Journal of Electrical Engineering : Volume 16 / 2016 - Edition : 4

VOLTAGE STABILITY MARGIN IMPROVEMENT BY USING MULTI UPFCs

Authors:
Ali Akbar Motiebirjandi
Davood Fateh
Mohammad Abbasi
Domain:
industrial electrical power systems
Abstract:
Unified power flow controller (UPFC) is able to improve the voltage stability margin in power system. Appropriate operation of this device is depended on its proper placement. Different papers have discussed about the placement of UPFC for improving the voltage stability margin. In most of these papers, the placement of one UPFC has addressed. In this research, a method for placement of multi UPFCs has introduced and the effects of each UPFCs has analyzed to increase voltage stability margin. For this purpose, power system loading factor has been applied to locate UPFCs and results of one or multi UPFCs effects has presented by drawing voltage profile. The proposed method has applied on IEE 5-bus and IEEE 30-bus standard systems and simulation results confirm the increase of voltage stability margin in power system.
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