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Energies 2018, 11(5), 1037; https://doi.org/10.3390/en11051037

Non-Equal Voltage Cell Balancing for Battery and Super-Capacitor Source Package Management System Using Tapped Inductor Techniques

Power Electronics Research Center, Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
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Received: 16 February 2018 / Revised: 16 March 2018 / Accepted: 20 March 2018 / Published: 24 April 2018
(This article belongs to the Special Issue Power Electronics for Energy Storage)
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Abstract

The battery management system (BMS) is the key development for energy storage systems, and battery balancing is an important subsystem of the BMS. However, with rapid development of supercapacitors, future energy storage cells are not constrained by one type, while different types of cells may form a source package (SP). Furthermore, the introduction of second-life batteries from retired electric vehicles promotes the demand of effective balancing systems for SPs with hybrid cells, as well as the requirement that balancing should be extended to any preset ratio rather than 1:1. This paper proposes a novel tapped inductor balancing circuit that allows any ratio of voltage balancing for hybrid energy storage cells. The analysis of the circuit, simulation and experiment results are presented to demonstrate its effectiveness in handling hybrid source balancing. View Full-Text
Keywords: source package; retired batteries; tapped inductor; voltage balance source package; retired batteries; tapped inductor; voltage balance
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Wang, X.; Cheng, K.W.E.; Fong, Y.C. Non-Equal Voltage Cell Balancing for Battery and Super-Capacitor Source Package Management System Using Tapped Inductor Techniques. Energies 2018, 11, 1037.

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