Damping of subsynchronous resonance using excitation controllers and static VAR compensators: A comparative study

Journal Article · Mon Feb 29 23:00:00 EST 1988 · IEEE Trans. Energy Conver.; (United States)

DOI:https://doi.org/10.1109/60.4192· OSTI ID:6931596

Wang, L; Hsu, Y Y

This paper presents the results of a comparative study on the application of two countermeasures, i.e., the excitation controller and the static VAR compensator (SVC), for the damping of sub-synchronous resonance (SSR). In order to stabilize all the SSR modes, a unified approach based on modal control theory is proposed for the design of the excitation controller and the SVC, which are essentially dynamic output feedback compensators. The two damping schemes differ from each other in the way they modulate the reactive power flow in the system in order to damp out the subsynchronous oscillations. To demonstrate the effectiveness of the proposed damping schemes under disturbance conditions, time domain simulations based on nonlinear system model are also performed. The relative merits of the two countermeasures are compared with respect to their validities under various loading conditions and different degrees of series compensations and their capabilities to expand the stable region on the Re-Xc plane.

• Research Organization: Dept. of Electrical Engineering, National Taiwan Univ., Taipei (TW)
• OSTI ID: 6931596
• Journal Information: IEEE Trans. Energy Conver.; (United States), Journal Name: IEEE Trans. Energy Conver.; (United States) Vol. 3:1; ISSN ITCNE
• Country of Publication: United States
• Language: English

Related Subjects

657000* -- Theoretical & Mathematical Physics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS
990230 -- Mathematics & Mathematical Models-- (1987-1989)
BEAM DYNAMICS
COMPARATIVE EVALUATIONS
DAMPING
DESIGN
EXCITATION SYSTEMS
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
OSCILLATIONS
RESONANCE
SYNCHRONIZATION
SYNCHROTRON OSCILLATIONS