Title :
Application of simultaneous active and reactive power modulation of SMES unit under unequal α-mode for power system stabilization
Author :
Rabbani, M.G. ; Devotta, J.B.X. ; Elangovan, S.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
fDate :
5/1/1999 12:00:00 AM
Abstract :
A simple and novel control strategy for damping electromechanical oscillations through control of power converter firing angles α 1 and α2 of a superconducting magnetic energy storage (SMES) unit is proposed. Both active and reactive power modulations are used under unequal α-mode of operation. The choice of unequal mode is discussed in detail. The gains of the proposed SMES controller are determined once offline depending on the power system and the rating of the SMES unit. Simulation results show that the SMES unit can effectively suppress power system oscillations by utilizing its active and reactive power modulation capabilities. The control algorithm is simple and its realization will require very little hardware
Keywords :
control system analysis computing; control system synthesis; damping; oscillations; power control; power convertors; power system analysis computing; power system control; power system stability; superconducting magnet energy storage; SMES unit; computer simulation; control algorithm; control design; control simulation; electromechanical oscillations damping; power converter firing angles; power modulation; power system oscillations suppression; power system stabilization; superconducting magnetic energy storage; unequal α-mode; Control systems; Damping; Inductors; Power system control; Power system faults; Power system simulation; Power systems; Reactive power; Samarium; Superconducting magnetic energy storage;
Journal_Title :
Power Systems, IEEE Transactions on
