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2017 IEEE Transportation Electrification Conference (ITEC-India)最新文献

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Numerical analysis of thermal and mechanical field in the high temperature permanent magnet synchronous Machine 高温永磁同步电机的热场和力学场数值分析
Pub Date : 2017-12-13 DOI: 10.1109/ITEC-INDIA.2017.8333712
K. Komeza, M. Lefik, E. N. Juszczak, D. Roger, N. Takorabet, F. Meibody-Tabar
The paper describes a 3D analysis of the thermal field in permanent magnet synchronous machine able to work at high internal temperature (HT° machine). The 3D coupled fluid-thermal and mechanical model of the machine is employed to obtain the distribution of thermal field and the airflow; it calculates the average temperature of the most sensitive parts such as coils and permanent magnets. The impact of the magnetic wedges closing the slots on the cogging torque and temperature distribution is analyzed. The points of the highest temperature inside analyzed machine are localized too. The computer simulations are compared with the measurements.
本文对高温永磁同步电机(HT°电机)的热场进行了三维分析。采用机器的三维流-热-力学耦合模型,得到了热场和气流的分布;它计算最敏感部件的平均温度,如线圈和永磁体。分析了磁楔闭合槽对齿槽转矩和温度分布的影响。分析机内的最高温度点也进行了定位。计算机模拟结果与实测结果进行了比较。
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引用次数: 4
Combined power installations for the of heavy-duty and off-road vehicles 用于重型和越野车辆的联合动力装置
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333839
R. Kurmaev, K. Karpukhin, S. Korkin, A. Terenchenko
The paper describes the different versions of the active road trains, which can consist of a traction vehicle and trailer parts with a combined power installation. These vehicles are intended for use in difficult road conditions. The article contains the advantages of stepless variable transmission are compared with a mechanical one. The results of calculating engine power for various road conditions are shown. The presented transport system can also be operated in autonomous (pilotless) mode.
本文描述了不同版本的主动式公路列车,它可以由牵引车辆和拖车部分组成,并具有联合动力装置。这些车辆是为在困难的路况下使用而设计的。文章对无级变速与机械变速的优点进行了比较。给出了不同路况下发动机功率的计算结果。提出的运输系统也可以在自主(无人驾驶)模式下运行。
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引用次数: 3
Engine mount design technique to address vehicle level Buzz, Squeak & Rattle 发动机悬置设计技术,以解决车辆水平的嗡嗡声,吱吱声和嘎嘎声
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333721
S. Hazra, Isha Pathak
In the highly competitive global automotive market and with the taste of customer becoming more refined, the need to develop high quality products and achieve product excellence in all areas to obtain market leadership is critical. Buzz, squeak and rattle (BSR) is the automotive industry term for the audible engineering challenges faced by all vehicle and component engineers. Minimizing BSR is of paramount importance when designing vehicle components and whole vehicle assemblies. Focus on BSR issues for an automobile interior component design have rapidly increased due to customer's expectation for high quality vehicles. Also, due to advances in the reduction of vehicle interior and exterior noise, engine mounts have recently been brought to the forefront to meet the vehicle interior sound level targets. Engine mounts serve two principal functions in a vehicle, vibration isolation and engine support. The objective of this paper to experimentally analyze the impact of conventional engine mount design on the rattle and whistling noise audible from the engine mounts when the vehicle is subjected to rough road conditions and pot holes at slow speeds. The test methodology demonstrates how to simulate and co-relate the actual vehicle level noise on a BSR 4 poster test rig. A design change is proposed to abate the rattle noise from engine mounts considering the numerous variables involved and without affecting the critical NVH (Noise, Vibration and Harshness) and durability performance parameters. The level of noise reduction achieved is quantified through the substantial reduction in BSR demerit score which in turn reflects the improvement in perceived quality of the vehicle, increased customer satisfaction index and improved JD power (JDP) ratings
在竞争激烈的全球汽车市场,随着客户的品味变得更加精致,需要开发高质量的产品,并在所有领域实现产品卓越,以获得市场领导地位是至关重要的。嗡嗡声、吱吱声和嘎嘎声(BSR)是汽车行业术语,指所有车辆和零部件工程师面临的声音工程挑战。在设计车辆部件和整车组件时,最小化BSR是至关重要的。由于客户对高质量汽车的期望,对汽车内饰部件设计的BSR问题的关注迅速增加。此外,由于在降低车辆内外噪音方面的进步,发动机支架最近被带到最前沿,以满足车辆内部的声音水平目标。发动机支架在车辆中有两个主要功能:隔振和发动机支撑。本文的目的是通过实验分析传统的发动机悬置设计对车辆在低速条件下经过崎岖路面和坑洞时发动机悬置发出的嘎嘎声和呼啸声的影响。测试方法演示了如何在BSR 4海报测试台上模拟和关联实际车辆级噪声。考虑到所涉及的众多变量,在不影响关键NVH(噪声、振动和粗糙度)和耐久性性能参数的情况下,提出了一项设计变更,以减少发动机悬置的嘎嘎声。通过大幅降低BSR扣分来量化降噪水平,这反过来反映了车辆感知质量的改善,客户满意度指数的提高和JD功率(JDP)评级的提高
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引用次数: 1
Hybridization — bridge for electrification 杂交——电气化的桥梁
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333878
Pritesh Doshi, Dheeraj Kapur, Ramkumar Iyer
With a lot of good and positive pressure coming from the Government and environmentalists in cleaning up the air, and customer demands for increased efficiency and performance, the automotive industry is exploring options for both conventional and non-conventional ways to upgrade their existing vehicle powertrains. Due to an unfavorable trade-off between battery cost to vehicle range and performance, limited availability of components and charging infrastructure, currently electric vehicles are not at par with conventional IC engine based 2W available in the market. Even after incentive schemes, electric vehicles are not gaining the numbers as they fail to meet customer expectations in terms of performance and use cases. This paper presents work done at Schaeffler on identifying customer expectations and areas of improvement in a 2W. Various hybrid functions and configurations are evaluated for the benefits, component sizing and payback period estimates.
由于政府和环保人士对净化空气施加了许多积极的压力,以及客户对提高效率和性能的要求,汽车行业正在探索传统和非传统的方法来升级现有的汽车动力系统。由于电池成本与车辆续航里程和性能之间的不利权衡,零部件和充电基础设施的可用性有限,目前电动汽车无法与市场上基于传统IC发动机的2W相提并论。即使有了激励计划,电动汽车也没有获得足够的销量,因为它们在性能和用例方面未能满足客户的期望。本文介绍了舍弗勒在2W中识别客户期望和改进领域方面所做的工作。评估了各种混合功能和配置的效益、组件规模和投资回收期估计。
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引用次数: 0
Reliable detection of open-circuit faults in cascaded H-bridge multilevel inverter via current residual analysis 基于电流残差分析的级联h桥多电平逆变器开路故障可靠检测
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333869
K. Thantirige, S. Mukherjee, M. Zagrodnik, C. Gajanayake, A. Gupta, S. K. Panda
Fault diagnosis in Cascaded H-bridge (CHB) inverter-fed drives is an important task that increases the reliability and safety of such systems. The need for fault diagnostics is particularly acute on account of the large number of power semiconductor devices, which increases the probability of device faults, including open-switch faults. However, due to the wide variety of faults that may occur it may be difficult to detect particular faults using conventional techniques. Therefore, fault classification is required for the identification of the possible fault types. A simple classification method is proposed in this paper to identify the type of fault based on the current waveform. The proposed method does not require additional current sensors but relies greatly on pre-defined threshold limits. Simulation results are presented to verify the effectiveness of the proposed method.
级联h桥变频器故障诊断是提高系统可靠性和安全性的一项重要任务。由于功率半导体器件数量庞大,增加了器件故障(包括开路开关故障)的概率,因此对故障诊断的需求尤为迫切。然而,由于可能发生的各种各样的故障,使用传统技术可能很难检测到特定的故障。因此,需要对故障进行分类,识别可能出现的故障类型。本文提出了一种简单的基于电流波形的故障类型识别方法。该方法不需要额外的电流传感器,但很大程度上依赖于预定义的阈值限制。仿真结果验证了该方法的有效性。
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引用次数: 7
Thermal modelling of dual-stator five-phase permanent magnet synchronous generator 双定子五相永磁同步发电机的热建模
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333853
Raja Ram Kumar, S. Singh, R. Srivastava
In present scenario permanent magnet (PM) machines are widely used due to its higher power density, better speed versus torque characteristics, high dynamic response and high efficiency. Thermal model is generally used for the design improvement of a machine and to assess the loading capability under different working conditions. This paper presents the thermal modelling, based on lumped parameters, for a natural-cooled dual stator five phase permanent magnet synchronous generator (PMSG). The model proposed in this paper has twelve nodes to find temperature in different parts of the machine. Model is developed in MATLAB environment and the results are validated using Finite element method(FEM) results. Though Finite element thermal model is considered to be more accurate than lumped parameter thermal model, it takes significant time for simulation and design improvement.
永磁电机具有较高的功率密度、较好的转矩特性、高的动态响应和高效率等优点,在目前的应用中得到了广泛的应用。热模型通常用于机器的设计改进和评估不同工况下的负载能力。本文建立了基于集总参数的自然冷却双定子五相永磁同步发电机的热模型。本文提出的模型有12个节点来计算机器不同部位的温度。在MATLAB环境下建立了模型,并用有限元法(FEM)结果验证了模型的正确性。虽然有限元热模型被认为比集总参数热模型更精确,但它需要大量的时间进行仿真和设计改进。
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引用次数: 16
Direct torque control of symmetrical six-phase induction machine using nine switch inverter 使用九开关逆变器对对称六相感应机进行直接转矩控制
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8356952
Sohit Sharma, M. Aware, Apekshit Bhowate
This paper presents the direct torque control (DTC) scheme for symmetrical six-phase induction machine by using Nine Switch Inverter (NSI). When this motor is controlled by conventional two level inverter, it provides 64 voltage vectors with switch count of 12. The proposed inverter is nine-switch two level having capability to produce 27 voltage vectors. The DTC control is implemented with these available voltage vectors by this inverter and flux of xy subspace is eliminated for the performance improvement. The torque ripple reduction is achieved by using five-level torque comparator. The performance is presented through simulation results and confirmed through hardware implementation.
本文介绍了利用九开关逆变器(NSI)对对称六相感应电机进行直接转矩控制(DTC)的方案。该电机由传统的两电平逆变器控制时,开关数为 12,可提供 64 个电压矢量。拟议的逆变器是九开关两电平逆变器,能够产生 27 个电压矢量。该逆变器利用这些可用的电压矢量实现了 DTC 控制,并消除了 xy 子空间的磁通量,从而提高了性能。通过使用五级转矩比较器,可降低转矩纹波。性能通过仿真结果进行了展示,并通过硬件实现进行了确认。
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引用次数: 7
A study on effect of coil structures and core configurations on parameters of wireless EV charging system 线圈结构和磁芯配置对电动汽车无线充电系统参数影响的研究
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8356954
M. Kavitha, P. B. Bobba, D. Prasad
Wireless Power Transfer System (WPTS) is gaining more attention across low power to high power applications. It is a convenient, safer, reliable, and user-friendly solution to wireless Electric Vehicle (EV) charger users. In WPTS, large air-gap between coils may cause high leakage of magnetic fields and it may also lower the coupling factor (k). In such systems, selection of coil structure and core configuration plays a key role to reduce the magnetic leakage. In this paper, a thorough mathematical analysis of various coil structures has been presented and observed the change in inductance from one coil structure to another. A finite element method is used in this paper to study the effect of coil structure on self-inductance, mutual inductance and coupling factor between the coils. This paper also provides the numerous core configurations, which have been added to WPTS and simulated to find its effect on power transfer efficiency between transmitter and receiver. The analysis on various coil-core configurations are performed for distinct air gaps between the transmitter and the receiver and found the supreme coil-core configuration to achieve the better coupling between them.
无线电力传输系统(WPTS)在低功率到高功率的应用中越来越受到关注。它是一种方便、安全、可靠、人性化的无线电动汽车充电器解决方案。在WPTS中,线圈之间的气隙大,会导致磁场的高漏泄,也会降低耦合系数(k)。在这种系统中,线圈结构和铁芯配置的选择对减少漏磁起着关键作用。本文对各种线圈结构进行了深入的数学分析,并观察了不同线圈结构间电感的变化。本文采用有限元方法研究了线圈结构对线圈间自感、互感和耦合系数的影响。本文还提供了多种核心配置,并对WPTS进行了仿真,以找出其对收发端功率传输效率的影响。针对不同的气隙,对不同的线圈-铁心结构进行了分析,找到了最佳的线圈-铁心结构,以实现两者之间更好的耦合。
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引用次数: 2
Hubload — causes, effects and mitigation measures on a P0 electrical machine in a typical mild hybrid electric vehicle powertrain 轮毂负荷-典型轻度混合动力汽车动力系统中P0电机的原因、影响和缓解措施
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333855
L. Sethuraman, Muhammad Haris
Hybrid Electric Vehicles based on P0 architecture have gained popularity in recent years due to the FE (Fuel Efficiency) improvement and emission reduction benefit it offers, at lesser cost and integration effort compared to other hybrid architectures. Mechanical stress on the P0 electrical machine due to the higher operating loads and dynamics of FEAD (Front End Accessory Drive) system is a major challenge involved in the integration of P0 electrical machine to the powertrain. This paper discusses causes and effects of excessive hub load on P0 electrical machine and measures identified to mitigate the excessive hub load and torsional torque are presented. This paper also describes the measurement setup, experiment and analysis methodology followed for hub load and torsional torque measurement. The measurement involves different vehicle maneuvers in different temperature conditions. Details on how the experiment is derived is also mentioned in this paper.
基于P0架构的混合动力电动汽车近年来越来越受欢迎,因为它提供了FE(燃油效率)改善和减排效益,与其他混合动力架构相比,成本更低,集成工作更少。由于更高的工作负载和FEAD(前端附件驱动)系统的动力学,P0电机上的机械应力是P0电机与动力总成集成的主要挑战。本文讨论了P0电机轮毂负荷过大的原因和影响,提出了减轻轮毂负荷过大和扭转力矩的措施。本文还介绍了轮毂载荷和扭矩测量的测量装置、实验和分析方法。测量涉及不同温度条件下的不同车辆机动。本文还详细介绍了实验的推导过程。
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引用次数: 1
Route to electrification for trucks & busses in India 印度卡车和公共汽车的电气化路线
Pub Date : 2017-12-01 DOI: 10.1109/ITEC-INDIA.2017.8333856
Martin Ackerl, M. Kordon, H. Schreier, Heinz Petutschnig, Matthias Huetter
The legislation worldwide drives the demand for pure electrically driven trucks and busses for urban distribution. To fulfill such legislative requirements, cost effective measures must be taken into account for commercial vehicles' powertrain electrification. These measures could be to use electric components from passenger car suppliers and adapt them to commercial vehicle demands like increased durability. Hence, this publication will present solutions, to ensure product reliability over the entire use of the vehicle also under hot climate conditions based on passenger car components.
世界范围内的立法推动了对纯电动卡车和公共汽车的需求,用于城市配送。为了满足这些立法要求,必须考虑到商用车动力总成电气化的成本效益措施。这些措施可能是使用乘用车供应商提供的电子元件,并使其适应商用车的需求,比如提高耐用性。因此,本出版物将提出解决方案,以确保在炎热气候条件下,基于乘用车部件的产品在车辆的整个使用过程中的可靠性。
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引用次数: 1
期刊
2017 IEEE Transportation Electrification Conference (ITEC-India)
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