LLC resonant DC-DC converters are becoming in-. creasingly popular due to their ability to work with zero voltage. switching (ZVS) feature. The reduction in switching power losses,. especially in high frequencies, greatly enhances the efficiency of. these converters in comparison with conventional PWM boost. converters. This paper presents theoretical details for modeling the. LLC resonant converter, by which its characteristic and dynamic. behavior can be analyzed. To obtain an accurate model, the. extended describing function concept is used and the approximate. nonlinear model derived. Then the derived model is linearized in. vicinity of the steady state operating point and the state space. matrices of the system are obtained. The accuracy and validity of. the model is then verified using MATLAB\/Simulink.

Linearization of LLC Resonant Converter Model Based on Extended Describing Function Concept

BUCCELLA, CONCETTINA;CECATI, Carlo;PEPE, PIERDOMENICO;
2013

Abstract

LLC resonant DC-DC converters are becoming in-. creasingly popular due to their ability to work with zero voltage. switching (ZVS) feature. The reduction in switching power losses,. especially in high frequencies, greatly enhances the efficiency of. these converters in comparison with conventional PWM boost. converters. This paper presents theoretical details for modeling the. LLC resonant converter, by which its characteristic and dynamic. behavior can be analyzed. To obtain an accurate model, the. extended describing function concept is used and the approximate. nonlinear model derived. Then the derived model is linearized in. vicinity of the steady state operating point and the state space. matrices of the system are obtained. The accuracy and validity of. the model is then verified using MATLAB\/Simulink.
978-1-4799-1134-9
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/89149
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