Feedback PID Controller-Based Closed-Loop Fast Charging of Lithium-Ion Batteries Using Constant-Temperature–Constant-Voltage Method

Electronics

Ihsan Ullah Khalil¹  Sara Aslam¹  Ayesha Kaleem¹  Nasim Ullah²  Sattam Al Otaibi²  Merfat Algethami³ 

[1] Department of Electrical Engineering, College of EME, National University of Science and Technology, Islamabad 46000, Pakistan;Department of Electrical Engineering, Taif University, Taif 26571, Saudi Arabia;Physics Department, Faculty of Science, Taif University, Taif, P.O. Box 11099, Taif 21944, Saudi Arabia;

关键词: closed-loop charging;    constant temperature charging;    CT–CV charging;    fast charging;    lithium-ion batteries;    current- and voltage-mode control;   

DOI  :  10.3390/electronics10222872

来源: DOAJ

【 摘 要 】

Lithium-ion batteries are the most used technology in portable electronic devices. High energy density and high power per mass battery unit make it preferable over other batteries. The existing constant-temperature and constant-voltage charging technique (CT–CV), with a closed loop, lacks a detailed design of control circuits, which can increase charging speed. This article addresses this research gap in a novel way by implementing a simpler feedback proportional integral and differential (PID) control to a closed-loop CT–CV charging circuit. Voltage-mode control (VMC) and average current-mode control (ACM) methods were implemented to maintain the battery voltage, current, and temperature at safe limits. As per simulation results, 23% faster charging is achieved by implementing VMC and almost 50% faster charging is attained by employing the ACM technique in the PID controller. Our proposed control strategy is validated experimentally, which yields up to 25% faster charging of a battery than the reference battery.

【 授权许可】

Unknown