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Hybrid control of DC-DC series resonant converters: The direct piecewise affine approach
, Article IEEE Transactions on Power Electronics ; Vol. 30, issue. 3 , 2014 , p. 1714-1723 ; Tahami, F ; Karimpour, A ; Pariz, N ; Sharif University of Technology
Abstract
The control and stabilization of resonant converters are essential problems in power electronics. The conventional controller design and stability analysis for these converters are based on the linearized averaged model. Nevertheless, the state variables in resonant converters have large ac variations and the validity of the linearized average model is violated. Hence, using large signal and nonaveraged models are necessary for controller design and stability analysis. In this paper, a new hybrid controller is presented that is applicable to dc-dc series resonant converters and use neither averaging nor small signal approximation. The dc-dc resonant converters are inherently switched affine...