Stabilizing subsynchronous resonance using transmission current feedback

Journal Article · Sat Nov 01 04:00:00 EST 1986 · IEEE Trans. Power Syst.; (United States)

DOI:https://doi.org/10.1109/TPWRS.1986.4335012· OSTI ID:7071156

Chen, C; Wasynczuk, O; Anwah, N A

A method of counteracting torsional interactions in series compensated power systems is described. The method involves the measurement of the transmission system currents from which the subsynchronous components which produce torsional interactions are extracted. A method of accomplishing this is described in the paper. Once extracted, these signals are subsequently amplified by a controllable current source and injected into the generator bus so as to cancel the original subsynchronous components which would otherwise produce torsional interactions. The IEEE first benchmark system is used to investigate the effectiveness of this approach. A small displacement (eigenvalue) analysis of this system is provided in which it is shown that torsonial interactions are prevented. Additionally, the generalized Nyquist method is used to characterize phase and gain margins associated with the feedback circuitry. Finally, the time domain behavior of the benchmmark system is investigated by computer simulation.

• Research Organization: School of Electrical Engineering, Purdue Univ., West Lafayette, IN 47907
• OSTI ID: 7071156
• Journal Information: IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. PWRS-1:4; ISSN ITPSE
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
290100 -- Energy Planning & Policy-- Energy Analysis & Modeling
296000* -- Energy Planning & Policy-- Electric Power
AMPLIFICATION
BENCHMARKS
COMPUTERIZED SIMULATION
CURRENTS
DIAGRAMS
EIGENVALUES
ELECTRIC CURRENTS
ELECTRIC GENERATORS
ELECTRIC UTILITIES
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
FEEDBACK
LOAD MANAGEMENT
MANAGEMENT
NYQUIST DIAGRAMS
POWER SYSTEMS
POWER TRANSMISSION
PUBLIC UTILITIES
RESONANCE
SIGNALS
SIMULATION
STABILIZATION
TIME DEPENDENCE
TORSION