Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2020 - zeszyt 3

Design of Bidirectional DC-DC Cuk Converter for Testing Characteristics of Lead-Acid Battery

Wdrożenie dwukierunkowego przetwornika DC-DC Cuk z kontrolą trybu średniego prądu do testowania charakterystyki akumulatora ołowiowo-kwasowego

0.15199/48.2020.03.26

nr katalogowy: 125244
0.15199/48.2020.03.26

Streszczenie

Lead-acid battery is an important element in the development of electric vehicle and hybrid generating power plant. In real circumstances, the capacity of the battery will change according to the amount of current discharged from the battery. In normal operation, it usually uses a voltage cut-off reference. The battery cut-off voltage limit, however, is usually obtained with a constant discharge current, which, in this case, cannot be done in a practical application. Another reference is by using state of charge (SoC) estimating method. The common method used for SoC estimation is coulomb counting because it can be done while batteries are connected to a grid. This research will test the discharge characteristic curve and estimate the SoC battery using coulomb counting. The battery tested is a type of valve regulated lead-acid (VRLA) with a rating of 7.2Ah and 12V. To implement the test system, DC-DC Bidirectional Cuk Converter is proposed with Average Current Mode Control, where the battery testing scheme is modified, so the power usage is more efficient. According to the testing results, the DC-DC converter is able to test VRLA battery with discharge and charge-discharge testing schemes. The charge-discharge cycle test on VRLA batteries shows that the results of using the coulomb counting method is more accurate than open circuit voltage method.

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Bibliografia

[1] A. Ausswamaykin and B. Plangklang, “Design of real time management unit for power battery in PV-hybrid power supplies by application of Coulomb counting method," International Electrical Engineering Congress (iEECON), Chonburi, Thailand, Oct 2014, pp. 1-4.
[2] Technical Bulletin, C&D Technologies, “Capacity Testing of VRLA Batteries (20 to 200 Ampere-Hours Capacitcy)".
[3] P. E. Pascoe and A. H. Anbuky, “VRLA Battery Discharge Reserve Time Estimation," IEEE Trans. Power Electron., vol. 19, no. 6, pp. 1515-1522, Nov. 2004.
[4] G. Fathoni, S. A. Widayat, P. A. Topan, A. Jalil, A. I. Cahyadi, and O. Wahyunggoro, “Comparison of State-of-Charge (SOC) estimation performance based on three popular methods: Coulomb counting, open circuit voltage, and Kalman filter," in 2017 2nd International Conference on Automation, Cognitive Science, Optics, Micro Electro-Mechanical System, and Information Technology (ICACOMIT), Jakarta, Oct 2017, pp. 70-74.
[5] M. I. Wahyuddin, P. S. Priambodo, and H. Sudibyo, “State of Charge (SoC) Analysis and Modeling Battery Discharging Parameters," in 2018 4th International Conference on Science and Technology (ICST), Yogyakarta, Nop 2018, pp. 1-5.
[6] K. Tytelmaier, O. Husev, O. Veligorskyi, and R. Yershov, “A review of non-isolated bidirectional dc-dc converters for energ y storage systems,"2016 II International Young Scientists Forum on Applied Physics and Engineering (YSF), Kharkiv, Ukraine, Nop 2016, pp. 22-28.
[7] D. Pavlov, Lead-acid batteries: science and technology: a handbook of lead-acid battery technology and its influence on the product. Amsterdam ; Singapore: Elsevier Science Ltd, 2011.
[8] “Patrick T. Moseley, Jurgen Garche, C.D. Parker, D.A.J. Rand - Valve-Regulated Lead-Acid Batteries-Elsevier Science (2004).pdf." .

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