Monday 20 September 2010

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON POWER SYSTEMS
Transactions ID Number: 52-383
Full Name: Mona Eskander
Position: Professor
Age: ON
Sex: Female
Address: Electronics Research Institute, Tahrir street,Dokki,Cairo
Country: EGYPT
Tel: +202-33310553
Tel prefix:
Fax: +202-33351631
E-mail address: eskandermona@yahoo.com
Other E-mails: eskander@eri.sci.eg
Title of the Paper: Fuzzy Logic-Based Unified Power Quality Controller for Enhancement of Power System Stability
Authors as they appear in the Paper: Sanaa I. Amer , Maged N. F. Nashed, Mona N. Eskander
Email addresses of all the authors: amersanaa@yahoo.com,magederi@yahoo.com,eskandermona@yahoo.com
Number of paper pages: 11
Abstract: The paper deals with a Unified Power Quality Conditioner (UPQC), which aims at the integration of series and shunt active power filters for enhancement of power system stability. The proposed UPQC consists of two independent active filters, each with its own dc link, a device known as "OPEN UPQC". Power system stability investigated includes fast recovery of grid voltage after voltage sags, voltage swells, ground faults, and frequency oscillations. The OUPQC is connected to a low voltage grid supplying industrial loads, mainly AC drives. Two controllers are proposed for operating the UPFC, namely a PI controller and fuzzy logic controller FLC. The fault ride through (FRT) ability of the FLC-based UPQC is investigated and compared with the FRT of a PI-based UPQC. This scheme also helps in maintenance cost saving and individual dealing with each customer. The comparison for each type of faults considered included time taken for fault recovery, harmonic level in wavef!
orms, active and reactive power consumption, and system power factor. Also, switching the positions of the shunt and series devices is investigated to conclude the optimum connection status.
Keywords: Voltage dip, Unified power quality controller,power system,permanent magnet drive,fuzzy logic controller,PI controller
EXTENSION of the file: .pdf
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How Did you learn about congress: power system,electric drives,control
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