Advanced Series Compensation made up of thyristor controlled reactors and fixed capacitors takes full advantage from high speed operation of power electronic devices. In this paper, active power flow regulation on a connection between electric areas is examined, so as to wheel exchanges between utilities, improve transmission capacity, and avoid connection overloads; moreover, a control system is proposed to improve damping of electromechanical oscillations between neighbouring areas. Both interventions affect, in different time frames, the connection reactance through thyristor controlling facilities. The two control loops have been tested on sample power systems using a transient stability program.
Series compensation through static devices for active power control and oscillation damping
DENEGRI, GIO BATTISTA;INVERNIZZI, MARCO;MORINI, ANDREA
1994-01-01
Abstract
Advanced Series Compensation made up of thyristor controlled reactors and fixed capacitors takes full advantage from high speed operation of power electronic devices. In this paper, active power flow regulation on a connection between electric areas is examined, so as to wheel exchanges between utilities, improve transmission capacity, and avoid connection overloads; moreover, a control system is proposed to improve damping of electromechanical oscillations between neighbouring areas. Both interventions affect, in different time frames, the connection reactance through thyristor controlling facilities. The two control loops have been tested on sample power systems using a transient stability program.
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