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Damping torsional oscillations using a SIMO static VAr controller

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2 Author(s)
S. Lee ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; C. -C. Liu

Stabilising torsional oscillations using a single input multiple output (SIMO) static VAr controller is investigated. An eigenstructure assignment technique is applied to design it. The designed controller can be easily implemented by a multiple proportion integral (MPI) controller using medium pressure turbine speed, two low pressure turbine speeds, and generator shaft speed as the feedback signals. Eigenvalue analyses under a wide range of series capacitor compensations and loading conditions, time domain simulations under a pulsed torque disturbance, and fast Fourier transform (FFT) analyses for system behaviour are all performed to demonstrate the effectiveness of the proposed controller.<>

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IEE Proceedings C - Generation, Transmission and Distribution  (Volume:140 ,  Issue: 6 )