Stabilizing torsional oscillations using a shunt reactor controller

Journal Article · Sun Sep 01 04:00:00 EDT 1991 · IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/60.84309· OSTI ID:5581433

Wang, L; Lee, C H ^[1]

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1. Inst. of Electrical Engineering, National Cheng Kung Univ., Tainan 70101 (TW)

This paper presents the results of a study on the application of shunt reactors for the damping of torsional oscillations that occur in a power system containing series-capacitor compensation. The IEEE Second Benchmark Model, system-1 is employed to investigate the benefits of the utilization of modulated reactive power in suppressing unstable SSR modal interactions. A set of shunt reactor is connected to the generator bus of the affected synchronous machine whose shaft is directly coupled to the turbine system of the benchmark model. In order to stabilize all the torsional modes, a unified approach based on modal control theory is proposed for the design of a shunt reactor controller, which is essentially a dynamic output compensator. For demonstrating the effectiveness of the damping enhanced by the proposed scheme, eigenvalue analysis for different loading conditions, and sensitivity analysis for controller parameters are performed. In addition, dynamic responses of the nonlinear system under a three-phase short-circuit fault at infinite bus are also carried out. It can be concluded from the simulation results that the proposed shunt reactor control scheme can effectively suppress the torsional oscillations.

• OSTI ID: 5581433
• Journal Information: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Energy Conversion (Institute of Electrical and Electronics Engineers); (United States) Vol. 6:3; ISSN ITCNE; ISSN 0885-8969
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
240300 -- Power Transmission Lines & Cables-- (1990-)
CONFIGURATION
CONTROL THEORY
DAMPING
DESIGN
EIGENVALUES
ELECTRICAL EQUIPMENT
EQUIPMENT
EVALUATION
OSCILLATIONS
POWER SYSTEMS
POWER TRANSMISSION
SENSITIVITY ANALYSIS
SHUNT REACTORS
STABILITY