The Monitoring and Analysis System of Power Quality Based on Virtual Instrument and Wavelet Transform
The remote monitoring system of power quality based on C/S and B/S mixed mode was developed by using the virtuaI instrument technology.network technology and database technology.It is an open distributed system mainly composed of database server.Web server.virtual instrument and remote client.The paper proposes a method of monitoring and analyzing voltage fluctuation and flicker by means of wavelet transform：the signals were divided into multi.frequency bands according to the voltage flicker signal character.thus the feature of the flicker Was extracted,so were the frequency and amplitude of voltage fluctuation,and the accurate moment voltage flicker occurred.The remote storage and access for a large quantity of data in power quality monitoring was realized by using ADo in LabVIEW.Through internet explorer.the remote client can browse the real-time monitoring data of power quality.such as frequency deviation,voltage deviation,voltage fluctuation andflicker.
virtual instrument network wavelet transform voltage flicker ADO
Zhenmei Li Jin Shen Peiyu Wei Shulian Yang
国际会议
The International Conference Information Computing and Automation(2007国际信息计算与自动化会议)
成都
英文
648-651
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）