scholarly journals Location-Allocation of Electric Vehicle Fast Chargers—Research and Practice

2019 ◽  
Vol 10 (1) ◽  
pp. 12 ◽  
Author(s):  
Yutaka Motoaki
Keyword(s):  
Electric Vehicle ◽  
Large Scale ◽  
Academic Research ◽  
The United States ◽  
Location Allocation ◽  
Charging Station ◽  
Fast Charging ◽  
Explicit Consideration ◽  
Charging Stations ◽  
Practical Constraints

This paper conducts a comparative analysis of academic research on location-allocation of electric vehicle fast chargers into the pattern of the actual fast-charger allocation in the United States. The work aims to highlight the gap between academic research and actual practice of charging-station placement and operation. It presents evidence that the node-serving approach is, in fact, applied in the actual location-allocation of fast charging stations. However, little evidence suggests that flow-capturing, which has been much more predominantly applied in research, is being applied in practice. The author argues that a large-scale location-allocation plan for public fast chargers should be formulated based on explicit consideration of stakeholders, the objective, practical constraints, and underlining assumptions.

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 Self-Sustainable off grid Electric Vehicle (EV) Charging Station with Integration of Renewable Sources

2020 ◽  
Vol 9 (3) ◽  
pp. 2669-2674
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Large Scale ◽  
Transport Systems ◽  
Diesel Generator ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Power Generation Technology ◽  
Charging Stations ◽  
Ev Charging

Electric Vehicles (EV) are the world’s future transport systems. With the rise in pollutions and its effects on the environment, there has been a large scale movetowards electrical vehicles. But the plug point availability for charging is the serious problem faced by the mostof Electric Vehicle consumers. Therefore, there is a definite need to move from the GRID based/connected charging stations to standalone off-grid stations for charging the Electric Vehicles. The objective of this paper is to arrive at the best configuration or mix of the renewable resources and energy storage systems along with conventional Diesel Generator set which together works in offgrid for Electric Vehicle charging. As aconclusion, by utilizing self-sustainable off-grid power generation technology, the availability of EV charging stations in remote localities at affordable price can be made and mainly it reduces burden on the existing electrical infrastructure.

scholarly journals A multi-factor GIS method to identify optimal geographic locations for electric vehicle (EV) charging stations

2018 ◽  
Vol 1 ◽  
pp. 1-6 ◽  
Author(s):  
Yongqin Zhang ◽  
Kory Iman
Keyword(s):  
Electric Vehicle ◽  
Hot Spot ◽  
The United States ◽  
Complex Problem ◽  
Geographic Locations ◽  
Charging System ◽  
Charging Station ◽  
Range Anxiety ◽  
Charging Stations ◽  
Ev Charging

Fuel-based transportation is one of the major contributors to poor air quality in the United States. Electric Vehicle (EV) is potentially the cleanest transportation technology to our environment. This research developed a spatial suitability model to identify optimal geographic locations for installing EV charging stations for travelling public. The model takes into account a variety of positive and negative factors to identify prime locations for installing EV charging stations in Wasatch Front, Utah, where automobile emission causes severe air pollution due to atmospheric inversion condition near the valley floor. A walkable factor grid was created to store index scores from input factor layers to determine prime locations. 27 input factors including land use, demographics, employment centers etc. were analyzed. Each factor layer was analyzed to produce a summary statistic table to determine the site suitability. Potential locations that exhibit high EV charging usage were identified and scored. A hot spot map was created to demonstrate high, moderate, and low suitability areas for installing EV charging stations. A spatially well distributed EV charging system was then developed, aiming to reduce “range anxiety” from traveling public. This spatial methodology addresses the complex problem of locating and establishing a robust EV charging station infrastructure for decision makers to build a clean transportation infrastructure, and eventually improve environment pollution.

scholarly journals Graphical User Interface for Electric Vehicle Charging Station

2019 ◽  
Vol 8 (10) ◽  
pp. 628-632
Keyword(s):  
User Interface ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Touch Screen ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Battery Capacity ◽  
Fast Charging ◽  
Charging Stations ◽  
Day By Day

Electric vehicles are increasing day by day because of its low battery cost and good battery capacity compared to other technology. Increasing automotive growth in electric vehicles also increases the automation to use it.Graphical User Interface for electric vehicles with a full-blown touch screen will become more easy to use with the introduction of fast charging stations. The approach shown to build HMI use Texas Instruments kit and CCS software. The TM4C123GH6PM processors provide scalability it also provides different processing speeds along with the software which is compatible with hardware to build low and high end applications, and provides connectivity with various peripherals required for Electric Vehicle System Equipment HMI e.g. UART and CAN. Along with this processor touch screen display K350QVGA (Texas Instruments) is used to test the output screen

The Optimization Model of Planning Electric Vehicle Charging Station

2014 ◽  
Vol 672-674 ◽  
pp. 1183-1188 ◽  
Author(s):  
Shu Qiang Zhao ◽  
Zhi Wie Li
Keyword(s):  
Electric Vehicle ◽  
Queuing Theory ◽  
Battery Charger ◽  
Total Cost ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Planning Approach ◽  
Fast Charging ◽  
Vehicle Charging ◽  
Charging Stations

Aiming at the problem of electric vehicle charging station planning, the clients of fast charging stations is analyzed. The optimal mathematical model about siting of electric vehicle charging stations is proposed based on the city's geographic information. We obtain the optimal location of charging stations by charging convenient factor as a constraint. And divide the load area which is served by each charging station by the Voronoi. According to the load which is served by each charging station, this paper designs the optimal battery charger number of each charging station with the Queuing Theory. Finally, optimize the charging convenient factor using the total cost as objective function. The analysis of examples verifies the effectiveness and the practicability of the proposed planning approach.

scholarly journals Optimization and Coordination of Electric Vehicle Charging Process for Long-Distance Trips

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4054
Author(s):  
Jean Hassler ◽  
Zlatina Dimitrova ◽  
Marc Petit ◽  
Philippe Dessante
Keyword(s):  
Large Scale ◽  
Heavy Traffic ◽  
Limited Range ◽  
Long Distance ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Battery Capacity ◽  
Fast Charging ◽  
Vehicle To Infrastructure ◽  
Charging Stations

Battery electric vehicles offer many advantages in terms of performance and zero-emission pollutants, but their limited range for long-distance trips compromises their large-scale market penetration. The problem of range can be solved with a dense network of fast-charging stations and an increase in embedded battery capacity. Simultaneously, improvements in high-power charging point units offer range gains of hundreds of kilometers in a mere 20 min. One risk remains: The travel time depends on the availability of charging stations, which can drop during rush hours, due to long queues, or power grid constraints. These situations could significantly affect the user experience. In this paper, we presented an approach to coordinate EV charging station choices in the case of long-distance trips. This system relies on vehicle-to-infrastructure communications (V2X). The objective is to enhance the use of the infrastructure by improving the distribution of vehicles between the different charging stations, thus reducing waiting time. Our target is to build an efficient and easily deployable system. The performance of this system is compared to an uncoordinated situation and an offline optimization. We conducted a case study on a 550-km highway with heavy traffic. With this system, the results showed a 10% reduction in time spent in charging stations.

scholarly journals Elastic Charging Service Fee Based Load Guiding Strategy for Fast Charging Station

2017 ◽  
Author(s):  
Shu Su ◽  
Hang Zhao ◽  
Hongzhi Zhang ◽  
Xiangning Lin
Keyword(s):  
Large Scale ◽  
Power Grid ◽  
Fuzzy Programming ◽  
Target Region ◽  
Charging Station ◽  
Service Pricing ◽  
Fast Charging ◽  
Network Operation ◽  
Dynamic Charging ◽  
Charging Stations

Compared with the traditional slow charging loads, random integration of large scale fast charging loads will exert more serious impacts on the security of power network operation. Besides, to maximize social benefits, effective scheduling strategy guiding fast charging behaviors should be formulated rather than simply increasing infrastructure construction investments on the power grid. This paper has analyzed the charging users’ various responses to the elastic charging service fee, introduced the index of charging balance degree to a target region by considering the influence of fast charging loads on power grid. Then, a multi-objective optimization model of the fast charging service fee is constructed, whose service fee can be further optimized by employing fuzzy programming method. Therefore, both users’ satisfaction degree and the equilibrium of charging loads can be maintained simultaneously by guiding EVs to different fast charging stations reasonably. The simulation results demonstrate the effectiveness of proposed dynamic charging service pricing and the proposed fast charging load guidance strategy.

scholarly journals Energy Management System Optimization of Drug Store Electric Vehicles Charging Station Operation

2021 ◽  
Vol 13 (11) ◽  
pp. 6163
Author(s):  
Yongyi Huang ◽  
Atsushi Yona ◽  
Hiroshi Takahashi ◽  
Ashraf Mohamed Hemeida ◽  
Paras Mandal ◽  
...  
Keyword(s):  
Power Generation ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
System Optimization ◽  
Mixed Integer ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Photovoltaic Power ◽  
Vehicle Charging ◽  
Charging Stations

Electric vehicle charging station have become an urgent need in many communities around the world, due to the increase of using electric vehicles over conventional vehicles. In addition, establishment of charging stations, and the grid impact of household photovoltaic power generation would reduce the feed-in tariff. These two factors are considered to propose setting up charging stations at convenience stores, which would enable the electric energy to be shared between locations. Charging stations could collect excess photovoltaic energy from homes and market it to electric vehicles. This article examines vehicle travel time, basic household energy demand, and the electricity consumption status of Okinawa city as a whole to model the operation of an electric vehicle charging station for a year. The entire program is optimized using MATLAB mixed integer linear programming (MILP) toolbox. The findings demonstrate that a profit could be achieved under the principle of ensuring the charging station’s stable service. Household photovoltaic power generation and electric vehicles are highly dependent on energy sharing between regions. The convenience store charging station service strategy suggested gives a solution to the future issues.

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