作者：柳明洙, 刘永强, 刘博, 陈世杰

作者单位：华南理工大学电力学院, 广东广州 510640

关键词：闪变; LabVIEW系统; 虚拟仪器; 瞬时电压视感度; 监测

摘要：

为了实现对电压闪变的监测,以减少其对人们工作、生活的影响,根据虚拟仪器的设计思想,按照国际电工委员会(IEC)制定的闪变仪的测试功能和设计规范,给出了IEC数字式闪变仪各个环节数字滤波器的传递函数和运算结构,在LabVIEW环境下建立了闪变仪的模型,根据标准调整了各个模块环节的参数,对电压数字信号进行了分析处理,得到了电压瞬时闪变视感度,将计算结果与标准值进行了比较验证,仿真实验证实了利用虚拟仪器监测闪变的可行性。

Method of monitoring voltage flicker by virtual instrument

LIU Ming-zhu, LIU Yong-qiang, LIU Bo, CHEN Shi-jie

Electronic Power School, South China University of Technology, Guangzhou 510640, China

Abstract: To reduce the affect of voltage flicker on people's work and lives, monitoring the voltage flicker is required. Transfer function and operation structure are obtained from the International Electrotechnical Commission (IEC) testing and design specifications of the flicker meter using virtual instrument technology. By establishing the model of the flicker meter in the LabVIEW environment, adjusting the parameters of every module and analyzing the voltage digital signal, instantaneous flicker sensation level are acquired and compared with the certified value. Simulation experiments verify the feasibility of this method.

Keywords: Flicker; LabVIEW; Virtual instrument; Instantaneous flicker sensation level; Monitoring

2009, 35(3): 118-120  收稿日期: 2008-10-8;收到修改稿日期: 2009-1-13

基金项目: 

作者简介: 柳明洙(1983-),男,黑龙江牡丹江市人,朝鲜族,硕士研究生,专业方向为虚拟仪器的电能质量监测。

参考文献

[1] 金 纯,许光辰,孙 睿.蓝牙技术[M].北京:电子工业出版社,2001.
[2] 赵 刚,施 围,林海雪.闪变值计算方法的研究[J].电网技术,2001,25(11):15-18.
[3] Hung S,Hsie. Application of continues wavelet transform for study of voltage Flicker-genernted signals[J].IEEE Transactions on Aerospace and Electric Systems,2000,36(3):925-932.
[4] Chen M T,Meliopulos A P S. Wavelet-based algorithm for voltage flicker analysis[C]. Proceeding of the Ninth International Conference on Harmonics and Quality of Power, Orlando,Florida,USA,2000:732-738.