A bstract: This paper presents a consideration on the accuracy of various types of approximate models of synchronous machines for power system transient stability simulations. Synchronous machines are, in general, expressed by the d, q axis Park model in the simulations. However, there are several types of approximate models. In the first half of this paper, accuracy of 4 models is evaluated by performing numerical simulations for three phase short circuit fault in a model system. In the second half of the paper, accuracy of the standard model with one q-axis damper circuit and the detailed model with two q-axis damper circuits is discussed for analyzing the transient stability of turbine generators with solid rotors.
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Tamura et al. (2001) studied this question.
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