Title :
Damping subsynchronous resonance using a SIMO shunt reactor controller
Author :
Lee, Shun ; Liu, Chun-Chang
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
8/1/1994 12:00:00 AM
Abstract :
Stabilizing torsional oscillations using a single-input multiple-output (SIMO) shunt reactor controller is investigated in this paper. An eigenstructure assignment technique is applied to design this controller. The designed controller can be easily implemented by a multiple-proportional-integral (MPI) controller using the medium pressure turbine speed, the two low pressure turbine speeds, and the generator shaft speed as feedback signals. Eigenvalue analyses under different operating conditions and a wide range of series compensation degrees, time domain simulations under a pulsed torque disturbance, and fast-Fourier-transform (FFT) analyses for system behavior are all performed in order to demonstrate the effectiveness of the proposed controller
Keywords :
compensation; controllers; damping; eigenvalues and eigenfunctions; fast Fourier transforms; feedback; power system control; reactors (electric); time-domain analysis; two-term control; SIMO shunt reactor controller; eigenstructure assignment technique; fast-Fourier-transform; feedback signals; generator shaft speed; low pressure turbine speeds; medium pressure turbine speed; multiple-proportional-integral controller; pulsed torque disturbance; series compensation degrees; single-input multiple-output; subsynchronous resonance damping; time domain simulations; torsional oscillations stabilisation; Damping; Inductors; Performance analysis; Pressure control; Resonance; Shunt (electrical); Signal design; Signal generators; Time series analysis; Turbines;
Journal_Title :
Power Systems, IEEE Transactions on
