Controlled Active Rectifier Circuit-Based Extreme Fast Charging System for Electric Vehicles

Abstract

This paper proposes the model of an Extreme Fast Charging System (XFC) with a Controlled Active Rectifier Circuit (CARC). In this paper controlled active rectifier circuit has been introduced in place of any kind of uncontrolled or semi-controlled rectifier. With the increasing awareness of electric vehicles (EVs), it is required to advance extreme fast charging system topology for high power charging of EV for a power greater than 350 kW. The research focused on charging the electrical vehicles (EVs) battery at unity power factor (UPF) at the input side of the system using a controlled active rectifier circuit. It will transfer maximum active power to the battery of the electric vehicle with no reactive power so that the power factor of the circuit will be unity and also have a very less harmonic distortion in current waveforms at the input side of the rectifier, with the proposed converter scheme of CARC total harmonic distortion (THD) in the system has been achieved to 4.37% which is desired result. By using the CARC, we can control the output voltage of the rectifier for a wide range of voltage from 400 to 800 V without affecting the UPF at the input side of the XFC system. Multiple partial power charging unit (PPCU) is placed at the output side so that maximum EVs battery can be charged at a time. The performance evaluation of the XFC system is done using MATLAB/Simulink and simulated results are for various steady states.