Control of parallel EHV interconnection lines using Phase Shifting Transformers

Author

El Hraiech, Anas ; Ben-Kilani, Khadija ; Elleuch, Mohamed

Author_Institution

Ecole Nat. d´Ing. de Tunis, Univ. de Tunis El Manar, El Manar, Tunisia

fYear

2014

fDate

11-14 Feb. 2014

Firstpage

1

Lastpage

7

Abstract

Power systems interconnected with Extra High Voltage tie-lines are prone to unscheduled power flows. This paper investigates how to control these flows in parallel EHV interconnection lines using Phase Shifting Transformers (PST). A phase-angle regulated PST placed in a longitudinal transmission network is modeled. A real system application concerns the Tunisian-Algerian 400kV/225kV parallel interconnections. Different placement locations, operating scenarios, and control options are tested. The PST based solutions are discussed in terms of power flow control, voltage support and economic aspects.

Keywords

load flow control; power cables; power system control; power system interconnection; power transformers; power transmission control; power transmission lines; Tunisian-Algerian parallel interconnections; extra high voltage tie-lines; longitudinal transmission network; parallel EHV interconnection line control; phase shifting transformers; phase-angle regulated PST; power flow control; power system interconnection; unscheduled power flows; voltage 225 kV; voltage 400 kV; voltage support; Phasor measurement units; EHV; Interconnection network; phase shifting transformer;

fLanguage

English

Publisher

ieee

Conference_Titel

Multi-Conference on Systems, Signals & Devices (SSD), 2014 11th International

Conference_Location

Barcelona

Type

conf

DOI

10.1109/SSD.2014.6808829

Filename

6808829