pp. 1373-1381
S&M1593 Research Paper of Special Issue https://doi.org/10.18494/SAM.2018.1949 Published: June 29, 2018 Isolated Balance Charger for Series-connected Batteries Based on Dual-output Converter [PDF] Yu-Lin Juan (Received April 2, 2018; Accepted May 31, 2018) Keywords: series-connected batteries, isolated charger, balance charging
An isolated balance charger for series-connected batteries is proposed in this paper. With the proposed charger, the balanced charging power is directly provided to the series-connected batteries without any additional energy moving process between the batteries. The proposed charger is composed of an isolated dual half-bridge dc converter and two dual output converters. Operational principles and control strategy are illustrated in this paper. A low-cost microcontroller unit is adopted to implement the digital controller with fed-back voltage and current signals of the batteries. A prototype for four 12V 22Ah series-connected batteries is constructed. From the experimental results, the performance and validity of the proposed charger can then be verified. Compared with the conventional charger, the charging efficiency can be improved by 8.3%.
Corresponding author: Yu-Lin JuanCite this article Yu-Lin Juan, Isolated Balance Charger for Series-connected Batteries Based on Dual-output Converter, Sens. Mater., Vol. 30, No. 6, 2018, p. 1373-1381. |