Summary:
This study presents a novel high-speed de-excitation system for brushless synchronous machines, where the de-excitation time constant can reach values of several seconds. In these conditions, despite the proper operation of the protection system, the slow de-excitation time constant may produce severe damage in the event of an internal short circuit. With the proposed system, a rapid de-excitation is achieved by inserting a resistance in the field circuit, obtaining a response similar to that in machines with static excitation. This system has been validated through computer simulations and experimental laboratory tests.
JCR Impact Factor and WoS quartile: 1,562 - Q2 (2012); 1,500 - Q3 (2023)
DOI reference:
https://doi.org/10.1049/iet-epa.2011.0088
Published on paper: March 2012.
Citation:
C.A. Platero, M. Redondo, F. Blázquez, P. Frías, High-speed de-excitation system for brushless synchronous machines. IET Electric Power Applications. Vol. 6, nº. 3, pp. 156 - 161, March 2012.
