Design and Control of a Bi-directional CLLC Resonant Converter for Low Voltage Energy Storage Systems

Dhakar, AK and Soni, A and Bansal, HO (2020) Design and Control of a Bi-directional CLLC Resonant Converter for Low Voltage Energy Storage Systems. In: 17th IEEE India Council International Conference (INDICON-2020), December 11-13, 2020, NSUT, New Delhi, India.

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Abstract

This paper presents the design of a bi-directional CLLC converter with an Integrated transformer for energy storage systems (ESS) applications (48 V batteries). As the distributed energy generation and storage is gaining momentum it Is required to have ESS that can regulated the power bi-directionally, presently the ESS are bulky in size, to enhance the power density and converter efficiency, an integrated transformer is introduced and simulated using 3D Finite Element Analysis (FEA). Essentially, a simple PI-based voltage/current control loop Is implemented on a 32-bit microcontroller (TMS320F28379D). Also, synchronous rectification (SR) is implemented by controlling the turn-on and turn-off delays on rectifier sides, respectively. The design and control of the CLLC converter are verified through the experimental results. A 300 kHz, 700 W prototype Is built with the peak conversion efficiency of 96.6% while charging and 96.4% while discharging

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	CLLC converter, Energy storage system (ESS), Finite element analysis (FEA), Battery charging mode (BCM), and Discharging (DM)
Subjects:	Electronic Systems > Industrial Electronics
Divisions:	Electronic Systems
Depositing User:	Mr. Jitendra Nath Bajpai
Date Deposited:	10 Sep 2021 11:25
Last Modified:	10 Sep 2021 11:25
URI:	http://ceeri.csircentral.net/id/eprint/563

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