TY - GEN
T1 - Predictive Fast Charging of Lithium-ion Battery with Electro-Thermal Constraints
AU - Zhong, Hao
AU - Wei, Zhongbao
AU - He, Hongwen
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/7/20
Y1 - 2020/7/20
N2 - Lithium-ion batteries (LIBs) are widely used in electric vehicles (EVs) attributed to their advantages of high energy density and long cycle life. In this vision, fast charging of the LIB system has been a crucial technology to promote the large-scale penetration of EVs in the existing automotive market. Motivated by this, a thermal-constrained fast charging method is proposed based on the model predictive control (MPC) concept in this paper. A coupled electro-Thermal model is established, based on which two model-based observers are devised to estimate the state of charge (SOC) and internal temperature of LIB. On this premise, an MPC-based controller is exploited to trade-off smartly the charging fastness and the physical constraints. Comparative results show that the proposed method can optimize the charging towards high speed while keep the terminal voltage and battery internal temperature both within the safety region, which forms an obvious superiority over the traditionally-used constant-current-constant-voltage (CC-CV) protocol.
AB - Lithium-ion batteries (LIBs) are widely used in electric vehicles (EVs) attributed to their advantages of high energy density and long cycle life. In this vision, fast charging of the LIB system has been a crucial technology to promote the large-scale penetration of EVs in the existing automotive market. Motivated by this, a thermal-constrained fast charging method is proposed based on the model predictive control (MPC) concept in this paper. A coupled electro-Thermal model is established, based on which two model-based observers are devised to estimate the state of charge (SOC) and internal temperature of LIB. On this premise, an MPC-based controller is exploited to trade-off smartly the charging fastness and the physical constraints. Comparative results show that the proposed method can optimize the charging towards high speed while keep the terminal voltage and battery internal temperature both within the safety region, which forms an obvious superiority over the traditionally-used constant-current-constant-voltage (CC-CV) protocol.
KW - Lithium-ion battery
KW - electro-Thermal model
KW - fast charging
KW - model predictive control
UR - http://www.scopus.com/inward/record.url?scp=85111101849&partnerID=8YFLogxK
U2 - 10.1109/INDIN45582.2020.9442248
DO - 10.1109/INDIN45582.2020.9442248
M3 - Conference contribution
AN - SCOPUS:85111101849
T3 - IEEE International Conference on Industrial Informatics (INDIN)
SP - 615
EP - 620
BT - Proceedings - 2020 IEEE 18th International Conference on Industrial Informatics, INDIN 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th IEEE International Conference on Industrial Informatics, INDIN 2020
Y2 - 21 July 2020 through 23 July 2020
ER -
