...Vahid Behjat; Abolfazl Vahedi Purpose Interturn winding faults, one of the most important causes of power transformers failures, cannot be detected by existing detection methods until they develop into high‐level faults with more severe damage to the transformer. The purpose of this paper...

... of control techniques. Design/methodology/approach The methodology is based on a mixed use of Laplace transform and z‐transform. The expressions of variables of the set of equations, characteristic of a DC‐DC converter, are first evaluated in the Laplace domain for the generic switching interval...

... if and only if: Equation 29 © Emerald Group Publishing Limited 2009 Systems and control theory Transforms The most popular models of two‐dimensional (2D) linear systems are the models introduced by Roesser (1975) , Fornasini and Marchesini (1976, 1978) and Kurek (1985...