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2016 IEEE Transportation Electrification Conference and Expo (ITEC)最新文献

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Energy transfer analysis for capacitor voltage balancing of modular multilevel converters 模块化多电平变换器电容电压平衡的能量传递分析
Pub Date : 2016-07-25 DOI: 10.1109/ITEC.2016.7520283
Binbin Li, Rui Li, B. Williams, Dianguo Xu
Voltage balancing between sub-module (SM) capacitors is essential for reliable operation of the modular multilevel converter (MMC). To facilitate design and understanding of the balancing controllers, this study presents an energy transfer analysis for MMC, which explains how the energy can be independently transmitted from/to one phase, between the upper and lower arms, and among the SMs, of an MMC. Using this analysis, the variables which can be utilized to achieve capacitor voltage balancing are identified. Validity of this study has been verified by experimental results based on a three-phase MMC prototype.
子模块电容器之间的电压平衡是模块化多电平变换器可靠运行的关键。为了便于设计和理解平衡控制器,本研究提出了MMC的能量传递分析,解释了能量如何在MMC的上臂和下臂之间以及sm之间独立地从一个相位传递到一个相位。利用这一分析,确定了可用于实现电容器电压平衡的变量。基于三相MMC原型的实验结果验证了该研究的有效性。
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引用次数: 12
Comparative study between interior and surface permanent magnet traction machine designs 内表面永磁牵引机设计的比较研究
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520249
Rong Yang, N. Schofield, A. Emadi
Interior permanent magnet (IPM) brushless (sychronous) machines are a popular technology choice in commercial hybrid- or all-electric vehicles (HEVs/EVs), such as the Toyota Prius, GM Chevy Volt, Lexus LS, Nissan Leaf, for example. Much is claimed of IPM topologies in terms of their saliency torque contribution, minimum magnet mass, demagnetisation withstand, wide flux-weakening capability and high operational efficiencies when compared to brushless machines having surface mounted permanent magnets. This paper presents the findings of a comparative study assessing the design and performance attributes of an example IPM machine implemented in the Nissan Leaf EV, when compared to a surface permanent magnet (SPM) machine designed within the main Nissan Leaf machine dimensional constraints. The Nissan Leaf IPM traction machine has been widely analysed and there is much public domain data available for the machine. Hence, this machine is chosen as a representative benchmark design against which the SPM machine is assessed. The Nissan Leaf machine is analysed via finite element analysis (FEA) and the results confirmed via published experimental test data. The procedure is then applied to a SPM design and results compared. The study illustrates and concludes that both the IPM and SPM topologies have very similar capabilities with only subtle differences between the design options. The results highlight interesting manufacturing options and materials usage.
内部永磁(IPM)无刷(同步)电机是商用混合动力或全电动汽车(hev / ev)的一种流行技术选择,例如丰田普锐斯、通用雪佛兰Volt、雷克萨斯LS、日产Leaf。与具有表面安装永磁体的无刷电机相比,IPM拓扑结构具有显著的扭矩贡献、最小的磁体质量、抗退磁、广泛的磁弱能力和高的运行效率。本文介绍了一项比较研究的结果,该研究评估了在日产Leaf EV中实施的示例IPM机器的设计和性能属性,并将其与在主要日产Leaf机器尺寸限制内设计的表面永磁(SPM)机器进行了比较。日产Leaf IPM牵引机已被广泛分析,并且有许多公共领域的数据可用于该机器。因此,选择此机器作为评估SPM机器的代表性基准设计。通过有限元分析(FEA)对日产Leaf机器进行了分析,并通过公布的实验测试数据证实了结果。然后将该程序应用于SPM设计并对结果进行比较。该研究说明并得出结论,IPM和SPM拓扑都具有非常相似的功能,在设计选项之间只有细微的差异。结果突出了有趣的制造选择和材料使用。
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引用次数: 13
New perspective to understand winding configurations of even and odd numbers of pole flux-switching permanent magnent machine 为理解奇偶极磁通开关永磁电机绕组结构提供了新的视角
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520250
Ju Hyung Kim, Yingjie Li, Dheeraj Bobba, B. Sarlioglu
This paper presents a novel perspective to understand different winding configurations of even and odd number of rotor pole flux-switching permanent magnet machines. A simple analytical method is used for the calculation of total offset angle of flux linkages by taking into account an offset angle of stator slot and rotor poles. The 12-slot/10-pole and 12-slot/13-pole flux-switching permanent magnet machines are conceptually segregated into two sets of 6-slot/10-pole and 6-slot/13-pole machines, respectively. This is used to address even harmonic elimination and winding configuration properties in even and an odd number of rotor pole configurations. Finite element analysis also verifies the concept.
本文从一个全新的角度来理解奇数、偶数转子极磁通开关永磁电机的不同绕组结构。考虑定子槽与转子极的偏置角,采用一种简单的解析方法计算磁链连杆机构的总偏置角。12槽/10极和12槽/13极磁通开关永磁电机在概念上分别分为两组6槽/10极和6槽/13极电机。这是用来解决偶数谐波消除和绕组配置特性在偶数和奇数转子极配置。有限元分析也验证了这一概念。
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引用次数: 3
Evaluation of torque compensation control algorithm of IPM machines considering the effects of temperature variations 考虑温度变化影响的IPM电机转矩补偿控制算法评价
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520253
Silong Li, B. Sarlioglu, S. Jurkovic, N. Patel, P. Savagian
For automotive applications, accurate torque production capability and high efficiency of the traction motor is very important. However, the performance of widely used interior permanent magnet (IPM) machines is influenced by temperature variations, and temperature variations of the magnets in automotive applications can be profound. In this paper, the state-of-the-art torque compensation control methods of IPM machines in the literature are reviewed. The methods for torque error estimation due to temperature variation are classified. In addition, the methods for adjusting the operating points of IPM machines to maintain torque production accuracy and high-efficiency operation are also overviewed. The advantages and disadvantages of each algorithm are described and compared in detail. This paper facilitates the development of high performance and robust IPM machine drive systems for the automotive industry.
对于汽车应用,准确的扭矩产生能力和高效率的牵引电机是非常重要的。然而,广泛使用的内嵌式永磁(IPM)电机的性能受到温度变化的影响,并且在汽车应用中磁体的温度变化可能是深刻的。本文综述了文献中最新的IPM电机转矩补偿控制方法。对温度变化引起的扭矩误差估计方法进行了分类。此外,还概述了调整IPM机床工作点以保持扭矩生产精度和高效率运行的方法。对每种算法的优缺点进行了详细的描述和比较。本文促进了高性能和强大的IPM机器驱动系统的发展,为汽车工业。
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引用次数: 12
Near Zero-Ripple Switched Reluctance drives 近零纹波开关磁阻驱动
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520310
P. Shamsi
This paper introduces a Zero First-order (or Fundamental-harmonic) Ripple (ZFR) drive topology for Switched Reluctance Machines (SRM). The proposed drive topology utilizes ripple canceling techniques to eliminate first order ripples on SRM phase currents. This paper will first introduce the proposed ZFR drive topology. Then a Least-Quadratic Regulator (LQR) controller is proposed to utilize the ZFR topology in an optimal fashion. Experimental results are provided to demonstrate the effectiveness of the proposed drive technique.
介绍了开关磁阻电机(SRM)的零一阶(或基谐波)纹波(ZFR)驱动拓扑。所提出的驱动拓扑利用纹波消除技术来消除SRM相电流上的一阶纹波。本文将首先介绍所提出的ZFR驱动拓扑。然后提出了一种最小二次调节器(LQR)控制器,以最优方式利用ZFR拓扑。实验结果证明了该驱动技术的有效性。
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引用次数: 2
A nonlinear control for switched-capacitor converter based on one-cycle control technique 基于单周期控制技术的开关电容变换器非线性控制
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520227
Lei Yang, Xiaobin Zhang, Bin Wu, K. Smedley, G. Li
The nonlinear one-cycle control(OCC) method is adapted to switched-capacitor converter in this paper. To illustrate, the circuit model of dual-phase unity gain switched-capacitor converter is explored, which is organically combined with the OCC control technique. Consequently, a new control loop is formulated and implemented with a simple analog circuit. The model derivation and control loop analysis are all investigated. Experiments results demonstrate that, in wide operation range, the rejection to external disturbance can be completed through one switching cycle. The OCC control can be used for general step-up and step-down dual-phase switched-capacitor converters.
本文将非线性单周期控制(OCC)方法应用于开关电容变换器。为此,探讨了双相单位增益开关电容变换器的电路模型,并将其与OCC控制技术有机结合。因此,一个新的控制回路被制定和实现与一个简单的模拟电路。研究了模型推导和控制回路分析。实验结果表明,在较宽的工作范围内,通过一个开关周期即可完成对外部干扰的抑制。OCC控制可用于一般升压和降压双相开关电容变换器。
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引用次数: 1
Current controller design for high switching frequency converters 高开关变频器电流控制器设计
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520279
R. Gavagsaz-Ghoachani, M. Phattanasak, M. Zandi, Jean-Philippe Martin, B. Nahid-Mobarakeh, S. Pierfederici
Power electronics engineers typically address nonlinear behavior in switching power converters. It is often desirable to determine when the system operates periodically. The objective of this paper is to study how to set the parameters of the current controller for optimal dynamic behavior while ensuring a fixed frequency operation. The authors investigate a proposed continuous-time averaging model for a PWM current controller based on a modulated hysteresis controller. Stability analysis of the controlled system is performed using the eigenvalues of the system. Simulation and experimental results are presented to validate the proposed approach.
电力电子工程师通常处理开关电源变换器的非线性行为。通常需要确定系统何时周期性地运行。本文的目的是研究如何在保证固定频率运行的情况下,设置电流控制器的参数以获得最佳动态行为。作者研究了一种基于调制迟滞控制器的PWM电流控制器连续时间平均模型。利用系统的特征值对被控系统进行稳定性分析。仿真和实验结果验证了该方法的有效性。
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引用次数: 2
Mobile phone mid-range wireless charger development via coupled magnetic resonance 通过耦合磁共振开发手机中档无线充电器
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520217
Ismail Yasar, Lei Shi, K. Bai, Xi Rong, Yang Liu, Xuntuo Wang
In this paper, wireless power transfer for mobile phones via coupled magnetic resonance with multiple transmitters (Txs) and / or receivers (Rxs) are investigated and tested. The system is able to charge cellphones with more than 3 W in a distance between 5 and 15 cm and also in different angles. The resonant frequency is 6MHz. For lower charging powers the distance between the Tx and Rx can go up to 20 cm. Additionally, the three-dimensional movement of the Rx and its effect to the charging power is tested, as self-rotation and rotation around the Tx coil. This achievement is significant to improve user experience of wireless charging for portable electronic devices.
本文研究和测试了通过与多个发射器(Txs)和/或接收器(Rxs)耦合磁共振的移动电话无线电力传输。该系统能够在5到15厘米的距离和不同的角度为3w以上的手机充电。谐振频率为6MHz。对于较低的充电功率,Tx和Rx之间的距离可以达到20厘米。此外,测试了Rx的三维运动及其对充电功率的影响,如自旋和绕Tx线圈旋转。这一成果对于改善便携式电子设备无线充电的用户体验具有重要意义。
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引用次数: 7
A novel wireless converter topology for dynamic EV charging 一种用于电动汽车动态充电的新型无线转换器拓扑
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520264
S. Ruddell, U. Madawala, D. Thrimawithana, M. Neuburger
This paper presents a novel topology, based on inductive power transfer (IPT) that is suitable for dynamic charging of electric vehicles (EVs). The proposed topology is novel in that a super capacitor (SC) is used in conjunction with the EV IPT secondary converter to combine power transfer and energy storage in a single converter. In comparison to existing dynamic EV IPT systems, this topology requires no additional switching components, while offering the benefit of a SC energy buffer. Operational modes of the system are described in terms of the switching waveforms required to transfer energy between the grid powered primary IPT pad and the EV. A mathematical model that describes the power transfer within the system is presented along with a simple control strategy to regulate power flow. Simulated and experimental performance of a small scale prototype system in a typical dynamic charging scenario is presented to confirm the validity of the mathematical model and the control strategy.
提出了一种适用于电动汽车动态充电的基于感应功率传输的新型拓扑结构。所提出的拓扑结构是新颖的,因为超级电容器(SC)与EV IPT二次变换器结合使用,在单个变换器中结合了功率传输和能量存储。与现有的动态EV IPT系统相比,这种拓扑结构不需要额外的开关元件,同时提供SC能量缓冲的好处。系统的工作模式描述为在电网供电的主IPT pad和EV之间传输能量所需的开关波形。提出了一个描述系统内功率传输的数学模型,并提出了一种简单的控制策略来调节功率流。通过一个小型原型系统在典型动态充电场景下的仿真和实验,验证了该数学模型和控制策略的有效性。
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引用次数: 12
Performance comparison and device analysis Between Si IGBT and SiC MOSFET Si IGBT与SiC MOSFET的性能比较及器件分析
Pub Date : 2016-06-27 DOI: 10.1109/ITEC.2016.7520242
A. Albanna, Andrew Malburg, M. Anwar, Atul Guta, Nidhi Tiwari
The paper presents the characteristics of the latest commercial 1200V 300A SiC MOSFET module and compares it's performance with Si IGBT with the same rating using experimental results and the saber software environment. Our SiC MOSFET model in SABER gives accurate results across a wide range of temperatures. The results show that the 1200V SiC MOSFET has faster switching speed and significantly less switching loss compared to the Si IGBT. Moreover, the Si IGBT switching loss will increase significantly for higher operation temperature, while the SiC MOSFET switching loss has little variation over different temperatures. This paper will also investigates the stray inductance effect on the gate, drain, and source side and verifies its performance with Si IGBT. The double pulse test circuit has been implemented in SABER to simulate the dynamic losses and a brief review of the various applications for automotive industry of the SiC MOSFET has been also presented in the paper.
本文介绍了最新商用1200V 300A SiC MOSFET模块的特点,并利用实验结果和saber软件环境将其性能与相同额定值的Si IGBT进行了比较。我们在SABER中的SiC MOSFET模型在广泛的温度范围内提供准确的结果。结果表明,与Si IGBT相比,1200V SiC MOSFET具有更快的开关速度和更小的开关损耗。此外,Si IGBT的开关损耗在较高的工作温度下会显著增加,而SiC MOSFET的开关损耗在不同温度下变化不大。本文还将研究杂散电感对栅极、漏极和源侧的影响,并用Si IGBT验证其性能。在SABER中实现了双脉冲测试电路来模拟动态损耗,并简要介绍了SiC MOSFET在汽车工业中的各种应用。
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引用次数: 18
期刊
2016 IEEE Transportation Electrification Conference and Expo (ITEC)
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