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Safe Battery Control Using Cascade-Control-Barrier Functions

delete2024-11-01
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PRE
AI
S
Shuang Feng *
R
Ricardo de Castro
I
Iman Ebrahimi
DOI:10.1109/TCST.2024.3430708delete
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Abstract

Abstract

En 中文
This article proposes a control barrier function (CBF) approach for fast charging and discharging of batteries under temperature, state of charge (SoC), and terminal voltage constraints. To improve numerical efficiency, we derive a cascade CBF formulation, which divides this safety problem into multiple layers that are easier to formulate and implement. The proposed algorithm exhibits a computational speed that is seven times faster than the model predictive control (MPC) and 3.6 times faster than the traditional single-layer (central) CBF. In the charging scenario, experimental results indicate that the proposed algorithm reduces charging time by $20\%$ in comparison to traditional constant current, constant voltage (CC-CV) methods without violating electro-thermal safety constraints. The discharging experiment illustrates that the cascade CBF effectively limits the battery's performance to ensure compliance with safety constraints.
Keywords:
Constrained control
energy storage
hybrid and electric vehicles
optimization algorithms
Constrained control
energy storage
hybrid and electric vehicles
optimization algorithms

Journal

IEEE Transactions on Control Systems Technology cover
IEEE Transactions on Control Systems Technology
IF:
3.9
Papers:
4.9K
Citations:
1.7W

Organization

University of California System cover
University of California System
Scholars:
37.5W
Papers: 33.7W
Citations: 6.6K