Converter_modes_in_modular_second_life_hybrid_battery_energy_storage_systems.pdf (2.66 MB)
Analysis and comparative study of different converter modes in modular second-life hybrid battery energy storage systems
journal contribution
posted on 2017-05-12, 10:57 authored by Nilanjan Mukherjee, Dani StricklandDani StricklandThe use of extransportation battery system (i.e., second-life electric vehicle/hybrid electric vehicle batteries) in grid applications is an emerging field of study. A hybrid battery scheme offers a more practical approach in second-life battery energy storage systems, because battery modules could be from different sources/vehicle manufacturers depending on the second-life supply chain and have different characteristics, e.g., voltage levels, maximum capacity, and also different levels of degradations. Recent research studies have suggested a dc-side modular multilevel converter topology to integrate these hybrid batteries to a grid-tie inverter. Depending on the battery module characteristics, the dc-side modular converter can adopt different modes, such as boost, buck, or boost-buck to suitably transfer the power from the battery to the grid. These modes have different switching techniques, control range, different efficiencies, which give a system designer choice on an operational mode. This paper presents an analysis and comparative study of all the modes of the converter along with their switching performances in detail to understand the relative advantages and disadvantages of each mode to help to select the suitable converter mode. Detailed study of all the converter modes and the thorough experimental results based on a multimodular converter prototype with hybrid batteries have been presented to validate the analysis.
Funding
This work was supported by the Engineering and Physical Sciences Research Council (EPSRC), U.K., under Grant EP/1008764/1.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
IEEE Journal of Emerging and Selected Topics in Power ElectronicsVolume
4Issue
2Pages
547 - 563Citation
MUKHERJEE, N. and STRICKLAND, D., 2015. Analysis and comparative study of different converter modes in modular second-life hybrid battery energy storage systems. IEEE Journal of Emerging and Selected Topics in Power Electronics, 4 (2), pp. 547-563.Publisher
© IEEEVersion
- AM (Accepted Manuscript)
Acceptance date
2015-07-18Publication date
2015Notes
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.ISSN
2168-6777eISSN
2168-6785Publisher version
Language
- en