Power Electronics-Enabled Self-X Multicell Batteries: A Design Toward Smart Batteries

Taesic Kim, Wei Qiao, Liyan Qu
2012 IEEE transactions on power electronics  
The traditional multicell battery design usually employs a fixed configuration to connect multiple cells in series and in parallel during operation in order to achieve the required voltage and current. However, this fixed configuration results in low reliability, low fault tolerance, and nonoptimal energy conversion efficiency. This paper proposes a novel power electronics-enabled self-X, multicell battery design. The proposed multicell battery can automatically configure itself according to
more » ... elf according to the dynamic load/storage demand and the condition of each cell. The proposed battery can self-heal from failure or abnormal operation of single or multiple cells, self-balance from cell state variations, and selfoptimize to achieve optimal energy conversion efficiency. These features are achieved by a new cell switching circuit and a highperformance battery management system proposed in this paper. The proposed design is validated by simulation and experiment for a 6 × 3 cell polymer lithium-ion battery. The proposed design is universal and can be applied to any type and size of battery cells. or coauthor of three book chapters and more than 90 papers in refereed journals and international conference proceedings. His research interests include renewable energy systems, smart grids, microgrids, power system control and optimization, condition monitoring and fault diagnosis, energy storage systems, power electronics, electric machines and drives, and computational intelligence for electric power and energy systems. Dr. she was an Application Engineer with Ansoft Corporation. She is currently a Senior Lecturer with the Department of Electrical Engineering, University of Nebraska-Lincoln, Lincoln. Her research interests include energy efficiency, renewable energy, numerical analysis and computer-aided design of electric machinery and power electronics devices, dynamics and control of electric machinery, permanent magnet machines, and magnetic materials.
doi:10.1109/tpel.2012.2183618 fatcat:ikwnlotvtjfwnccl26ddoak4ra