Some Observations on Definitions of Voltage Unbalance

Author

Singh, Asheesh K. ; Singh, G.K. ; Mitra, R.

Author_Institution

Motilal Nehru Nat. Inst. of Technol., Allahabad

fYear

2007

fDate

Sept. 30 2007-Oct. 2 2007

Firstpage

473

Lastpage

479

Abstract

In this paper an analysis of five different definitions of voltage unbalance developed by various power communities (CIGRE, NEMA, IEEE, and IEC) is presented, in order to understand their performance and difference among them. The purpose of this work is to analyze and quantify the voltage unbalance, so that these results may become useful to minimize the harmful effects of voltage unbalance. To quantify the voltage unbalance, five existing voltage unbalance definitions are calculated and their numerical values are used in analyzing the behavior of these definitions for the unit change in their magnitude and angle of voltage phasors.

Keywords

power supply quality; harmful effects; power communities; voltage phasors angle; voltage unbalance; Clocks; Communities; Frequency; IEC; Impedance; Performance analysis; Power quality; Power supplies; Power systems; Voltage control; Definitions of voltage unbalance; over-voltage; phase angle movement; sequence voltage component; source voltage unbalance; under-voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Symposium, 2007. NAPS '07. 39th North American

Conference_Location

Las Cruces, NM

Print_ISBN

978-1-4244-1726-1

Electronic_ISBN

978-1-4244-1726-1

Type

conf

DOI

10.1109/NAPS.2007.4402352

Filename

4402352