To conquer the old wavelet inherent shortcoming, a combine wavelet is designed and used to realize the accurate detection to harmonic contents and frequency of power quality transient signals.
为了克服小波固有的缺陷，本文构造了一种组合小波，并利用它实现了对电力暂态谐波信号含量及频率的准确检测。
The suboptimal controlling method which meets the requirement of IEEE transient power quality is given.
在满足IEEE暂态电能质量条件下，实现下行信号系统准最优控制。
According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
针对电能质量扰动信号的特性，本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
Transient power quality issues have been becoming extrusive, such as voltage well, voltage sag and voltage interruption, and bring customers amount of loss.
暂态电能质量问题越来越突出，如电压跌落、骤升、短时断电等现象经常发生，给用户带来了很大的损失。
These devices have active functions to improve power quality, enhance stability of power network and transient characteristic of power system.
这些装置对改善电能质量，提高电网的稳定性和系统的暂态特性有着积极的作用。
Using the different time-frequency characteristics of wavelet and wavelet packet, the proposed approach can avoid the noise and complete the detection and classification of transient power quality.
该方法利用小波和小波包各自的时频分解特点，实现了暂态电能质量扰动的自动检测和分类。
The transient power quality problems become more important. Capacitor switching which brings transient disturbance is a common power quality event.
暂态电能质量问题日益突出，电容器投切造成的暂态扰动是其中较为常见的一种。
Against the inherent defects of the traditional linear filter in the detection of transient power quality disturbances, this paper USES mathematical morphology morphological filters.
针对传统线性滤波器在暂态电能质量扰动检测中存在的固有缺陷，本文采用形态滤波器对电力扰动信号进行消噪。
Transient power quality may cause severe loss to sensitive customers; therefore, it is very important to recognize overlapped transient power quality under general terms.
暂态电能质量会给敏感用户带来重大损失，因此，在最普遍情况下识别叠加的暂态电能质量扰动非常重要。
Dynamic voltage restorer (DVR) is an effective solution for transient power quality problems.
动态电压恢复器(DVR)是解决暂态电能质量问题的一种有效途径。
Dynamic voltage restorer (DVR) is an effective solution for transient power quality problems.
动态电压恢复器(DVR)是解决暂态电能质量问题的一种有效途径。
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