A comparison of performance indexes in DC-DC converters under different stabilizing state-dependent switching laws

• Autor(a) principal: Yoshimura, Victor L.
• Data de Publicação: 2011
• Outros Autores: Assunção, Edvaldo [UNESP], Teixeira, Marcelo C. M. [UNESP], Mainardi, Edson I. [UNESP]
• Tipo de documento: Artigo de conferência
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1109/COBEP.2011.6085200; http://hdl.handle.net/11449/73091
• topic: Control of DC-DC converters; hybrid systems; overshoot; response time; state-dependent switching law; Comparison of performance; Continuous conduction mode; Equilibrium point; Performance indices; State laws; State-dependent; Switched affine systems; Switching law; DC power transmission; Hybrid systems; Power electronics; Response time (computer systems); Switching; Switching networks; Switching systems; DC-DC converters

This paper deals with the problem of establishing stabilizing state-dependent switching laws in DC-DC converters operating at continuous conduction mode (CCM) and comparing their performance indexes. Firstly, the nature of the problem is defined, that is, the study of switched affine systems, which may not share a common equilibrium point. The concept of stability is, therefore, broadened. Then, the central theorem is proposed, from which a family of switching laws can be derived, namely the minimum law and the hold state law. Some of these are proved to stabilize the basic DC-DC converters and then, their performances are compared to another law, from a previous work, by simulation, where a great reduction in overshoot is obtained. © 2011 IEEE.