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A Virtual Instrumentation System Based on Three-Dimensional Current Coordinates for Monitoring Power Quality  

정영국 (대불대 공대 전기공학과)
임영철 (전남대 공대 전기공학과)
김영철 (대불대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.52, no.3, 2003 , pp. 124-132 More about this Journal
Abstract
The goal of this paper is to propose a virtual instrumentation system based on three dimensional current coordinates for monitoring power quality A developed system with various experimental graphic screens and numerical results is made up 586-PC and DSP(digital signal processor) board, power quality analyzing and evaluating software for windows. Power parameters are analyzed using correlation signal processing techniques based on the correlation between voltage and current waveforms. Analysis. results are visualized by 3-D current coordinates, and it Is compared and evaluated with conventional time / frequency domain. To verify the validity of the proposed system, power and harmonic parameters of single phase induction motor drives is analyzed and verified.
Keywords
Power Quality Monitor; Three-Dimensional Current Coordinates; Virtual Instrumentation System;
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