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Description: 电能质量扰动信号，产生电压凹陷、谐波等信号。可以另外下载ST变换的源代码-Power quality disturbance signals, resulting in voltage sag, harmonics and other signals. In addition ST can download the source code transformation
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Author: xfw |
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Description: 此源码为用于电力电子变换器的DSP汇编源程序，可以用来控制逆变器产品电压凹陷波形。-This source for power electronic converters for DSP compilation of source code that can be used to control inverter voltage sag waveform Products.
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Size: 91136 |
Author: q |
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Description: 基于专家系统的电能质量分析。识别程序，电压暂升，暂降-Based on expert system for power quality analysis. Identification procedures, voltage suspense liters sag
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Size: 1024 |
Author: cissy wu |
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Description: Voltage Sag and Mitigation Using
Dynamic Voltage Restorer (DVR) System
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Size: 455680 |
Author: saad |
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Description: New Control Technique Applied in Dynamic Voltage
Restorer for Voltage Sag Mitigation
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Size: 518144 |
Author: saad |
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Description: complet out put for the dynamic voltage restorer in simpower systems tool box. power systems voltage and sag removal techniques
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Size: 98304 |
Author: spark |
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Description: 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
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Author: NBB |
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Description: generation of voltage sag in power system lines
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Size: 12288 |
Author: madhu |
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Description: 本程序是基于S变换的短时电能质量扰动检测方法实现的，用于分析电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析-This procedure is based on the S transform short-term power quality disturbance detection method implemented for the analysis of voltage sag magnitude, phase transition, duration, and harmonic content analysis
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Author: gaocheng |
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Description: 电网侧下垂控制模型，可以稳定逆变器输出的频率和电压的幅值-Grid-side sag control model, can stabilize the inverter output frequency and voltage amplitude
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Size: 19456 |
Author: 刘帅 |
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Description: 基于小波变换的电压暂降定位
利用模极大值原理实现暂降起止时刻的准确检测-voltage sag lacote based on wavelet transform
Used to achieve maximum modulus principle sag beginning and ending time of the accurate detection
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Size: 2048 |
Author: wangjia |
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Description: 基于dq变换的三相电压暂降生成方法Based on the dq transform three-phase voltage sag generating method-Based on the dq transform three-phase voltage sag generating method
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Author: zz222 |
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Description: 仿真产生简单的短路电压暂降信号,求小波系数模极大值-Simulation of a simple short-circuit voltage sag signal, find the modulus maxima of wavelet coefficients
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Size: 1024 |
Author: 车队 |
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Description: 使用小波包变换分析信号的MATLAB程序-Simulation of a simple short-circuit voltage sag signal, find the modulus maxima of wavelet coefficients...
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Author: 车队 |
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Description: This model simulate voltage sag when starting motor.
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Size: 10240 |
Author: Bim Bim |
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Description: Voltage Sag Mitigation with D-STATCOM
In Distribution Systems
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Author: fodiloio |
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Description: 电压跌落是最严重的动态电能质量问题之一，
精确定位电压跌落起止时间是应对电压跌落问题的
重要前提和基础。由于电压采样信号往往有噪声分
量，现有的方法在定位电压跌落的起止时间时存在
局限性。本文提出利用多小波变换及相邻系数去噪
的电压跌落定位方法。多小波兼有对称性、正交性、
有限支撑性和二阶消失矩等优异的信号处理性能，
利用GHM多小波可以准确定位电压跌落起止时间。
多小波变换系数在每层之间具有对应关系，多小波
相邻系数将紧相邻的若干个系数作为一个整体来确
定阈值，考虑了系数之间的相关性，能获得更好的
去噪效果。通过 Matlab 进行仿真验证，仿真结果表
明，所提出的方法的正确性。
-Voltage sag is one of the most serious
dynamic power quality problems. Critical start-time
and end-time are important indices for voltage sags.
But the sampling signals often have noisy component,
the locations of start-time and end-time are hard to get.
Wavelet is an effective tool for those non-stationary
signal processing and has been used in this field. Local
feature in the signal can be enlarged after the
transformation using the scalar wavelet. But scalar
wavelets cannot contain orthogonality, symmetry,
compact support and higher order of vanishing
moments simultaneously. In this thesis, multi-wavelets
GHM is used to detect and locate power quality
disturbances. Multi-wavelets offer many excellent
properties such as the same approximation order but
more compact support. The dependence of the
multi-wavelets coefficients varies with the level, so
neighboring coefficien
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Author: 李荣 |
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Description: A Study on Bus Voltage Sag Considering the Impedance of SFCL and Fault Conditions in Power Distribution Systems 10.1109-TASC.2013.2238373
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Author: s |
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Description: voltage sag analysys 10.1109-TASC.2013.2238374.pdf
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Author: s |
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Description: D-STATCOM injects a current into the system to correct the voltage sag, swell and power factor. Distribution Static Synchronous Compensator (D- STATCOM) is an effective measure to maintain voltage stability and improve power quality of distribution system.
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Size: 11838 |
Author: suri270 |
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