A MATLAB/SIMULINK model to study the performance of the VFT for the interconnection of weak and strong AC grids

Author

El Din, Ahmed Hossam ; Abdullah, Mohamed Ashraf ; Ibrahim, Eng Mona

Author_Institution

Dept. of Electr. Eng., Univ. of Alexandria, Alexandria, Egypt

fYear

2011

fDate

15-18 May 2011

Firstpage

1635

Lastpage

1640

Abstract

This paper represents a new model of the Variable Frequency Transformer (VFT) using MATLAB/SIMULINK. The VFT is used to connect two power systems. The simulations shown in the paper accurately represents the VFT´s dynamic characteristics. Based on this model, some further simulations are conducted to study VFT´s characteristics under fault conditions and its roles in preventing the spread of faults into the other area. The simulation results show that the VFT effectively suppresses the power oscillations between the two interconnected power systems and thus prevents the faults from spreading.

Keywords

mathematics computing; oscillations; power engineering computing; power grids; power system interconnection; power transformers; power transmission faults; AC grid interconnection; Matlab-Simulink model; VFT dynamic characteristics; fault conditions; interconnected power systems; power oscillation suppression; variable frequency transformer; DC motors; Frequency control; Induction machines; Load flow; Mathematical model; Rotors; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Machines & Drives Conference (IEMDC), 2011 IEEE International

Conference_Location

Niagara Falls, ON

Print_ISBN

978-1-4577-0060-6

Type

conf

DOI

10.1109/IEMDC.2011.5994607

Filename

5994607