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Abstract The influence of flux decay dynamics, especially the dynamics during a fault, on transient stability is studied in this paper based on energy function. Some of the nonlinear excitation control strategies which aim at injecting additional damping into the post-fault systems may reduce the critical clearing times (CCTs). The comparison of different flux decay dynamics in the fault-on condition is demonstrated to explain the change of CCTs. The reason is illustrated by the relationship
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Received: 09 June 2009
Published: 04 March 2014
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2010, Vol. 25 
