航天器工程2024，Vol.33Issue(4)：56-64,9.DOI:10.3969/j.issn.1673-8748.2024.04.008
空间锂离子电池组非耗散均衡控制方案
Control Scheme for Non-dissipative Equalization of Space Lithium-ion Battery
张龙龙 1宋鼎 2李雅琳 3刘鹏 4王栋 4王磊4
作者信息
- 1. 中国石油大学(华东),山东青岛 266555||山东航天电子技术研究所,山东烟台 264670
- 2. 北京空间飞行器总体设计部,北京 100094
- 3. 中国空间技术研究院通信与导航卫星总体部,北京 100094
- 4. 山东航天电子技术研究所,山东烟台 264670
- 折叠
摘要
Abstract
With the increasing demand for performance indicators including energy density and re-liability etc.,space lithium-ion battery has gradually become the dominant application and deve-lopment of energy storage devices in spacecraft,and their lifespan and performance greatly de-pend on the equalization management of the series-connected single cells.In order to enhance the adaptability of the non-dissipative equalization management unit with a bidirectional DC/AC con-verter to a wide temperature operating range in space and to reduce losses during in-orbit opera-tion,a resonant frequency tracking control method for the bidirectional DC/AC converter,based on the non-dissipative equalization control scheme is proposed for space lithium-ion battery.The method employs a fully digital phase-locked loop to track the inherent frequency of the converter in real time,thereby ensuring that the bidirectional DC/AC converter operates in the system re-sonant state.The simulation and experimental results show that the resonant frequency control method is capable of tracking changes in the inherent frequency,enabling the converter to operate consistently in a soft-switching state over a wide range.This results in a reduction in the loss of switching devices and an enhancement in the efficiency of equalization management.The imple-mentation of the non-dissipative equalization control scheme in orbit has facilitated the upgrade and replacement of battery management products,thereby ensuring the safe operation of space-craft lithium-ion battery in orbit.关键词
空间锂离子电池组/非耗散均衡控制/双向直流/交流变换器/谐振频率跟踪控制Key words
space lithium-ion battery/non-dissipative equalization control/bidirectional DC/AC converter/resonant frequency tracking control分类
航空航天引用本文复制引用
张龙龙,宋鼎,李雅琳,刘鹏,王栋,王磊..空间锂离子电池组非耗散均衡控制方案[J].航天器工程,2024,33(4):56-64,9.
