An Efficient Hybrid Charge Balancing Algorithm for Plug-in Hybrid Electrical Vehicles
Abstract
Batteries are the main source of fuel for Plug-in Hybrid Electric Vehicles (PHEVs) as number of cells are connected in series and parallel to produce sufficient power to drive the motor. In order to fully utilize the battery storage, Battery Management System (BMS) is employed in PHEVs. Efficiency of battery can be drastically decreased when there is charge mismatch between the cells or between cell modules. To balance the charge in cells, several techniques has been proposed. However, these techniques took long time to balance the charge or some are not cost effective. To these problems, this paper proposed a novel hybrid algorithm which utilizes two algorithm solve Double Tiered Shuttling Capacitor (DTSC) and resistor shuttling. When the SoC difference is greater than 4%, DTSC will take over the control as it has less power consumption for greater SoC difference and for less than 4%, resistive shuttling overcomes as it has less power dissipation for lower SoC difference. The proposed algorithm is first simulated on MATLAB Simulink and then implemented on hardware for four lithium ion batteries connected in series. The result shows that proposed algorithm is the best candidate for Electrical Vehicle (EV) and PHEV due to less power consumption and cost effectiveness.
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Copyright (c) 2023 Waseem Abassi, Mubasher Irfan Abbasi
This work is licensed under a Creative Commons Attribution 4.0 International License.