Title :
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
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;
Conference_Titel :
Multi-Conference on Systems, Signals & Devices (SSD), 2014 11th International
Conference_Location :
Barcelona
DOI :
10.1109/SSD.2014.6808829
