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نتیجه جستجو - ایستگاه شارژ

تعداد مقالات یافته شده: 4
ردیف عنوان نوع
1 A dynamic charging strategy with hybrid fast charging station for electric vehicles
یک استراتژی شارژ پویا با ایستگاه شارژ سریع هیبریدی برای وسایل نقلیه برقی-2020
The popularity of electric vehicles (EV) have been on the rise with technological advancements and environmental concerns. The charging time and charging demand are important challenges for EV adaptation. In order to address these challenges, a DC fast charging technology with a dynamic energy management system is proposed in this study. However, DC fast chargers require high power demand periods to reduce the charging time. This, in turn, will cause negative effects on the grid such as stability, resilience, and efficiency problems. The purpose of the study is to evaluate a hybrid DC fast charging station with the aim of reducing peak demand during charging periods. The proposed energy management algorithm together with the dynamic data use provides more reliable results on such systems operations. With the proposed control algorithm, both peak demand from the grid is substantially reduced by 45% and the battery life span is extended thanks to more controlled charge/discharge coordination.
Keywords: Electric vehicle | fast charging station | demand response | hybrid energy resources | dynamic energy management
مقاله انگلیسی
2 Asymptotic performance evaluation of battery swapping and charging station for electric vehicles
ارزیابی عملکرد مجانب تعویض باتری و ایستگاه شارژ برای وسایل الکترونیک-2018
A battery swapping and charging station (BSCS) is an energy refueling station, where (i) electric vehicles (EVs) with depleted batteries (DBs) can swap their DBs for fully-charged ones, and (ii) the swapped DBs are then charged until they are fully-charged. Successful deployment of a BSCS system necessitates a careful planning of swapping- and charging-related infrastructures, and thus a comprehensive performance evaluation of the BSCS is becoming crucial. This paper studies such a performance evaluation problem with a novel mixed queueing network (MQN) model and validates this model with extensive numerical simulation. We adopt the EVs’ blocking probability as our quality-of-service measure and focus on studying the impact of the key parameters of the BSCS (e.g., the numbers of parking spaces, swapping islands, chargers, and batteries) on the blocking probability. We prove a necessary and sufficient condition for showing the ergodicity of the MQN when the number of batteries approaches infinity, and further prove that the blocking probability has two different types of asymptotic behaviors. Meanwhile, for each type of asymptotic behavior, we analytically derive the asymptotic lower bound of the blocking probability.
keywords: Battery swapping and charging station |Electric vehicles |Mixed queueing network |Asymptotic analysis |Capacity planning
مقاله انگلیسی
3 تأثیر شارژ خودروهای برقی بر کیفیت انرژی (توان، برق)
سال انتشار: 2017 - تعداد صفحات فایل pdf انگلیسی: 2 - تعداد صفحات فایل doc فارسی: 7
خودروهای برقی (EV) یک جایگزین انرژی پاک برای وسایل نقلیه با انرژی بنزین و انرژی برق هستند. آن‌ها بخش حیاتی خودرو سازی کنونی و آینده را تشکیل می‌دهند. خودروهای برقی که بارهای غیرخطی دارند می‌توانند بر کیفیت انرژی شبکه تاثیر بگذارند. در این مقاله، ما دیدگاه نوسانات در ضریب انرژی و سطوح هارمونیک کل (THD) را در زمانی که تعداد مختلفی از وسایل نقلیه الکتریکی (دو چرخه و چهار چرخ) به سیستم انرژی متصل شده‌اند، ارائه می‌کنیم. این سیستم در سیمیولینک (Simulink) شبیه سازی و مورد مطالعه قرار گرفت. در اینجا، یک نیروگاه انحصاری که انرژی را تحت بار مبنا و شرایط اوج بار تامین می‌کند در نظر گرفته می‌شود.
لغات کلیدی: وسایل الکتریکی | ایستگاه شارژ | نیروگاه انحصاری انرژی | اعوجاج هارمونیک کل | عامل انرژی | بار اصلی | بار پیک (اوج بار)
مقاله ترجمه شده
4 EV fast charging stations and energy storage technologies: A real implementation in the smart micro grid paradigm
ایستگاه های شارژ سریع ev و فن آوری ذخیره سازی انرژی: اجرای واقعی در پارادایم شبکه میکرو هوشمند-2015
In the last years, electric vehicles (EVs) are getting significant consideration as an environmentalsustainable and cost-effective alternative over conventional vehicles with internal combustion engines (ICEs), for the mitigation of the dependence from fossil fuels and for reduction of Green-House Gasses (GHGs) emission. However, many challenges are still ongoing to their large scale implementation. Among them, the negative impact on the electrical grid operation in case of an uncoordinated contemporary charging of a huge number of EVs. In the recent literature different solutions are proposed for handling the peak demand of EVs and the related problems. One answer is offered by the implementation of EV charging strategies, through aggregation agents, for containing the impact on the grid, guaranteeing the quality ofthe service. The implementation ofa real charging strategy is strictly related to a deployment of smart-grid technologies, such as smart meters, Information and Communication Technologies (ICTs) and energy storage systems (ESSs). In particular ESSs are playing a fundamental role in the general smart grid paradigm, and can become fundamental for the integration in the new power systems of EV fast charging stations of the last generation: in this case the storage can have peak shaving and power quality functions and also to make the charge time shorter. In the present paper, an overview on the different types of EVs charging stations, in reference to the present international European standards, and on the storage technologies for the integration of EV charging stations in smart grid is reported. Then a real implementation of EVs fast charging station equipped with an ESS is deeply described. The system is a prototype, designed, implemented and now available at ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) labs. A wide experimental activity has been performed on the prototype system in order to test its functionalities in the integration in a smart grid available at the same ENEA lab, including a smart metering system. The integration has been possible thanks to the use of a customized communication protocol, developed by the researchers and here described. The results of the experimental tests show that the system has a good performance in the implementation of peak shaving functions, in respect of the main distribution grid, making the prototype like a network nearly zero-impact system. Keywords: Charging station Electric vehicle Energy storage ICT Smart grid
مقاله انگلیسی
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