Remote Monitoring System of Power Network Based on Virtual Instrument and Wavelet Transform

Author

Zhenmei, Li ; Jin, Shen ; Yanping, Wang ; Yan, Yang

Author_Institution

Shandong Univ. of Technol., Zibo

fYear

2007

Abstract

This remote monitoring system of power network was developed by using the virtual instrument technology, network technology and database technology. The basic structure of the system is Browser/Server mode. Through Internet Explorer, remote client can browse the real-time monitoring data of power network, such as frequency; power factor; virtual value of voltage and current, etc. In the system, the wavelet transform was applied to virtual instrument by using the MATLAB script node in LabVIEW, and utilizes denoising method of sqtwolog soft threshold to eliminate the high-frequency noise. The remote storage and query for a large quantity of data in power network monitoring was realized by using ADO in LabVIEW, remote panel technology built-in LabVIEW 7 Express was applied to satisfy the real-time data display of remote monitoring.

Keywords

online front-ends; power engineering computing; power system measurement; signal denoising; virtual instrumentation; wavelet transforms; ADO; Internet Explorer; LabVIEW; Matlab; database technology; denoising method; network technology; power network; remote client; remote monitoring system; sqtwolog soft threshold; virtual instrument; wavelet transform; Databases; Frequency; IP networks; Instruments; Network servers; Reactive power; Remote monitoring; Voltage; Wavelet transforms; Web server; ADO; measurement; network; virtual instrument; wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-1136-8

Electronic_ISBN

978-1-4244-1136-8

Type

conf

DOI

10.1109/ICEMI.2007.4350890

Filename

4350890