Unidirectional DC/DC Converter with Voltage Inverter for Fast Charging of Electric Vehicle Batteries

Abstract

The paper proposes the adaptation of the industrial plant’s power network to supply electric vehicle (EV) fast-charging converters (above 300 kW) using renewable energy sources (RESs). A 600 V DC microgrid was used to supply energy from RESs for the needs of variable speed motor drives and charging of EV batteries. It has been shown that it is possible to support the supply of drive voltage frequency converters (VFCs) and charging of EV batteries converters with renewable energy from a 600 V DC microgrid, which improves the power quality indicators in the power system. The possibility of implementing the fast EV batteries charging station to the industrial plant’s power system in such a way that the system energy demand is not increased has also been shown. The EV battery charging station using the drive converter has been presented, as well as the results of simulation and laboratory tests of the proposed solution.

Recent Advancements in Battery Management System for Li‐Ion Batteries of Electric Vehicles: Future Role of Digital Twin, Cyber‐Physical Systems, Battery Swapping Technology, and Nondestructive Testing

“…The operating voltage and operating currents are the two major factors which affects the life, and performance of the battery. [ 35–44 ] It is advised that both the operating voltage and operating current should be kept within the safe operating area (SOA). Any operation beyond SOA may result in the permanent failure of the battery.…”

“…The various charging methods were assessed critically and it was investigated that the dual‐balancing mechanism of voltage protection is an efficient and fast way of balancing the voltage levels. [ 39 ] Further, Szymanski et al [ 40 ] proposed a unidirectional DC‐to‐DC converter using voltage inverter. In which, the authors have experimentally verified that the voltage levels could be maintained within the limit.…”

“…In which, the authors have experimentally verified that the voltage levels could be maintained within the limit. The authors [ 40,41 ] also proposed an another efficient method of over‐voltage and over‐current protection by the means of internal adaptive charger using fuzzy‐logic control. [ 40 ] Cheng et al [ 41 ] also have experimentally verified it in their research work.…”

“…The authors [ 40,41 ] also proposed an another efficient method of over‐voltage and over‐current protection by the means of internal adaptive charger using fuzzy‐logic control. [ 40 ] Cheng et al [ 41 ] also have experimentally verified it in their research work. [ 41 ] Similarly, Moghaddam and Bossche [ 42 ] proposed another effective method of over‐voltage protection using resonant‐switched capacitor circuit.…”

The Resistive Ground Fault of PWM Voltage Inverter In The EV Charging Station

“…In drive frequency converters, the PWM voltage inverter is a DC/AC converter which is usually connected to the motor. The drive frequency converters can also be used as a part of EV battery charger converters 1 . Fig.…”