搜索资源列表
2464613103
- 基于小波变换和 HHT 的分布式并网系统谐波检测方法。 该方法利用小波变换多分辨率分析思想对信号进行划分，并对划分后的信号进行经验模态分解，得到一系列的经验模态函数IMF，并从 IMF分量中提取出基波分量和高次谐波；再对IMF分量进行Hilbert 变换得到信号的频率、幅值信息。-Wavelet transform and HHT based distributed systems and network harmonic detection method. The method use
fbd
- FBD谐波检测算法可以快速有效地检测电力系统中的基波正负序电流和高次谐波电流-FBD harmonic detection algorithm can quickly and efficiently detect the power system fundamental positive Negative sequence current and harmonic current
Wavelet-packet-algorithm
- 通过实验表明小波包变换能精确地从谐波信号中分离出基波，并能根据需要分离出任意谐波信号，是一种很好的电力系统谐波分析工具。-Experiments show that wavelet packet transform can accurately isolated in harmonic signal wave, and can according to need to separate out any harmonic signals,It is a kind of very good pow
shunshiwugongjiance
- 基于瞬时无功理论检测十二相整流电路基波有功电流、基波无功电流以及谐波电流-Detect fundamental active current ，fundamental reactive current and harmonic currents of twelve phase rectifier based on instantaneous reactive power theory.
1-filtre
- 设计一个数字滤波器，只滤取基波分量。对比滤波前后波形的差别，并对数字滤波器进行频率特性分析。-Data filtering
detect_V5
- 一个检测三相系统正弦基波分量的仿真实例，采用dq变换方式-Detecting a fundamental component of the three-phase sinusoidal system simulation examples using dq conversion mode
spwm
- 单极性SPWM控制和逆变器主电路的仿真模型 就基波性能来讲，单极性SPWM在线性调制下谐波性能优于双极性调制-Single polarity SPWM control and inverter main circuit simulation model In terms of its fundamental properties, single polarity SPWM modulation in the linear harmonic performance is superior
matlab
- 三相并网逆变器下的LCL滤波器的谐波分析 给出逆变器输出电压和网侧电流的各次谐波表达式及其所占基波分量。 -lcl lcl lcl lcl
360安全浏览器下载
- 用于生物医学信号中心电信号RR间期的检测，不含基漂的文本形式信号(RR period biomedical engineering)
DDSRF-PLL
- 本文论述了在控制的一个重要方面电网连接的电源转换器，即检测基波正序分量的电网电压不平衡和扭曲的条件下。明确地,提出了一种积极的基于一种新的序列检测器双同步坐标系的解耦锁相环（双dq–PLL），完全消除了检测误差传统的同步参考框架（SRF–锁相环PLL）。(This paper deals with an important aspect in the control of grid connected power converters, that is, detecting the fundam
新建文件夹
- ICA(独立成分分解),可实现采集信号中源信号的分离，便于提取特征量，实现模式识别。同时由于可以将源信号分离开来，可实现信号的降噪，去掉基波、三次谐波、五次谐波等(ICA (independent component decomposition) can realize the separation of the source signals in the acquisition signal, and facilitate the extraction of the feature quant
CWT
- 对滚动轴承声发射信号进行处理，运用基于正交小波基连续小波变换，寻找最优尺度参数(you can know the functions that finds the best scale in the CWT coefficients or the way how you can do this.)
24FFT
- 24点傅立叶系数，直流、基波、谐波，正余弦系数表(24 point Fu Liye coefficient, DC, fundamental wave, harmonic, and cosine coefficient table)
multiresonant
- 本文提出了一种新的多谐frequencyadaptive并网电源的同步方法转换器，不仅可以估计基波功率信号的正负序分量频率，对其他谐波频率序列部分的估计也很受用(this paper presents a new multiresonant frequencyadaptive synchronization method for grid-connected power converters that allows estimating not only the positive- and ne
xiaobo
- 自定义小波变换，可以随便使用各个小波基函数进行小波变换(A custom wavelet transform can be used to transform wavelet transform randomly.)
xiao_bo
- 小波变换对图像去噪，小波用海尔基，图像需输入文件名，图像可以直接去噪，也可以添加高斯白噪声后再去噪。压缩包中包含界面。具体情况详见m文件中注释。(Image denoising with wavelet transform,Harr wavelet)
shujufenxi5
- 本程序可以分析线路手段的电流基波和谐波，并作分析(Analysis of current fundamental wave and harmonic)
MOM_TE
- 计算一维粗糙面TE波入射的散射系数，基尔霍夫近似法，微扰法，矩量法三种(The scattering coefficient of one dimension rough surface TE wave is calculated, Kirchhoff approximation method, perturbation method and moment method three kinds.)
谐波检测模块
- 该vi 可对输入波形进行谐波成分分析 ，获取2-20次谐波成分，可测量直流分量、基波幅值、基波频率等参数，并具有THD越线警告功能(The VI can analyze the harmonic component of the input waveform, obtain 2-20 harmonic components, measure the parameters of the DC component, the amplitude of the fundamental wave, the
并网逆变器中全软件锁相环的设计与实现
- 讲述并网逆变器中全软件锁相环的设计与实现，，即检测基波正序分量的电网电压不平衡和扭曲的条件下。明确地,提出了一种积极的基于一种新的序列检测器双同步坐标系的解耦锁相环（双dq–PLL），完全消除了检测误差传统的同步参考框架（SRF–锁相环PLL）(and implementation of all software phase-locked loop in grid connected inverter is described, that is, detecting the positive a