Paper Title:

Fuzzy Enhancement of Power System Stability Using FACTS Devices

Periodical Applied Mechanics and Materials (Volumes 110 - 116)
Main Theme Mechanical and Aerospace Engineering, ICMAE2011
Chapter Chapter 23: Computer-Aided Design, Manufacturing, and Engineering
Edited by Wu Fan
Pages 5200-5205
DOI 10.4028/www.scientific.net/AMM.110-116.5200
Citation J. Hamad et al., 2011, Applied Mechanics and Materials, 110-116, 5200
Online since October 2011
Authors J. Hamad, K. El-Bahrawy, R. Sharkawy
Keywords FACTS, Fuzzy System, LFI, Voltage Stability, VPI
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This paper investigates voltage stability of the power system during steady state and transient conditions. The voltage stability enhancement is achieved by utilizing FACTS devices at the best location of the system. The weakest bus in the system is the best location to implement shunt compensation device. In this paper, the weakest buses are identified via a fuzzy technique that utilizes two critical indices: Line Flow Index (LFI) and Voltage Profile Index (VPI) during normal and fault conditions. These indices are used to evaluate Criticality Index (CI) using Fuzzy rules, and thus, the system buses are ranked. Remedial actions are discussed to enhance the power system voltage stability by using FACTS devices (SVC and STATCOM) at the most vulnerable system buses. The results of this study show that the (STATCOM) performance is preferable to that of the (SVC) during fault conditions.

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