نتایج جستجو برای: electric vehicles evs

تعداد نتایج: 194394  

2011
Chenye Wu Hamed Mohsenian-Rad Jianwei Huang

Recent studies have shown that about 70% of the total oil extracted worldwide is consumed in the transportation sector [1]. With rising oil prices, USA and many other countries have set long-term plans to electrify their transportation system and manufacture electric vehicles (EVs) to reduce their oil consumption. It is foreseen that by 2013, approximately 700,000 grid-enabled electric vehicles...

Journal: :Symmetry 2016
Saeid Gholami Farkoush Chang-Hwan Kim Sang-Bong Rhee

Abstract: Electric vehicles (EVs) have been gaining popularity in recent years due to growing concerns about fuel depletion and increasing petrol prices. Random uncoordinated charging of multiple EVs at residential distribution feeders with moderate penetration levels is expected in the near future. This paper describes a high performance voltage controller for the EVs charging system, and prop...

2016
Yixi Xue Jianxin You Xingkun Liang Hu-Chen Liu

Electric Vehicles (EVs) are considered to be a potential viable technology to address the persistent unsustainable problems in transport sector. In this paper, we focus on analyzing the transition processes of EVs in China because the sustainability of developing countries is essential for the worldwide sustainability. The two-round demonstration programs of EVs in China were analyzed by adopti...

2015
Charalampos Marmaras Liana M. Cipcigan Nick Jenkins Steve Carroll Myles Barker

As the number of electric vehicles increases, the impact of their charging on distribution networks is being investigated using different load profiles. Due to the lack of real charging data, the majority of these load impact studies are making assumptions for the electric vehicle charging demand profiles. In this paper a two-step modelling framework was developed to extract the useful informat...

2015
Nan Ding Rajan Batta Changhyun Kwon

The adoption of electric vehicles (EVs) grows in rapid fashion in the transportation industry. However, limited battery capacity of EVs and the lack of charging facilities become challenges to obtain efficient route plans. In this paper, we propose a variant of electric vehicle routing problems considering the limited charging capacity at each station and the possibility of strategic partial re...

This paper proposes a novel decision making framework for an electricity retailer to procure its electric demand in a bilateral-pool market in presence of charging and discharging of electric vehicles (EVs). The operational framework is a two-stage programming model in which at the first stage, the retailer and EV aggregator do their medium-term planning. Determination of retailer's optimum sel...

2011
Koichiro Shimizu Taisuke Masuta Yutaka Ota Akihiko Yokoyama

A large penetration of photovoltaic and wind power generation causes the imbalance between supply and demand in power systems because their output is intermittent. To alleviate the mentioned problem, many researches on Load Frequency Control (LFC) using Electric Vehicles (EVs) as controllable loads have been studied. In this paper, we propose a new LFC method using EVs, which is named the State...

2014
Xin Gong Tao Lin

Large-scale development of electric vehicles (EVs) will have a significant impact on the power grid with their great demand for electric power consumption. It is necessary to design the optimal charging scheme for EVs. In this paper, we propose a centralized and a decentralized scheme of optimal decisionmaking on charging of EVs based on a dynamic pricing model. The objective of both schemes is...

2016
Ian Walker John Kennedy Susanna Martin Henry Rice

We face a likely shift to electric vehicles (EVs) but the environmental and human consequences of this are not yet well understood. Simulated auditory traffic scenes were synthesized from recordings of real conventional and EVs. These sounded similar to what might be heard by a person near a major national road. Versions of the simulation had 0%, 20%, 40%, 60%, 80% and 100% EVs. Participants he...

2014
Xingping Zhang Yanni Liang

Electric vehicles (EVs) have prominent advantages for reducing CO2 emissions and alleviating the dependence on fossil fuel consumption in the transport sector. Therefore, many countries have set targets for EV development in recent years and have employed a number of policies to achieve environmental objectives and alleviate the energy pressure. Despite the fact that the adoption of EVs has inc...

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