Analysis of voltage stability problems in power system

Author

Bujal, Noor Ropidah ; Hasan, Amilia Emil ; Sulaiman, Marizan

Author_Institution

Electr. Eng. Dept., Merlimau Melaka Polytech., Durian Tunggal, Malaysia

fYear

2014

fDate

27-29 Aug. 2014

Firstpage

278

Lastpage

283

Abstract

Voltage stability analysis is important in power system in order to maintain the power system equilibrium. This research focuses on the voltage stability analysis of the power system feeders at distribution and transmission systems. The voltage stability analysis is carried out on the basis of single feeder comprising of two-bus system using ABCD line parameters. The feeder´s voltage in distribution and transmission system has been monitored at lagging and leading load conditions for various power factors. Hence, the active power-voltage (PV) curve and reactive power-voltage (QV) are used as tools to monitor the voltage stability at feeders. The plotting methods for PV and QV curves have been improved by using MATLAB applications software. The voltage critical, voltage regulation, voltage gap and line current are monitored at each load power factor.

Keywords

mathematics computing; power engineering computing; power factor; power system stability; ABCD line parameters; MATLAB applications software; PV curve; QV curve; active power-voltage curve; distribution systems; lagging load conditions; leading load conditions; line current; plotting methods; power factors; power system equilibrium; power system feeders; reactive power-voltage; transmission systems; two-bus system; voltage critical; voltage gap; voltage regulation; voltage stability analysis; PV Curve; QV Curve; Voltage Instability;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering Technology and Technopreneuship (ICE2T), 2014 4th International Conference on

Conference_Location

Kuala Lumpur

Type

conf

DOI

10.1109/ICE2T.2014.7006262

Filename

7006262