This paper proposes a new auxiliary turbine torsional oscillation damping controller (TTODC) for static var compensator (SVC) to dampen out subsynchronous oscillations in power systems containing series compensated transmission lines. A new TTODC algorithm on the basis of synchronized phasor measurements received from phasor measurement units (PMUs) is presented. The idea of using remote signals obtained from PMU to dampen subsynchronous resonance (SSR) presented, too. An auxiliary TTODC is proposed for a SVC, using the generator rotor speed deviation signal as the stabilizing and remote signal to dampen subsynchronous oscillations. The performance of the controller is verified in a detailed nonlinear system considering eigenvalue analysis and transient simulations. Sturdiness of the controller is examined by applying the disturbances in the system that causes significant changes in generator's operating point. The IEEE second benchmark (SBM) model is used for the analysis and the SVC is simulated using the power system blockset (PSB) in the matlab/simulink environment.
Application of Turbine Torsional Oscillation Damping Controller to Static Var Compensator
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 24, 2014; final manuscript received January 1, 2015; published online March 31, 2015. Editor: David Wisler.
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Ghorbani, A., and Arablu, M. (October 1, 2015). "Application of Turbine Torsional Oscillation Damping Controller to Static Var Compensator." ASME. J. Eng. Gas Turbines Power. October 2015; 137(10): 102501. https://doi.org/10.1115/1.4030068
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