Author(s)

N. Madhanakkumar¹, T. S. Sivakumaran²

¹Department of Electrical and Electronics Engineering, Anna University, Chennai, India.
²Department of Electrical and Electronics Engineering, Arunai College of Engineering, Tiruvannamalai, India.

In this paper, the modified LCC type of series-parallel Resonant Converter (RC) was designed and state-space modeling analysis was implemented. In this proposed converter, one leg of full bridge diode rectifier is replaced with Synchronous Rectifier (SR) switches. The proposed LCC converter is controlled using frequency modulation in the nominal state. During hold-up time, the SRswitches control is changed from in-phase to phase-shifted gate signal to obtain high DC voltage conversion ratio. Furthermore, the closed loop PI and fuzzy provide control on the output side without decreasing the switching frequency. The parameter such as conduction loss on primary and secondary side, switching loss, core and copper also reduced. Simultaneously, the efficiency is increased about 94.79 is realized by this scheme. The proposed converter with an input of 40 V is built to produce an output of 235 V with the help of ZVS boost converter [1] even under line and load disturbances. As a comparison, the closed loop fuzzy controller performance is feasible and less sensitive than PI controller.

LCC Resonant Converter, Synchronous Rectifier (SR), Fuzzy Controller, PI Controller, State-Space Modeling

Madhanakkumar, N. and Sivakumaran, T. (2016) Performance Analysis of PI and Fuzzy Control for Modified LCC Resonant Converter Incorporating Boost Converter. Circuits and Systems, 7, 835-848. doi: 10.4236/cs.2016.76072.