Fuzzy-controlled Li-ion battery charge system with active state-of-charge controller

Guan Chyun Hsieh; Liang Rui Chen; Kuo Shun Huang

doi:10.1109/41.925585

Fuzzy-controlled Li-ion battery charge system with active state-of-charge controller

Guan Chyun Hsieh, Liang Rui Chen, Kuo Shun Huang

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

141 Citations (Scopus)

Abstract

A fuzzy-controlled active state-of-charge controller (FC-ASCC) for improving the charging behavior of a lithium-ion (Li-ion) battery is proposed. The proposed FC-ASCC is designed to replace the general constant-voltage charging mode by two kinds of modes: sense and charge. A fuzzy-controlled algorithm is built with the predicted charger performance to program the charging trajectory faster and to remain the charge operation in a proposed safe-charge area (SCA). A modeling work is conducted for analyzing and describing the Li-ion battery in charging process. A three-dimensional Y-mesh diagram for describing the charging trajectories of the proposed FC charger is simulated. A prototype of a Li-ion battery charger with FC-ASCC is simulated and realized to assess the predicted charging performance. Experiment shows that the charging speed of the proposed FC charger compared with the general one increases about 23 % and the charger can safely work in the SCA.

Original language	English
Pages (from-to)	585-594
Number of pages	10
Journal	IEEE Transactions on Industrial Electronics
Volume	48
Issue number	3
DOIs	https://doi.org/10.1109/41.925585
Publication status	Published - 2001 Jun 1

All Science Journal Classification (ASJC) codes

Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/41.925585

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abstract = "A fuzzy-controlled active state-of-charge controller (FC-ASCC) for improving the charging behavior of a lithium-ion (Li-ion) battery is proposed. The proposed FC-ASCC is designed to replace the general constant-voltage charging mode by two kinds of modes: sense and charge. A fuzzy-controlled algorithm is built with the predicted charger performance to program the charging trajectory faster and to remain the charge operation in a proposed safe-charge area (SCA). A modeling work is conducted for analyzing and describing the Li-ion battery in charging process. A three-dimensional Y-mesh diagram for describing the charging trajectories of the proposed FC charger is simulated. A prototype of a Li-ion battery charger with FC-ASCC is simulated and realized to assess the predicted charging performance. Experiment shows that the charging speed of the proposed FC charger compared with the general one increases about 23 % and the charger can safely work in the SCA.",

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