Stabilizing a multimachine power system via decentralized feedback linearizing excitation control

A new controller for the generator excitation system is described that uses a combination of feedback linearizing and the observation decoupled state space. This creates a controller that can be realistically implemented using only local measurements, and whose performance is consistent with respect...

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Bibliographic Details
Published in:IEEE transactions on power systems 1993-08, Vol.8 (3), p.830-839
Main Authors: Chapman, J.W., Ilic, M.D., King, C.A., Eng, L., Kaufman, H.
Format: Article
Language:English
Subjects:
240100 - Power Systems- (1990-)
COMPUTERIZED SIMULATION
CONTROL EQUIPMENT
Control systems
ELECTRIC CONTROLLERS
ELECTRIC GENERATORS
ENERGY SYSTEMS
EXCITATION SYSTEMS
FEEDBACK
Linear feedback control systems
Power measurement
Power system control
Power system measurements
Power system modeling
Power system simulation
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
SIMULATION
STABILIZATION
State feedback
State-space methods
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Summary:A new controller for the generator excitation system is described that uses a combination of feedback linearizing and the observation decoupled state space. This creates a controller that can be realistically implemented using only local measurements, and whose performance is consistent with respect to changes in network configuration, loading and power transfer conditions. The control differs in this respect from linear constant-gain controllers such as power system stabilizers, whose characteristics can vary significantly with changes in operating conditions. The design is well-suited to a multimachine setting, in that it is not based on an infinite-bus approximation. Simulations were performed on a 38-bus reduced modelof the Northeast Power Coordinating Council system and benchmarked against simulations in which automatic voltage regulators with power system stabilizers were substituted in place of the nonlinear controls.< >
ISSN:0885-8950
1558-0679
DOI:10.1109/59.260921