Voltage stability and economical optimization of reactive power in power systems with wind generators by harmony search method

Author

Babaei, Ebrahim ; Shahmohammadi, Sima

Author_Institution

Fac. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran

fYear

2012

fDate

15-17 May 2012

Firstpage

392

Lastpage

397

Abstract

In this paper, the voltage stability in power systems with economic dispatch (ED) problem is investigated. Also because of increasing the number of wind generators in power systems, they are considered in this investigation. For this purpose, with ED equations and equality and inequality conditions, a voltage stability index is considered. This index is considered as an inequality condition by optimization problem to guarantee the voltage stability in addition to economical optimization. Special conditions of wind generators are investigated too. Because of the complexity of this problem, harmony search method is used for solution of this optimization problem. Simulation results are presented to examine the performance of this method.

Keywords

load dispatching; optimisation; power system economics; power system stability; reactive power; search problems; ED equations; economic dispatch problem; harmony search method; inequality condition; optimization problem; power systems; reactive power economical optimization; reactive power voltage stability; voltage stability index; wind generators; Analytical models; Equations; Indexes; Economic dispatch; harmony search method; voltage stability; wind generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2012 20th Iranian Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4673-1149-6

Type

conf

DOI

10.1109/IranianCEE.2012.6292390

Filename

6292390