flicker n. 1.闪烁,摇;忽隐忽现;扑动。 2.〔美俚〕假装昏倒的乞丐。 3.〔 pl.〕 〔美俚〕电影。 4.〔flickers〕〔美俚〕电影制片业。 vi. 1.明灭不定,闪烁;闪变。 2.(旗等)飘扬,(树叶等)摆动。 3.〔美俚〕昏倒,假装昏倒。 The fire flickers low. 炉火颤动欲灭。 vt. 使闪烁;使颤动。 n. 〔美国〕金翼啄木鸟。
The basic concepts and character values of voltage fluctuation and flicker are introduced firstly , and then the common methods of suppress the voltage fluctuation are discussed . further more , the process of extracting voltage fluctuation signal and calculating flicker values is analyzed , and the principle of detecting voltage fluctuation and flicker is detailed . by analyzing and comparing the features of the methods and devices in existence , a new digital detection method is present 论文介绍了电压波动和闪变的基本概念、特征量以及抑制电压波动与闪变的常用方法,从电压波动信号的提取和闪变值的获得两方面系统地阐述了电压波动与闪变的检测原理,分析比较了现有测量方法和装置的特点和优劣,在此基础上,提出了一种新的数字式微机检测方法。
Based on iec standards , the methods of designing square demodulator , bandpass - weighted filter , and smoothing filter are presented . besides , the signal conditioning circuits and online statistical analysis methods of instantaneous flicker value are given . matlab simulink is also used to simulate the measuring process of voltage fluctuation and flcker 基于iec标准要求,设计了实现数字式电压闪变测量的平方解调器、带通加权滤波器、平滑滤波器等各环节,给出了信号调理电路和瞬时闪变值在线统计分析方法,并应用matlab系统仿真工具simulink对电压波动和闪变测量全过程进行了数字化仿真。