International Journal of Power Electronics and Drive Systems (IJPEDS) Vol. 15, No. 1, March 2024, pp. 303~311 ISSN: 2088-8694, DOI: 10.11591/ijpeds.v15.i1.pp303-311  303 Journal homepage: http://ijpeds.iaescore.com New combined control strategy of on-board bidirectional battery chargers for electric vehicles Khadidja Hadji, Kada Hartani, Tarik Mohammed Chikouche Electrotechnical Engineering Laboratory, Electrotechnical Department, Faculty of Technology, University of Saida Dr. Moulay Tahar, Saida, Algeria Article Info ABSTRACT Article history: Received Feb 20, 2023 Revised May 10, 2023 Accepted May 25, 2023 This paper aims to develop a bidirectional on-board battery charger for electric vehicles (EVs). The studied battery charger is composed of a bidirectional ac-dc converter as the first stage of conversion and a bidirectional dc-dc converter as the second stage. The first one is controlled by a predictive direct power control strategy based on a space vector modulation technique known as P-SVM-DPC, and the second is used to regulate the battery current and regulate the power direction flow by using a direct current control technique. The choice of its topology has taken into consideration the grid-to-vehicles (G2V) and vehicle-to-grid (V2G) power flow directions. During charging or discharging, the DC/DC converter acts likes a buck or boost converter. Using MATLAB/Simulink software, the performance of the battery charger is examined in various operating modes, such as fast charging and quick discharging. Keywords: Battery charger Electric vehicles G2V Power quality Predictive technique Unit power factor V2G This is an open access article under the CC BY-SA license. Corresponding Author: Khadidja Hadji Electrotechnical Engineering Laboratory, Electrotechnical Department, Faculty of Technology University of Saida Dr. Moulay Tahar 4 P. O. B. 138, 20000 Ennasr, Saida, Algeria Email: hadji.khadidja@yahoo.com 1. INTRODUCTION The irreversible transition from vehicles with internal combustion engines (ICE) to electric vehicles with electric motors is caused by the revolutionary contributions of power electronics and such disadvantages of ICE as the emission of greenhouse gases, the quick exhaustion of petroleum, and the rising price of things made from petroleum. Electric vehicles (EVs) has become more attractive over the past few thanks to their advantages that are less noisy, more efficient, and more friendly. What concerns most of those who plan to buy this type of vehicle is the autonomy, how to charge it, the accessibility of many electric recharging stations, and the cost of charging. Currently, there is an advantage in some charging stations, which is that it is possible to replace the empty battery with one that is charged and ready for use power electronic converters are required for EV battery charging, which connects vehicles to the grid using the new technological trends. Each of these trends requires stable power, a bidirectional power converter, and flexible control techniques [1]. The power level of the battery pack determines which AC/DC converter is used for grid-connected devices, like a single-phase half- or full-bridge, a three-phase full-bridge, or a multilevel converter [2], and multilevel topologies such as cascaded H-bridge (CHB), neutral point clamped (NPC), or flying capacitor (FCC) converters are used for high power, reduced voltage, and better output quality [3]. The power supply configuration of an EV must take into account many possible converter topologies. Different converters have different uses, such as increasing efficiency and dependability or having great sensitivity and stability to load variations. It is important to take into account cost of components, techniques for managing hardware