This paper addresses the problem of constrained stabilization of power converters. More specifically, it deals with power converters described by either linear or bilinear discrete-time averaged models. Within the synthesis method a search for an affine state-feedback control law is performed, such that a predefined polytopic subset of the state-space becomes contractive for the closed-loop system. The method is further extended to piecewise affine controller synthesis over a non-convex domain of attraction. The controller synthesis problem is formulated as a linear program and can be efficiently solved even for bilinear models. The application of the method for a buck and a buck-boost converter, respectively, is illustrated on two case studies. Both simulations results and real-life experimental data are provided. Several suggestions regarding the hardware implementation of the controllers are given.
|Title of host publication||Proceedings of the 2011 IEEE International Conference on Control Applications (CCA), 28-30 September 2011, Denver, Colorado|
|Place of Publication||Piscataway|
|Publisher||Institute of Electrical and Electronics Engineers|
|Publication status||Published - 2011|