Non-symmetry factor computation in three-phase systems

Author

Matica, L.M. ; Silaghi, H. ; Kovendi, Z. ; Costea, Cristinel

Author_Institution

Fac. of Electr. Eng. & Inf. Technol., Univ. of Oradea, Oradea, Romania

fYear

2013

fDate

23-25 May 2013

Firstpage

1

Lastpage

5

Abstract

In electrical networks, the presence of non-symmetrical situation determines several effects. A consequence of non-symmetrical situations is the significant value of non-symmetry power. The computation of non-symmetry factor is a method for estimate the influence of non-symmetry power, in three-phase systems, (similar with estimation of reactive power influence by power factor value). The paper describes the computation procedure of non-symmetry factor, considering sequence components, (theorem Fortesque). The value of non-symmetry factor, as we describe, may characterize the non-symmetrical situations. Also, the paper analyzes the principle that sources of the negative and zero sequence components are the non-symmetric consumers.

Keywords

power factor; electrical networks; negative sequence components; nonsymmetric consumers; nonsymmetrical situations; nonsymmetry factor computation; nonsymmetry power; three-phase systems; zero sequence components; Analytical models; Estimation; Generators; Graphical models; Impedance; Reactive power; Voltage measurement; non-symmetric consumers; non-symmetrical situations; non-symmetry factor; non-symmetry power; sources of the negative and zero sequence components;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Topics in Electrical Engineering (ATEE), 2013 8th International Symposium on

Conference_Location

Bucharest

Print_ISBN

978-1-4673-5979-5

Type

conf

DOI

10.1109/ATEE.2013.6563379

Filename

6563379