نتایج جستجو برای: electric vehicles evs

تعداد نتایج: 194394  

2017
Chaoqiang Jiang K. T. Chau Chunhua Liu Christopher H. T. Lee William Holderbaum

With ever-increasing concerns for the safety and convenience of the power supply, there is a fast growing interest in wireless power transfer (WPT) for industrial devices, consumer electronics, and electric vehicles (EVs). As the resonant circuit is one of the cores of both the near-field and far-field WPT systems, it is a pressing need for researchers to develop a high-efficiency high-frequenc...

2016
Dongqi Liu Yaonan Wang Yongpeng Shen

This paper proposed a optimal strategy for coordinated operation of electric vehicles (EVs) charging and discharging with wind-thermal system. By aggregating a large number of EVs, the huge total battery capacity is sufficient to stabilize the disturbance of the transmission grid. Hence, a dynamic environmental dispatch model which coordinates a cluster of charging and discharging controllable ...

2012
Nobuyoshi Mutoh Osamu Nishida Tatsuya Takayanagi Tadahiko Kato Kazutoshi Murakami

This paper describes a driving torque distribution method for front–and-rear-wheel-independent-drivetype electric vehicles (FRID EVs) in which it is possible to get stable steering on a low friction coefficient road surface. This method is characterized by distributing driving torque to the left and right wheels of the front and rear wheels, considering not only load movement of the longitudina...

2014
Roman UHLIG Nils NEUSEL-LANGE Markus ZDRALLEK

To combat the climate change, there is an ongoing shift towards a more decentralized and renewable energy system in Germany. The increasing number of volatile distributed generators and large consumers requires a coordinating smart grid system in order to avoid an expensive grid expansion. Due to the high power consumption, especially the charging process of electric vehicles (EVs) has to be co...

Due to the ever-growing load, especially peak load, the increase in the capacity of plants is inevitable for the response to this growth. Peak load causes increases in customer costs and vast investments in generating and transmission parts. Therefore, restructuring in the electrical industry, competition in the electrical market and Demand Response Programs (DRPs) are of special importance in ...

2017
Xiaofeng Ding Jiawei Cheng Feida Chen Rui Xiong

The DC/DC converters and DC/AC inverters based on silicon carbide (SiC) devices as battery interfaces, motor drives, etc., in electric vehicles (EVs) benefit from their low resistances, fast switching speed, high temperature tolerance, etc. Such advantages could improve the power density and efficiency of the converter and inverter systems in EVs. Furthermore, the total powertrain system in EVs...

Journal: :Small 2022

Energized Composites composites are dual-function structural components that can store electrical energy and be used to build lightweight body shells of electric vehicles (EVs). They also make commercial jets space vehicles. In article number 2107053, Jayan Thomas co-workers address the current challenges by developing a supercapacitor-based energy-storing carbon fiber reinforced polymer functi...

2015
Jun Yang Zhili Zeng Yufei Tang Jun Yan Haibo He Yunliang Wu Josep M. Guerrero

In power systems, although the inertia energy in power sources can partly cover power unbalances caused by load disturbance or renewable energy fluctuation, it is still hard to maintain the frequency deviation within acceptable ranges. However, with the vehicle-to-grid (V2G) technique, electric vehicles (EVs) can act as mobile energy storage units, which could be a solution for load frequency c...

2016
Amela Ajanovic Reinhard Haas

Problems of transport become more pressing with increasing urbanisation. Although EVs (electric vehicles) are considered to contribute to reduction of greenhouse gas emissions and local air pollution caused by passenger car transport, their use is still very modest. The core objective of this paper is to identify the major impact factors for the broader dissemination of EVs in urban areas. We c...

Axial Flux Permanent Magnet (AFPM) machines are attractive candidates for Electric Vehicles (EVs) applications due to their axial compact structure, high efficiency, high power and torque density. This paper presents general design characteristics of AFPM machines. Moreover, torque density of the machine which is selected as main objective function, is enhanced by using Genetic Algorithm (GA) a...

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