A Study on Management Standards of Total Harmonics Distortion(THD)measured from UPS - Jeong,Unho Department of Electrical and ElectronicEngineering Graduate School,Dongshin University

The purpose of this paper is to describe UPS(Uninterruptible Power Supply) in a comprehensive measure THD(Total Harmonic Distortion) and compared with domestic and international management standards in harmonics, harmonics reduction measures by analyzing the appropriate UPS technology. Harmonics generated by the UPS. measurements of national standards was confirmed appropriate, UPS comprehensive harmonic currents measured range THD-I limits for national standards, the reference by KSC 4310, THD-V for domestic not based on the site was confirmed. Therefore,The IEEE(Institute of   Electrical and Electronics Engineers)Std.519 i applied in this paper as a reference for domestic standards on THD-V limits management.In recent years,according to integration of KSC standards in to IEC,UPS standards are being revised as KSC IEC 62040,but there are still no regulations for THD-V and THD-Iabout UPS causing confusions in some aspects.Accordingly,in the KSC IEC management standards to be amended which are related to UPS,I consider the introduction of the integrated regulatory limits on THD-V andTHD-I which are currently mixed to be very urgent. Therefore In this paper, we measured the THD-I and THD-V for UPS domestic and international management standards and harmonic comparison and analysis results were as follows.
LINK
http://www.mediafire.com/view/zfro9hz339iatjb/A_Study_on_Management_Standards_of_Total_Harmonic_Distortion%28THD%29_measured_from_UPS.pdf