Battery impedance spectroscopy using bidirectional grid connected converter

被引：3
|
作者：
Dam, Shimul Kumar [1 ]
John, Vinod [1 ]
机构：
[1] Indian Inst Sci, Dept Elect Engn, Bangalore 560012, Karnataka, India
来源：
SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2017年 / 42卷 / 08期
关键词：
Impedance spectroscopy; grid connection; battery converter; state of charge; health monitoring; STATE-OF-CHARGE; ION BATTERY; HEALTH; PROGNOSTICS;
D O I：
10.1007/s12046-017-0686-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Battery impedance can provide valuable insight into the condition of the battery. Commercially available impedance measurement instruments are expensive. Hence their direct use in a battery management system is not justifiable. In this work, a 3-kW bi-directional converter for charging and discharging a battery bank has been implemented with the capability of impedance measurement. The converter is grid connected and controlled to operate at unity power factor. Additional requirements on filter design and control structure of battery converter for impedance measurement are discussed. An algorithm has been developed to measure impedance by frequency sweep, avoiding transients. The measured impedance has been compared to that from a commercially available impedance measurement equipment and is shown to have a good match.
引用
收藏
页码：1343 / 1354
页数：12
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