Design and Implementation of Buck Converter for Fast Charging with Fuzzy Logic

Indhana Sudiharto, Moch. Igam Rahadyan, Ony Asrarul Qudsi


This research presents a battery charger design that can charge faster than using a PWM type solar charge controller (SCC). SCC is often operated when the battery capacity is 80% so that the charging current that can be provided is only 10% to 20% of the battery capacity. The battery charging method applied in this study uses the principle of fast charging by adjusting the value of the current and the output voltage value of the buck converter. Fast charging has its own characteristic, obviously, the charging rate that is greater than the usual charging method, which is up to 1C of the battery capacity. The principle of fast charging in this study uses the constant current / constant voltage method. This converter is designed with the ability to produce current by the charging rate of 1C from a 12Ah battery capacity of 12 A and an output voltage of 16.8 V. To ensure that the output of the converter matches the setpoint, the duty cycle value is adjusted using fuzzy control. Based on the results obtained from the simulation, the control of this study obtained an output current 12  Amperes with error ripple current around 8.3%. The SOC on this battery increased by 75.74% in 45 minutes.

Keywords: fast charging, fuzzy, buck convreter

Full Text:



Dwi Pratiwi, S.T, M.T, DRS. Maison, M.SI. PH.D, Dini Khusnul Yaqin, “Rancang Bangun Charge Controller Panel Surya Dengan Menggunakan Sistem Fast Charging”, UNJA, 2019.

Galih Cahyo Adi, “Desain Pengisian Batere Metode Constant Current Constant Voltage Berbasis dsPIC30f4012”, UNIKA, 2015.

Indhana Sudiharto, Farid Dwi Murdianto, Irianto, Ayu Wulandari, “Adaptive Power Charge using PID Controller on DC Load Application”,2019.

Sutedjo, Ony Asrarul Qudsi, Andi Ardianto, Diah Septi Yanaratri, Suhariningsih,Moch. Darwis “Design and Implementation Buck Converter for 540WP Solar Charger Using Fuzzy Logic Control”, ASTECHNOVA,2017

Ming-Wang Cheng, Shih-Ming Wang, Yuang-Shung Lee, Sung-Hsin Hsiao, “Fuzzy Controlled Fast Charging System for Lithium-Ion Batteries”, IEEE,2009.

Jerzy Bakalarczyk, “Charging of PV Battery At Constant Current Mode By Using Fuzzy Logic Control”, IEEE, 2017.

V.L. Teofilo, V.L. Mermitt and R. P. Hollandsworth, “Advanced Lithium Ion Battery Charge,” Battery Conference on Applications and Advances”, vol. 12, no. 11, pp. 227-231, 1997.

Zhai Haizhou, “Modeling of Lithium-ion Battery for Charging/Discharging Characteristics Based on Circuit Model”,Ijoe, 2017.

Daniel W. Hart. 2011. Power Electronics. New York. The McGraw-Hill Companies.



Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.