Abstract
Due to environmental problems in the world, the need for electric vehicles is increasing. While the transition to Electric Vehicles continues, the acceleration of this process plays an important role in reducing environmental problems. In order to accelerate this transition, charging units should become widespread and charging time should be reduced. Higher power charging units are needed to reduce charging time. This is where DC (Direct Current) fast charging units come into play. In this study, the charging process of electric vehicles, the behavior of the DC fast charging unit on the battery and the control systems are modeled in MATLAB/Simulink environment. The designed model represents the electric power system that will charge electric vehicles and is suitable for more than one electric vehicle to be included in the DC fast charging system. The simulation is integrated according to the DC level-2 charging conditions. The system model consists of 1 AC(AC Current)/DC converter, 1 DC busbar, 2 DC/DC converters to charge electric vehicles and multiple EV batteries. The system model includes the design methods (AC/DC-DC/DC) design and different control strategies) and descriptions of these components. The simulation result shows that the filter and control system integrations in the electrical power system exhibit more stable behavior by correcting the negative effects on the power system. Thus, it offers positive outputs about the integration of DC fast charging units, which will increase rapidly in the future, into the power system and how this process should be established.
Highlights
Carbon emissions of conventional vehicles are among the biggest reasons for the continued rise of global warming in the world
Increasing environmental problems in recent years, transformation in energy systems, digitalization are the issues that affect the transition to EVs the most
DC fast charging units come to the fore due to the need for high power energy as the charging time needs to be shortened in order for EVs to be more preferred
Summary
Carbon emissions of conventional vehicles are among the biggest reasons for the continued rise of global warming in the world. Isa list of charging port and socket standards in Figure-2 and Figure-3 Given all these factors and the conditions required, improvements to EVs will further the charging infrastructure and EVs. the transition from internal combustion engine vehicles to electric motor vehicles will gain speed while at the same time becoming a practical process. This study includes the calculation of the parameters of the charging unit and other electrical power system equipment, the presentation of mathematical formulas, the design of the Simulink model, the interpretation of battery measurements by sharing, the general evaluation of the model. These contents are presented in stages .
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