A Rule Based EMS for Fast Charging Station with CHIL Implementation

2020 ◽  
Author(s):  
Dhruv Kler ◽  
Asal Zabetian Hosseini ◽  
Sony Varghese ◽  
Chu Sun ◽  
Geza Joos
Keyword(s):  
Rule Based ◽  
Charging Station ◽  
Fast Charging ◽  
Fast Charging Station

scholarly journals Partial Power Processing Based Converter for Electric Vehicle Fast Charging Stations

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 260
Author(s):  
Jon Anzola ◽  
Iosu Aizpuru ◽  
Asier Arruti
Keyword(s):  
Electric Vehicle ◽  
Power Converters ◽  
Power Ratio ◽  
Charging Station ◽  
Fast Charging ◽  
Full Power ◽  
Processing Architectures ◽  
Charging Stations ◽  
Fast Charging Station ◽  
Partial Power Processing

This paper focuses on the design of a charging unit for an electric vehicle fast charging station. With this purpose, in first place, different solutions that exist for fast charging stations are described through a brief introduction. Then, partial power processing architectures are introduced and proposed as attractive strategies to improve the performance of this type of applications. Furthermore, through a series of simulations, it is observed that partial power processing based converters obtain reduced processed power ratio and efficiency results compared to conventional full power converters. So, with the aim of verifying the conclusions obtained through the simulations, two downscaled prototypes are assembled and tested. Finally, it is concluded that, in case galvanic isolation is not required for the charging unit converter, partial power converters are smaller and more efficient alternatives than conventional full power converters.

scholarly journals Modular Approach to Ultra-fast Charging Stations

2021 ◽  
Author(s):  
Carola Leone ◽  
Michela Longo
Keyword(s):  
Impact Analysis ◽  
Road Transport ◽  
Modular Approach ◽  
Long Distance ◽  
Charging Infrastructure ◽  
Charging Station ◽  
Fast Charging ◽  
Modular Architectures ◽  
The Impact ◽  
Fast Charging Station

AbstractRoad transport electrification is essential for meeting the European Union's goals of decarbonization and climate change. In this context, an Ultra-Fast Charging (UFC) system is deemed necessary to facilitate the massive penetration of Electric Vehicles (EVs) on the market; particularly as medium-long distance travels are concerned. Anyway, an ultra-fast charging infrastructure represents the most critical point as regards hardware technology, grid-related issues, and financial sustainability. Thus far, this paper presents an impact analysis of a fast-charging station on the grid in terms of power consumption, obtained by the Monte Carlo simulation. Simulation results show that it is not economical convenient size the assumed ultra-fast charging station for the maximum possible power also considering its high impact on the grid. In view of the results obtained from the impact analysis, the last part of the paper focuses on finding a method to reduce the power installed for the DC/DC stage while keeping the possibility for the electric vehicle to charge at their maximum power. To achieve this goal a modular approach is proposed. Finally, two different modular architectures are presented and compared. In both the solutions, the probability of having EVs charging at limited power is less than 5%.

scholarly journals A computational dynamic analysis of sustainable electric vehicle fast charging station

2020 ◽  
Author(s):  
Marcel A. A. Viegas ◽  
Carlos Tavares da C. Jr.
Keyword(s):  
Dynamic Analysis ◽  
Electric Vehicle ◽  
Photovoltaic System ◽  
Charging Station ◽  
Distribution Transformers ◽  
Power And Control ◽  
Fast Charging ◽  
Power Switches ◽  
Utility Grid ◽  
Fast Charging Station

This paper proposes the design and dynamic analysis of a possible topology of Electric Vehicle Fast Charging Station (EVFCS), which interconnects Photovoltaic Generator (PV); Stationary Batteries (SB); DC Bus; Electric Vehicle (EV); Power Switches; DC-DC Power Converters (Buck, Boost, and Bidirectional DC-DC Converter); Bidirectional AC-DC Converter; High Frequency Transformer (HFT); Matrix Converter (MC) and LCL Filter, with the possibility of connecting to the Utility Grid. The Stationary Battery will be charged slowly through the Photovoltaic System in the morning and afternoon hours and by the Utility Grid at night. Later, the Stationary Batteries will be discharged and will charge the Electric Vehicle Battery quickly (about 20-30 minutes) through a Bidirectional DC-DC Converter and through the Utility Grid, but with an effort much less to process high power in short time intervals in the distribution transformers. The power and control projects of the system were performed through calculations and validated by performing simulations. The simulations will be done in MATLAB / Simulink software. Three operating scenarios will be created, where the use or not of the Utility Grid will be analyzed, according to the intermittent of the Photovoltaic Generator, the State-of-Charge (SOC) of the Stationary Batteries and the Electric Vehicle. For this, there will be the management of the power flows that will be performed by Power Switches. The results indicate the effectiveness of the proposed strategies.

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