Influence of double excitation AC/DC in the reactive power demand of 3-phase transformers
MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, 42., Proceedings..., Vols 1 and 2. New York: IEEE, p. 727-730, 1999.
Rossi, Jose Carlos
Oliveira, Luis Carlos Origa de
Ferreira, Marco A S
In this work it is discussed the performance of the reactive power demand in three-leg transformer core and three-phase transformer bank, under different conditions of AC/DC double excitation. In order to analyse the influence of double excitation in reactive power theoretically a mathematical model was developed considering the mutual coupling between phases and the magnetic nonlinearity. The validity of the proposed model is verified by means of the experimental and simulated results.