Effect of load power factor on voltage stability of distribution substation

Author

Li Lin ; Junbing Wang ; Wenzhong Gao

Author_Institution

State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China

fYear

2012

fDate

22-26 July 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, voltage stability of the distribution substation is analyzed by simulation. It is shown that the operating voltage of the distribution substation bus is cross point of the power grid transmission characteristics and the load reactive power - voltage characteristics. The research results are that in the case of constant load active power, the decrease of the load power factor will have two effects on voltage stability: the first is the rise of reactive power - voltage characteristics of load, while the second is the drop of reactive power - voltage characteristics of power grid. So the combined effect will cause a decline in voltage stability of the distribution substation.

Keywords

power distribution control; power factor; power grids; power system stability; power transmission control; reactive power; substations; voltage regulators; constant load active power; distribution substation; load power factor effect; load reactive power drop; power grid transmission characteristics; voltage stability characteristics; Educational institutions; Power grids; Power system stability; Reactive power; Stability criteria; Substations; Power factor; Power grid; Substation; Voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2012 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4673-2727-5

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PESGM.2012.6345690

Filename

6345690