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This paper presents a generalized excitation control design that ensures not only a desired damping of the critical electromechanical modes of oscillation but also the zeroing of the terminal voltage error independent of terminal voltage excursions. The excitation system consists of a compensation transfer function utilizing the machine speed or terminal frequency and/or electrical power. A comparison of the proposed design with a conventional excitation system control indicated its effectiveness in enhancing small scale as well as large scale system stability.
Date of Publication: May 1984