Dynamic performance of field-regulated synchronous machines

1 January 1974

journal article
Published by Institution of Engineering and Technology (IET) in Proceedings of the Institution of Electrical Engineers

Vol. 121 (12) , 1522-1528
https://doi.org/10.1049/piee.1974.0316

Abstract

The paper analyses the influence of various types of field regulators on the dynamic performance of synchronous generators. Both conventional and dual-excitation generators are considered, with basic controls provided by voltage and angle regulators, which may have proportionate and derivative feedback. In the case of dual-excitation machines, both bus-rotor-angle and terminal-rotor-angle signals are employed in the quadrature-axis regulator.Stability is initially defined by computed regulation curves, and additional information is then obtained by calculating the variations of the synchronising- and damping-torque coefficients (T_s and T_D) with regulator gain. These graphs are superimposed on the regulation curves, to show how T_s and T_D determine the dynamic stability of the machine, and to illustrate the underlying reasons for stability.

Keywords

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