ModelStability
Since the main component of a control scheme is the PI Controller, a model with an anti wind-up structure has been implemented in Simulink. The Maximum Power Point Tracker (MPPT) block is based on a look-up table obtained from the wind turbine characteristics.
- 2012-09-19 03:03:25下载
- 积分：1
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数值计算方法的相关代码
有关二分法、试值法、帕德逼近、高斯消去的代码，可供数值计算方法学习者参考(About dichotomy, test method, Pader approximation, Gaussian elimination of code, numerical calculation method for learner reference)
- 2020-11-06 16:39:49下载
- 积分：1
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dpsk
对M=8的dpsk实现一个差分编码器，M=4的DPSK通信系统的monte carlo仿真(M = 8 for the DPSK implementation of a differential encoder, M = 4 of DPSK communication system monte carlo simulation)
- 2009-03-19 15:19:41下载
- 积分：1
