Transient and Dynamic Average-Value Modeling of Synchronous Machine Fed Load-Commutated Converters

Keith Corzine, Missouri University of Science and Technology
S. D. Sudhoff
H. J. Hegner
D. E. Delisle

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A new average-value model of a synchronous machine fed load-commutated converter is set forth in which the stator dynamics are combined with the DC link dynamics. This model is shown to he extremely accurate in predicting system transients and in predicting frequency-domain characteristics such as the impedance looking into the synchronous machine fed load-commutated converter. The model is verified against a detailed computer simulation and against a hardware test system, thus providing a three-way comparison. The proposed model is shown to be much more accurate than models in which the stator dynamics are neglected