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2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS)最新文献

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Study on three-phase four-leg control technology of permanent magnet synchronous motor in electric vehicle 电动汽车永磁同步电机三相四足控制技术研究
Gao Hanying, Bai Xufeng, Li Weili, Shen Jiafeng
The permanent magnet synchronous motor (PMSM) has many advantages, such as high energy density, high efficiency and high power factor, and its application in electric vehicle is rapidly expanding. The traditional main circuit structure of three-phase three-leg topology with the space-voltage vector pulse width modulation (SVPWM) technology can reduce the winding harmonic currents and meanwhile improve the utilization rate of the DC voltage, thus reduce the torque ripple of the motor and broaden the speed range of motor effectively. However, in a-phase fault, the system reliability will be difficult to be maintained by the traditional topology structure. Therefore, it is limited on some occasions where reliability is strictly required, such as highway traffic, aviation, marine and explosion-proof, etc. On this basis the paper puts forward a three-phase four-leg control system with the fault-tolerant function. Namely, on the basis of traditional three-phase four-leg control system, the fourth leg is added and connected to the motor neutral point, and three dimensional voltage space vector modulation (3D-SVPWM) technique is utilized to drive PMSM, which make PMSM has a good running characteristics and can guarantee system safe and reliable running in the case of the lacking phase or the one-phased open-circuit fault, and in the aspect of electric vehicle drive has higher application value.
永磁同步电动机具有能量密度高、效率高、功率因数高等优点,在电动汽车上的应用正在迅速扩大。传统的三相三支路拓扑主电路结构结合空间电压矢量脉宽调制(SVPWM)技术,可以在减小绕组谐波电流的同时提高直流电压的利用率,从而有效地减小电机的转矩脉动,拓宽电机的调速范围。然而,在a相故障时,传统的拓扑结构将难以维持系统的可靠性。因此,在一些对可靠性要求严格的场合,如公路交通、航空、船舶和防爆等场合受到限制。在此基础上,提出了一种具有容错功能的三相四腿控制系统。即在传统三相四支路控制系统的基础上,增加第四支路并接在电机中性点上,利用三维电压空间矢量调制(3D-SVPWM)技术驱动PMSM,使PMSM具有良好的运行特性,在缺相或单相开路故障情况下也能保证系统安全可靠运行,在电动汽车驱动方面具有较高的应用价值。
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引用次数: 3
Combining energy with power: Lithium-ion capacitors 能量与动力的结合:锂离子电容器
J. Ronsmans, Benoit Lalande
The Lithium Ion Capacitor is an innovative technology which made its entry into the energy storage market more than five years ago. In the meantime, it has evolved into an ideal commercialized solution for closing the application gap between Lithium Ion Batteries and supercapacitors. Combining energy and power with long-term life characteristics, lithium ion capacitors are already used today in hybrid buses, trams, hybrid excavators, medical equipment and power quality equipment amongst other applications. Due to its compact and light design, it is expected that the technology will also be implemented in passenger cars by the end of this decade. Further technology development and high volume production will allow mass deployment of lithium ion capacitors in the energy storage market in the following years. This paper will explain how ULTIMO Lithium Ion Capacitors combine energy with power by discussing: 1) The concept of Lithium Ion Capacitor technology and its positioning on the Ragone plot 2) How Lithium Ion Capacitors can bridge the gap between Lithium Ion Batteries and supercapacitors, in particular by looking at similarities and differences in electrical performance 3) Commercial usage cases in different industrial applications, mobile as well as stationary 4) JSR Group high volume manufacturing plant 5) A vision on the future of Lithium Ion Capacitors.
锂离子电容器是5年前进入储能市场的一项创新技术。与此同时,它已经发展成为缩小锂离子电池和超级电容器之间应用差距的理想商业化解决方案。锂离子电容器将能量和动力与长期寿命特性相结合,目前已用于混合动力公共汽车、有轨电车、混合动力挖掘机、医疗设备和电能质量设备以及其他应用。由于其小巧轻便的设计,预计该技术也将在本十年末应用于乘用车。进一步的技术发展和大批量生产将使锂离子电容器在未来几年在储能市场上大规模部署。本文将通过讨论来解释ULTIMO锂离子电容器如何将能量与功率结合起来:1)锂离子电容器技术的概念及其在Ragone地块上的定位2)锂离子电容器如何弥合锂离子电池和超级电容器之间的差距,特别是通过观察电性能的异同3)不同工业应用中的商业使用案例,移动和固定4)JSR集团大批量制造工厂5)对锂离子电容器未来的展望。
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引用次数: 27
Influence of magnetic wedge on electromagnetic field distribution of permanent magent traction motor 磁楔对永磁牵引电动机电磁场分布的影响
Weili Li, Z. Cao, Peng Cheng, D. Huang, Dong Li, Jiafeng Shen, Weihong Tang
High-speed train permanent magnet traction motor stator slot installation with magnetic wedge, which can improve the air gap magnetic flux density waveform and reduce the harmonic component. However, in the process of high-speed train running, the motor vibration may cause magnetic wedge fall off, which will increase the air gap flux density harmonics. These harmonics will produce more eddy current losses on the rotor surface, thereby affecting the efficiency of the motor. Thus, this paper takes a 315kW permanent magnet synchronous motor as an example. It has established a mathematical model of two-dimensional transient electro-magnetic field prototype stator with non-magnetic wedge. By using time stepping finite element method for solving 2D electromagnetic field equation, the calculation results of the starting current and starting torque are compared with the experiment results to verify the accuracy of the calculation method. The paper investigates the impact on the motor performance by employing different relative permeability magnetic wedge during starting and normal operation. At the same time, this paper also discusses magnetic wedge falling off number and dropping position on the influence of air gap flux density harmonics, eddy current loss on rotor surface and motor efficiency.
高速列车永磁牵引电机定子槽安装有磁楔,可以改善气隙磁通密度波形,降低谐波分量。然而,在高速列车运行过程中,电机振动可能导致磁楔脱落,从而增加气隙磁通密度谐波。这些谐波会在转子表面产生更多的涡流损耗,从而影响电机的效率。因此,本文以315kW永磁同步电机为例。建立了二维非磁楔型瞬态电磁场原型定子的数学模型。采用时间步进有限元法求解二维电磁场方程,将起动电流和起动转矩的计算结果与实验结果进行对比,验证了计算方法的准确性。本文研究了不同磁导率磁楔在起动和正常运行时对电机性能的影响。同时,还讨论了磁楔脱落数和脱落位置对气隙磁通密度谐波、转子表面涡流损耗和电机效率的影响。
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引用次数: 7
Heatsink design for high power density converter in aircraft applications: Parameter sensitivity analysis 飞机应用中高功率密度转换器的散热器设计:参数灵敏度分析
A. Sakanova, S. Yin, Yong Liu, Kai Men, Jiyun Zhao, K. See, K. Tseng, A. Nawawi, C. Tong, Yitao Liu, R. Simanjorang, C. Gajanayake, A. Gupta
Cooling systems significantly contribute to the total mass and/or volume of power electronic systems especially for aerospace application where it will directly increase the operating cost of the aircraft. This paper investigates the heat sink parameters that contribute to the thermal resistance as well to weight of the high power density converter. The lowest heat sink thermal resistance for any type of coolant can be achieved by choosing a greater number of flow channels and thicker fin thickness. To minimize the weight, lower number of channels and thinner fins are desirable. The design case of 50kW power converter with 1.16% power loss using the most promising coolant in aircraft application is investigated and presented. Manufacturing constrains of the heat sink have also been taken into account.
冷却系统对电力电子系统的总质量和/或体积有很大的贡献,特别是在航空航天应用中,它将直接增加飞机的运行成本。本文研究了影响高功率密度变换器热阻和重量的散热器参数。对于任何类型的冷却剂,最低的散热器热阻可以通过选择更多的流道和更厚的散热片厚度来实现。为了使重量最小化,需要更少的通道和更薄的鳍。介绍了一种功率损耗为1.16%的50kW功率变换器的设计实例,该变换器采用了飞机上最具应用前景的冷却剂。散热器的制造限制也被考虑在内。
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引用次数: 8
Automated stability assessment of more electric aircraft electrical power systems 更多电动飞机电力系统的自动稳定性评估
C. Hill, Kongpan Areerak, Tao Yang, S. Bozhko, M. Odavic
This paper has details the theoretical background, development and application of a newly developed Automated Stability Assessment Tool for More Electric Aircraft Electrical Power Systems. This tool is shown to provide an easy to use and extremely flexible way for system designers to analyze Electrical Power System stability. It is shown how system parameters can be easily varied in order to investigate their impact on Electrical Power System stability. This methodology could therefore save significant time and money, both by accelerating the design process, and by helping design engineers to select the lowest cost components needed to ensure Electrical Power System stability.
本文详细介绍了新开发的多电动飞机电力系统稳定性自动评估工具的理论背景、发展和应用。该工具为系统设计人员提供了一种易于使用且非常灵活的方法来分析电力系统稳定性。为了研究系统参数对电力系统稳定性的影响,说明了系统参数是如何容易变化的。因此,这种方法可以节省大量的时间和金钱,既可以加快设计过程,又可以帮助设计工程师选择成本最低的组件,以确保电力系统的稳定性。
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引用次数: 4
Heterogeneous LTE/Wi-Fi architecture for ITS traffic control and infotainment 用于ITS交通控制和信息娱乐的异构LTE/Wi-Fi架构
Noha M. Sadek, Hassan H. Halawa, R. Daoud, H. Amer, Nora A. Ali
Intelligent Transportation Systems (ITS) make use of advanced technologies to enhance road safety and to improve traffic efficiency. In order to assist passengers to travel safely, efficiently and conveniently, several application requirements have to be met simultaneously. For this purpose, this paper proposes a heterogeneous LTE/Wi-Fi vehicular system that supports both infotainment and ITS traffic control data. A performance simulation-based study is conducted to validate the feasibility of the proposed system in an urban vehicular environment. The system performance is evaluated in terms of data loss, data rate, delay and jitter. The results indicate that the proposed system offers acceptable performance that meets the requirements of both infotainment and traffic control.
智能交通系统(ITS)利用先进的技术来加强道路安全,提高交通效率。为了帮助乘客安全、高效、便捷地出行,必须同时满足几个应用要求。为此,本文提出了一种支持信息娱乐和ITS交通控制数据的异构LTE/Wi-Fi车载系统。为了验证该系统在城市车辆环境中的可行性,进行了基于性能仿真的研究。从数据丢失、数据速率、延迟和抖动等方面对系统性能进行了评估。结果表明,该系统具有良好的性能,满足信息娱乐和交通控制的要求。
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引用次数: 13
FABRIC's approach towards the estimation of energy storage system requirements for grid impact reduction FABRIC对减少电网冲击的储能系统需求估计的方法
A. Amditis, T. Theodoropoulos, Yannis Damousis, J. Sallán, H. Bludszuweit
In recent years there has been a significant turn towards the research and development of electric vehicles. There are several government incentives towards decarbonizing the transport sector which is a major atmospheric pollutant via greenhouse gases that conventional ICE gasoline and petrol-fueled vehicles produce during their operation. In parallel, major vehicle manufacturers have introduced hybrid and fully electric vehicles to the market trying to reach the critical mass of buyers that will result to large penetration of electromobility in the transportation sector. EVs are expected to have a significant impact on future energy supply and distribution systems since the energy required for the propulsion of millions of vehicles will be shifted from fossil fuel to electricity provided by the grid. The increased demand and the characteristics of the load, especially for new FEV charging modes such as stationary and dynamic dictate big investments towards the enlargement of grid capacity, the increased integration of ICT towards the creation of smart grids and installation of technical solutions that will reduce the impact FEVs will have on the grid stability. This paper presents the concept of FEV dynamic charging which is the focus of FABRIC IP, makes an initial assessment on the foreseen impact this charging mode will have on the grid and proposes technical solutions for increasing grid stability.
近年来,电动汽车的研究和开发出现了重大转变。交通运输部门是传统内燃机汽油和以汽油为燃料的汽车在运行过程中产生的温室气体,是主要的大气污染物。与此同时,主要的汽车制造商已经向市场推出了混合动力和全电动汽车,试图达到临界数量的买家,这将导致电动汽车在交通运输领域的大规模渗透。预计电动汽车将对未来的能源供应和分配系统产生重大影响,因为推动数百万辆汽车所需的能源将从化石燃料转向电网提供的电力。需求的增加和负荷的特点,特别是对于固定和动态等新的FEV充电模式,要求对扩大电网容量进行大量投资,增加信息通信技术的整合,以创建智能电网,并安装技术解决方案,以减少FEV对电网稳定性的影响。本文提出了FABRIC IP关注的FEV动态充电的概念,对该充电模式对电网的预期影响进行了初步评估,并提出了提高电网稳定性的技术解决方案。
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引用次数: 0
SiC MOSFET Dual Active Bridge converter for harsh environment applications in a more-electric-aircraft SiC MOSFET双有源桥式变换器,适用于更苛刻的电动飞机环境
R. Mastromauro, M. C. Poliseno, S. Pugliese, F. Cupertino, S. Stasi
Due to size and weight limitations, possible integrations of power electronics devices with electrical machines and propulsion engines are welcome in More-Electric-Aircrafts (MEA). Consequently, power converters are required to operate in harsh environments with high temperatures. SiC power devices are preferable in this context since they can tolerate high junction temperature and contribute reducing size and weight of the cooling system. In this paper, a 270/28 V SiC MOSFET Dual Active Bridge (DAB) converter is presented. In particular, its thermal behavior in harsh environments is investigated. Using two different tools, the performances of the system are analyzed at two levels: the single SiC MOSFET power module and the complete DAB converter. Results confirm the feasibility of the proposed power stage also when the ambient temperature rises above 300 C.
由于尺寸和重量的限制,电力电子设备与电机和推进发动机的可能集成在电动飞机(MEA)中受到欢迎。因此,电源转换器需要在高温的恶劣环境中工作。SiC功率器件在这种情况下更可取,因为它们可以承受高结温,并有助于减小冷却系统的尺寸和重量。本文设计了一种270/ 28v SiC MOSFET双有源桥转换器(DAB)。特别地,研究了它在恶劣环境下的热行为。使用两种不同的工具,对系统的性能进行了两个层面的分析:单个SiC MOSFET功率模块和完整的DAB转换器。结果也证实了该功率级在环境温度高于300℃时的可行性。
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引用次数: 21
Emerging energy storage solutions for transportation — A review: An insight into road, rail, sea and air transportation applications 新兴的交通能源存储解决方案-综述:对公路、铁路、海运和空运应用的洞察
S. Alahakoon, M. Leksell
Increasing usage of hybrid electric vehicles, plug-in electric vehicles and emerging new concepts in transportation such as electric highways have raised the significant role of energy storage solutions for transportation to its highest level. It is impossible to specify a single energy storage solution that can satisfactorily fulfill the varying performance demands of various applications in transportation. This paper will identify some of the most demanded performance requirements from some of the key applications in transportation and assess the suitability of emerging energy storage solutions against those.
越来越多的混合动力汽车、插电式电动汽车的使用,以及电动公路等交通领域新概念的出现,将能源存储解决方案在交通领域的重要作用提升到了最高水平。不可能指定一种单一的储能解决方案,可以令人满意地满足各种运输应用的不同性能要求。本文将从交通运输的一些关键应用中确定一些最需要的性能要求,并评估新兴储能解决方案的适用性。
{"title":"Emerging energy storage solutions for transportation — A review: An insight into road, rail, sea and air transportation applications","authors":"S. Alahakoon, M. Leksell","doi":"10.1109/ESARS.2015.7101490","DOIUrl":"https://doi.org/10.1109/ESARS.2015.7101490","url":null,"abstract":"Increasing usage of hybrid electric vehicles, plug-in electric vehicles and emerging new concepts in transportation such as electric highways have raised the significant role of energy storage solutions for transportation to its highest level. It is impossible to specify a single energy storage solution that can satisfactorily fulfill the varying performance demands of various applications in transportation. This paper will identify some of the most demanded performance requirements from some of the key applications in transportation and assess the suitability of emerging energy storage solutions against those.","PeriodicalId":287492,"journal":{"name":"2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS)","volume":"320 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133111305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Numerical modeling and simulation analysis of vehicle thermal management system for a power-split hybrid electric vehicle 动力分体式混合动力汽车热管理系统数值建模与仿真分析
C. Shao, Xiaoxia Sun, Guozhu Wang, Yusong Yue, X. Li, Lining Yang
A vehicle thermal management system (VTMS), applied efficient cooling control strategy, has been developed for a power-split hybrid electric vehicle (PSHEV). A numerical integrated simulation model which integrates the VTMS model and vehicle powertrain system model is developed to investigate the dynamic thermal responses and VTMS power consumption of PSHEV under different driving conditions. The heat transfer law of typical driving conditions is achieved by the simulation analysis. Two cooling control strategies are established by the heat transfer law. The thermal responses and VTMS power consumption of PSHEV using different cooling control strategies over a representative combined test driving cycle are estimated. The results demonstrate the cooling control strategy based on fuzzy logic has better performance for the PSHEV on the thermal responses and power consumption saving.
针对功率分体式混合动力汽车(PSHEV),研制了一种采用高效冷却控制策略的车辆热管理系统(VTMS)。为了研究不同工况下PSHEV的动态热响应和VTMS功耗,建立了VTMS模型与整车动力系统模型相结合的数值集成仿真模型。通过仿真分析,得到了典型工况下的换热规律。根据传热规律建立了两种冷却控制策略。估算了不同冷却控制策略下PSHEV在具有代表性的组合试驾周期内的热响应和VTMS功耗。结果表明,基于模糊逻辑的冷却控制策略在热响应和节能方面具有较好的性能。
{"title":"Numerical modeling and simulation analysis of vehicle thermal management system for a power-split hybrid electric vehicle","authors":"C. Shao, Xiaoxia Sun, Guozhu Wang, Yusong Yue, X. Li, Lining Yang","doi":"10.1109/ESARS.2015.7101448","DOIUrl":"https://doi.org/10.1109/ESARS.2015.7101448","url":null,"abstract":"A vehicle thermal management system (VTMS), applied efficient cooling control strategy, has been developed for a power-split hybrid electric vehicle (PSHEV). A numerical integrated simulation model which integrates the VTMS model and vehicle powertrain system model is developed to investigate the dynamic thermal responses and VTMS power consumption of PSHEV under different driving conditions. The heat transfer law of typical driving conditions is achieved by the simulation analysis. Two cooling control strategies are established by the heat transfer law. The thermal responses and VTMS power consumption of PSHEV using different cooling control strategies over a representative combined test driving cycle are estimated. The results demonstrate the cooling control strategy based on fuzzy logic has better performance for the PSHEV on the thermal responses and power consumption saving.","PeriodicalId":287492,"journal":{"name":"2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114829234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS)
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