An analysis of distribution system power quality problems resulting from load unbalance and harmonics

Author

Bachry, A. ; Styczynski, Z.A.

Author_Institution

Otto-von-Guericke Univ., Magdeburg, Germany

Volume

2

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

763

Abstract

The analysis of considerable power quality problems in a distribution network is presented in this article. The problems with load unbalance and the resulting overload in the neutral wire are illustrated by on-site measurements. The inherent structure theory of networks is applied to expose possible risks for reliable system operation involving eigenvalue analysis of the system admittance matrix. This method allows for the system´s nodes sensitivity detection to the low frequency conducted disturbances. The approach is then discussed considering its applicability to solve important power quality problems within the presented distribution network. Advisory comments regarding power quality aspects in a distribution system are given.

Keywords

eigenvalues and eigenfunctions; matrix algebra; power distribution reliability; power supply quality; sensitivity analysis; admittance matrix; distribution system; eigenvalue analysis; load harmonics; load unbalance; nodes sensitivity detection; on-site measurements; power quality; structure theory; system operation reliability; Admittance; Eigenvalues and eigenfunctions; Frequency; Harmonic analysis; Power quality; Power system harmonics; Power system reliability; Reliability theory; Risk analysis; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335371

Filename

1335371