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Determining the shortest charging time of batteries using SOC set point at constant current – constant voltage mode

Faanzir Faanzir, Ashari Mochamad, Soedibyo Soedibyo, Umar Umar

Przegląd Elektrotechniczny

2021

R. 97, nr 4

54--59

A method of determining the shortest charging time of 3 types of batteries: Lead Acid, Lithium Ion, Nickel metal hydride. Constant current (CC) and constant voltage (CV) charging modes are applied. Initially filled using the constant current method, the voltage and SOC increase over time. When reaching a certain SOC, as a set point, the voltage becomes constant and the charging current decreases until the battery is fully charged. The results show that the fastest charging time by for Li-Ion is 2.632 hours, Lead Acid is 4.619 hours, Ni-mH is 6.714 hours.

Opisano metodę określania najkrótszego czasu ładowania trzech typów baterii: ołowiowej, litowo-jonowej i niklowej. Rozpatrywano tryb stałego prądi I stałego napięcia. Po osiągnięciu pewnej wartości SOC (State of Cargin) pozostaje stałe napięcie a prąd stopniowo maleje. Otrzymano następujące rezultaty: liowo jonowe 2.6 godz, ołowiowe 4.6 godz I niklowe 6.7 godz.

Research on hybrid topology of single-switch ICPT for battery charging

Zhang Guangzong, Wang Chunfang, Zheng Jianfen, Li Houji

Archives of Electrical Engineering

2020

Vol. 69, nr 4

841--855

: In order to realize constant current and constant voltage charging for batteries by inductively coupled power transfer (ICPT) technology, a single-switch CL/LCL circuit is designed. The single-switch CL/LCL circuit is composed of a CL/LCL compensation network and single-switch inverter. The proposed circuit is compared with the traditional constant current and constant voltage circuit in the structure. The operating process of the single-switch CL/LCL circuit and the principle to realize a zero-voltage switch (ZVS) are analysed in detail in this paper. The voltage gain and current gain of the circuit are calculated, which demonstrates that the circuit is able to suppress higher harmonics strongly. By using Fourier decomposition, the voltage on the primary-side compensation capacitor can be obtained. After constructing the equivalent mutual inductance model of the circuit, the formulas and parameters are deduced and calculated. Finally, an experiment platform is built to verify the proposed circuit can realize constant current and constant voltage.