Lithium-ion battery cell-level control using constrained model predictive control and equivalent circuit models

JOURNAL OF POWER SOURCES

卷:285

Article

Xavier, Marcelo A.¹  Trimboli, M. Scott¹ 

[1] Univ Colorado, Dept Elect & Comp Engn, Colorado Springs, CO 80918 USA

关键词: Model predictive control;    Lithium ion battery;    Equivalent circuit model;    Battery management systems;   

DOI  :  10.1016/j.jpowsour.2015.03.074

来源: Elsevier

【 摘 要 】

This paper introduces a novel application of model predictive control (MPC) to cell-level charging of a lithium-ion battery utilizing an equivalent circuit model of battery dynamics. The approach employs a modified form of the MPC algorithm that caters for direct feed-though signals in order to model near-instantaneous battery ohmic resistance. The implementation utilizes a 2nd-order equivalent circuit discrete-time state-space model based on actual cell parameters; the control methodology is used to compute a fast charging profile that respects input, output, and state constraints. Results show that MPC is well-suited to the dynamics of the battery control problem and further suggest significant performance improvements might be achieved by extending the result to electrochemical models. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free