Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 10, Pages 9386-9397Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3021608
Keywords
Prototypes; Modulation; Control systems; Regulation; Batteries; State of charge; Voltage control; Battery energy storage system; battery management system (BMS); dc-dc converter; hierarchical control; lithium-ion battery; multi-input; single-output; single-inductor; state-of-charge (SOC); SOC balancing
Categories
Funding
- National Science Foundation [1509824]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1509824] Funding Source: National Science Foundation
Ask authors/readers for more resources
This article presents a hierarchical state-of-charge (SOC) balancing control method for a battery energy storage system, which is able to achieve SOC balancing at both the cell and module levels simultaneously while maintaining bus voltage regulation at the battery system output.
This article presents a hierarchical state-of-charge (SOC) balancing control method for a battery energy storage system. In the presented system, multiple battery cells are connected in-parallel at the inputs of a single-inductor multiinput single output (SI-MISO) power converter to form a battery module and multiple battery modules are connected in series at the output to form the complete battery system or pack. The presented hierarchical controller is able to control the SOC (achieve SOC balancing) at both the cell level and the module level (between all cells that are effectively connected in series and in-parallel) while simultaneously maintaining bus voltage regulation at the battery system or pack output. This is achieved by using the presented modulation scheme for the duty cycles of the power converter switches. Theoretical analysis and results from a proof-of-concept experimental prototype are presented and discussed in this article in order to evaluate and validate the operation of hierarchical SOC balancing controller and battery system.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available