电动汽车应用中的无线电力传输系统

来源 :北京理工大学 | 被引量 : 0次 | 上传用户:lxs000
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The world is developing faster than ever due to advancement in the technology.In this era of development,Wireless Power Transfer technology can facilitates many aspects of life especially in charging Electric Vehicles.In applications where conventional cables and connectors became unfeasible and very difficult to implement,wireless power transfer proves the only way of transferring power between the source and load – either for providing safety benefits,convenience or because of the non-existence of any other solution.In case of hazardous conditions or any natural calamity occurs in which all the wiring systems broke down wireless power transfer is the efficient solution.WPT technology works on the range of power levels and distances using varying frequency levels and electronic devices.The main applications of this technology can range from low power transfer of homes and offices to high power transfer for industrial sector.Applications of the WPT technology are increasing day by day therefore this technology is making its way towards the future technological schema and hence has the potential to play a vital role in present and future power transfer technologies.The idea of using WPT technology for charging an Electric Vehicle is very momentous.In early 1900 s,since the beginning of locomotive era,electric vehicles(EVs)have been manufactured.Along with battery issues,EVs cost,limited range and slow energy filling also became a setback that limit production of EVs on large scale.But properties of EV being noise free,cheap,environment friendly and affordable has not let this technology die and car manufacturers make several attempts and eventually come up with reliable and user-friendly ideas to make EVs popular again.In modern years,some of the main auto manufacturers GM,Tesla Motors,Nissan,and Toyota etc.have shown curiosity in wireless charging technology and have proclaimed that sometimes in near future they will introduce WPT chargers for their EVs.Also,there are numerous research groups in countless universities which are pursuing research and analysis in this field.Keeping the importance of WPT systems for Electric Vehicles,in this dissertation,systematic procedure to make a WPT system is discussed.Starting from a very basic design criteria of a WPT system which is to transfer maximum power to a larger distance.Then stating a way to increase efficiency which to use high frequency in the system then determining its drawback that high frequency will make impedance of the system,turns more inductive in nature.Proposing another way to increase power transfer is applying high input power but it has its own consequence which is more power wastage and high losses.Further proposing a more useful technique which is to use compensation capacitors on both primary and secondary sides of a wireless transformer.By making system work at resonance frequency,these compensation capacitors can delete the effect of inductances of the windings results in impedance become resistive in nature.Different conditions are also given to make system bifurcation free and at the end reasons are also given,for choosing SS topology for further designing of the WPT system in EV applications.Later power electronics requirements for designing and making an efficient solution for WPT system in EV applications are discussed.With power efficiency being the major criteria to study,different solutions for less losses and more power transfer capability are discussed.Further,electronic components with good efficiency and performance are being predicted for better EVs charging.In the next chapters,how these power electronics components are used for designing WPT system in terms of simulation and hardware prototype are discussed.Far ahead with calculating self and mutual-inductances,simulation of main components of WPT system are shown and discussed in detail.Next depicting the process of utilizing power electronics components and their simulated results for designing WPT system in terms of practical knowledge and hardware prototype is formed.In later chapter,results of both simulation and practically made hardware prototype are analyzed and discussed in detail.At the end of this master dissertation,future recommendations are given for the further improvements in the design and complexity of the WPT System.
其他文献
协作型机器人的相关技术研究是全球工业机器人行业的研究热点之一,机器人控制系统对协作型机器人的性能起关键性作用。鉴于目前市场上成熟的机器人控制系统存在成本高、应用功能受限、底层控制算法不开放等问题,本课题基于CAN总线进行了协作型六轴机器人控制系统的开发设计,对机器人运行过程中涉及的运动学问题、碰撞检测问题、轨迹规划问题提出了解决算法,实现了六轴机器人的基本运动功能。本课题的主要工作内容如下:(1)
目的:本文探讨辽东楤木叶总皂苷对化疗荷瘤小鼠的减毒作用。方法:本课题采用MCF-7乳腺癌荷瘤小鼠为模型,采用不同剂量的辽东楹木叶总皂苷(ETS)与氟尿嘧啶(5-Fu)联合给药,通过
冻原高山草地是我国面积和年碳汇潜力最大的草地类组,生态地位十分重要,研究其空间分布并分析该类组草地上家畜养殖规模影响因素对于引导牧户合理放牧,遏制草地退化,确保我国
五味子为木兰科五味子(Schisadra chinensis Turcz.Baill.)的成熟果实,习称“北五味子”。2010版《中国药典》对五味子药材通过测定五味子醇甲控制五味子的质量。显然,在中药
伴随着我国社会经济的发展,我国银行业也飞速发展。就像企业面临的挑战越来越多样和复杂,竞争也不断增加,银行业也面临着诸多挑战和竞争。人力资源管理是银行业面临的诸多挑战之一。目前,人力资源出现多样化问题,尤其是企业组织内部员工的多样化摆在各类企业组织的管理日程之上。如何实现人力资源多样化管理是新形势下企业组织人力资源管理过程和企业发展进程中无法回避的客观事实。如何应对企业组织和员工群体多样化给人力资源
随着国民经济的快速发展,企业的税务问题逐渐成为社会各界普遍关注的重点,由于涉税问题处理不科学给企业带来不良影响的案例不在少数,企业也意识到了税务风险管控的重要性。房地产行业在中国经济的发展过程中,起到了极大的推动作用,其被誉为国民经济的发展支柱。与其他行业相比,房地产行业相对特殊,其涉税状况综合繁琐,流程复杂,因此其税务风险相对较高且贯穿房地产项目始终。目前,税务风险管理理论在我国房地产企业管理中
目的:分析研究区县死亡现状和气温现状,评价每日平均气温对居民死亡的影响效应,为应对气候变化合理配置卫生资源提供依据。方法:本研究收集并描述2016年研究区县死亡率、死因
啦啦操是一项在美国起源并逐步发展为一项世界范围内流行的新兴体育项目,它因表演奔放热情且极具感染力而受全世界人民的喜爱。2002年,啦啦操这项具有独立体育运动特征的运动传入中国后,无论是在推广普及方面还是在国际赛事方面,其发展都是非常迅猛的,发展潜力亦是有很大空间。然而其技术项目的发展速度远远大于理论上的研究,尤其是对啦啦操相关方面的综述研究甚少。因此,本文在中国知网数据库已有文献的研究基础上,选取
背景:阿尔茨海默病是一种起病隐匿的进行性发展的神经系统退行性疾病。至今病因不明,发病机制复杂。西药治疗靶点单一,不能兼顾AD的多环节病理改变的特点,效果局限。中医中药
目的:研究HIV患者中结核分枝杆菌感染对病毒储存库的影响。方法:回顾性分析上海市公共卫生中心近2年收治的非机会性感染的HIV患者35例以及HIV患者中结核分枝杆菌感染者30例,