Effect of time variation of system impedance and voltage harmonics on LC compensation for nonlinear loads

Author

Aziz, M.M.A. ; Zobaa, A.F. ; Ibrahim, A.M. ; Monem, A.M.A.

Author_Institution

Electr. Power & Machines Dept., Cairo Univ., Giza, Egypt

fYear

2004

fDate

12-15 Sept. 2004

Firstpage

77

Lastpage

82

Abstract

The goal of this paper is to determine the effect of the time variation of system impedance and voltage harmonics on the value of optimum LC compensator for power factor at buses nonsinusoidal voltage. The equivalent load impedance is also considered time variant and assumed to contain a large proportion of induction motors. Optimization minimizes the transmission loss and maximizes the power factor. The performance of the obtained compensator is discussed by means of numerical examples.

Keywords

electric impedance; induction motors; load (electric); optimisation; power factor; power system harmonics; reactive power; LC compensation; bus nonsinusoidal voltage; equivalent load impedance; induction motors; nonlinear loads; optimization; power factor; reactive power; system impedance; transmission loss minimisation; voltage harmonics; Current supplies; Fluorescence; Harmonic distortion; Impedance; Induction motors; Power system harmonics; Propagation losses; Reactive power; Variable speed drives; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2004. 11th International Conference on

Print_ISBN

0-7803-8746-5

Type

conf

DOI

10.1109/ICHQP.2004.1409332

Filename

1409332