A Simple Design and Simulation of Full Bridge LLC Resonant DC-DC Converter for Pv Applications

This paper deals with the design and simulation of full bridge LLC resonant converter suitable for photovoltaic applications. LLC converter has several desired features such as high efficiency, low electromagnetic interference (EMI) and high power density. This paper provides a detailed practical design aspect of full bridge LLC resonant converter. The LLC converter is implemented with a full-bridge on the primary side and a full-bridge rectifier on the secondary side. It includes designing the transformer turns ratio and selecting the components such as resonant inductor, resonant capacitor and magnetizing inductor. Also performance parameters such as voltage gain and output voltage ripple are calculated. Simulation of LLC resonant converter is carried out using MATLAB / SIMULINK and the results are verified.

[1]  Robert L. Steigerwald.  A comparison of half-bridge resonant converter topologies , 1987 .

[2]  Yan Liang,et al.  Optimal design methodology for LLC resonant converter , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[3]  A. Abramovitz,et al.  A design methodology of resonant LLC DC-DC converter , 2011, Proceedings of the 2011 14th European Conference on Power Electronics and Applications.

[4]  Hang-Seok Choi,et al.  Design Consideration of Half-Bridge LLC Resonant Converter , 2007 .

[5]  A.K. Upadhyay,et al.  Analysis and design of a half-bridge parallel resonant converter operating above resonance , 1988, Conference Record of the 1988 IEEE Industry Applications Society Annual Meeting.

[6]  Alpa Gopiyani,et al.  A novel half-bridge LLC Resonant Converter for high power DC power supply , 2010, 2010 Conference Proceedings IPEC.

[7]  Vinod Patel,et al.  A closed-loop control of high power LLC Resonant Converter for DC-DC applications , 2011, 2011 Nirma University International Conference on Engineering.

[8]  V. Rajasekaran,et al.  Design and implementation of LLC resonant half bridge converter , 2012, IEEE-International Conference On Advances In Engineering, Science And Management (ICAESM -2012).