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2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)最新文献

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Blockchain and smart metering towards sustainable prosumers 区块链和智能计量以实现可持续消费
G. Lazaroiu, M. Roscia
The trend in the energy market has led in the last few years the increase in demand (eg the spread of electric vehicles) and an increase in volatile renewable energy sources (PV, Wind, etc.), a reduction in the use of fossil fuels, that destabilize the grid leading to black outs. The electricity grid is developing in a distributed network, so the connected energy markets are moving towards a new decentralized structure, where renewable sources and storage facilities (EVs), will have a significant penetration and adoption by energy customers, with the intent to provide sustainable solutions.[1] Balancing the demand and supply of electricity, in a system dominated by random elements, such as solar and wind production that depend on weather conditions, combined with the highly variable demand from domestic users, must lead to a new model of consumers and producers at the same time that is the so-called Prosumer and will be a challenge of great importance. With this paper we want to verify how the smart communities, made up of Prosumers, within smart cities, are the key to the new electricity distribution, based on ICT, IoT and smart metering. A significant contribution will be provided by the Blockchain to make the energy networks and related economic transactions secure and reliable.
在过去的几年里,能源市场的趋势导致了需求的增加(例如电动汽车的普及)和不稳定的可再生能源(光伏、风能等)的增加,化石燃料的使用减少,导致电网不稳定,导致停电。电网在分布式网络中发展,因此互联能源市场正朝着新的分散式结构发展,在这种结构中,可再生能源和存储设施(ev)将被能源客户显著渗透和采用,旨在提供可持续的解决方案。[1]在一个由随机因素(如依赖天气条件的太阳能和风能生产)主导的系统中,平衡电力的需求和供应,再加上国内用户高度可变的需求,必须同时产生一种新的消费者和生产者模式,即所谓的Prosumer,这将是一个非常重要的挑战。通过本文,我们希望验证智能城市中由产消者组成的智能社区如何成为基于ICT,物联网和智能计量的新电力分配的关键。区块链将为能源网络和相关经济交易的安全可靠做出重大贡献。
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引用次数: 16
Bearing Wear Condition Identification on Converter-fed Motors 变频电机轴承磨损状态识别
H. Tischmacher
This paper deals with the bearing wear and the early detection of possible damages in bearings of variable-speed, converter-fed electrical motors. A description covering the issue of bearing currents in converter-fed drives is presented. However, this work focuses on the practical experiences of bearing wear influence on electric motors performance. Explicit information concerning a bearing damage due to corrugation caused by electrical currents through the bearing can only be extracted by a combined analysis of the electrical and the mechanical behavior of the bearing. For this purpose systematic measurements have to be exploited, where both the electrical measurement of bearing currents and the mechanical measurement of the bearing vibration status have to be combined for determining the bearing condition state. A comparison between different vibration measurement methods provides a systematic approach enabling detection and classification of possible changes in bearings of the drive system i.e. motor and the attached load machine, in a very early state. Finally, a description of the possibilities to determine the electrical bearing load in a drive system and the correlation of its possible limit values to the mechanical bearing condition is highlighted.
本文研究了变速变频电动机轴承的磨损及可能损坏的早期检测。介绍了变频器驱动中轴承电流的问题。然而,本工作侧重于轴承磨损对电动机性能影响的实践经验。关于由电流通过轴承引起的波纹引起的轴承损坏的明确信息只能通过对轴承的电气和机械行为的综合分析来提取。为此,必须采用系统的测量方法,其中必须结合轴承电流的电气测量和轴承振动状态的机械测量来确定轴承状态状态。不同振动测量方法之间的比较提供了一种系统的方法,可以在非常早期的状态下检测和分类驱动系统(即电机和附加负载机器)轴承的可能变化。最后,描述了在驱动系统中确定电气轴承载荷的可能性,以及其可能的极限值与机械轴承条件的相关性。
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引用次数: 7
Versatile Power Electronic Building Block for Residential DC Microgrids 用于住宅直流微电网的多功能电力电子构件
D. Vinnikov, A. Chub, R. Kosenko, E. Liivik
This paper discusses a novel approach to the power electronic building block (PEBB) for residential power generation systems. The PEBB based on the synchronous resonant quasi-Z-source DC-DC converter (SRqZSC) features galvanic isolation, wide input voltage and load regulation range, and high power conversion efficiency. Thanks to the power circuit versatility, the PEBB can be used as a power electronic interface not only for the power sources with unidirectional power flow (e.g. the photovoltaic panels and fuel cells) but also in the bidirectional applications, such as modular battery storage systems. The paper gives an insight into the SRqZSC technology, explains its general design and control principles and applicability issues in the residential power generation systems. Moreover, the experimental results are discussed in the context of different applications by means of the 300 W prototype of the SRqZSC based PEBB for the residential DC microgrids.
本文讨论了一种用于住宅发电系统的电力电子构件(PEBB)的新方法。基于同步谐振准z源DC-DC变换器(SRqZSC)的PEBB具有电流隔离、宽输入电压和负载调节范围、高功率转换效率等特点。由于电源电路的多功能性,PEBB不仅可以用作单向功率流电源(例如光伏板和燃料电池)的电力电子接口,还可以用于双向应用,例如模块化电池存储系统。本文介绍了SRqZSC技术,阐述了SRqZSC技术的总体设计和控制原理以及在住宅发电系统中的适用性问题。此外,本文还利用基于SRqZSC的300 W PEBB原型机在住宅直流微电网中的不同应用,对实验结果进行了讨论。
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引用次数: 2
Experimental Implementation of The Stator-Side Control of a Grid-Connected Rotor-Tied DFIG-Based WECS 并网转子系dfig型WECS定子侧控制的实验实现
M. W. K. Mbukani, N. Gule
In the rotor-tied configuration of the doubly-fed induction generator (DFIG), the rotor is connected to the grid whilst the stator of the DFIG is connected to the grid through a back-to-back converter. In this paper, the modelling and control algorithm of the stator-side converter of a custom-designed S.S-kW rotor-tied DFIG are presented. Furthermore, the performance of the proposed control algorithm is experimentally evaluated during synchronisation and in sub-synchronous operating conditions.
在双馈感应发电机(DFIG)的转子绑定配置中,转子连接到电网,而DFIG的定子通过背靠背转换器连接到电网。本文介绍了自行设计的s -s - kw系转子DFIG定子侧变换器的建模和控制算法。此外,在同步和次同步操作条件下,实验评估了所提出的控制算法的性能。
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引用次数: 5
Maximizing The Revenue of Energy Storage Systems in Market Areas Considering Nonlinear Storage Efficiencies 考虑非线性存储效率的市场区域储能系统收益最大化
T. Nguyen, R. Byrne, B. Chalamala, I. Gyuk
Techno-economic analyses of energy storage currently use constant-efficiency energy flow models. In practice, charge/discharge efficiency of energy storage varies as a function of state-of-charge, temperature, charge/discharge power. Therefore, using the constant-efficiency energy flow models will cause suboptimal results. This work focuses on incorporating nonlinear energy flow models based on nonlinear efficiency models in the revenue maximization problem of energy storage. Dynamic programming is used to solve the optimization problem. A case studies is conducted to maximize the revenue of a Vanadium Redox Flow Battery (VRFB) system in PJM's energy and frequency regulation market.
储能的技术经济分析目前使用的是恒效率能量流模型。在实际应用中,储能系统的充放电效率随充电状态、温度、充放电功率的变化而变化。因此,使用等效率的能量流模型将导致次优结果。本文主要研究基于非线性效率模型的非线性能量流模型在储能收益最大化问题中的应用。采用动态规划方法求解优化问题。为了使钒氧化还原液流电池(VRFB)系统在PJM的能量和频率调节市场上的收益最大化,进行了一个案例研究。
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引用次数: 6
Real-time Model in the Loop analysis of PMSM for electric power steering system based on FPGA implementation 基于FPGA实现的电动助力转向系统永磁同步电机环内实时模型分析
P. Florin, R. Mircea, Nemes Raul, C. Martis, Pop Adrian-Cornel
The paper presents a dual analysis of a permanent magnet synchronous machine (PMSM) designed for an electric power steering system (EPS) used in the automotive industry. Preliminary, the existing PMSM is studied using finite element analysis (FEA) in order to check flux linkage, flux density, cogging and electromagnetic torque values for different speed and current values. Structural design dimensions of the machine are given in detail in the paper as well as FEA based identified parameters used in the real-time analysis. The latter is accomplished using two field programmable gate array (FPGA) processors, each mounted on one Rseries platform, hardware tools provided by National Instruments company. One is running the analytic model of the PMSM with the parameters extracted from FEA and the second one is running the field oriented control (FOC) of the machine. The communication between the two platforms is accomplished using analog and digital IOs to mimic the behavior of the physical test bench with a real machine. Hence, the 3-phase currents are acquired using analog inputs, the position is acquired using digital lines and the PWM is sent via other 3 digital channels. Separation of the machine and converter model on one FPGA and the FOC on the second one, minimizes the gap between testing the real machine and the realtime model in the loop (RTMiL) engaged in this study. Comparative analysis of the FEA and RTMiL results will prove the accuracy of the FPGA based modelling of the PMSM and its control
本文对用于汽车电动助力转向系统(EPS)的永磁同步电机(PMSM)进行了双重分析。首先,对现有永磁同步电机进行了有限元分析,对不同转速和电流值下的磁链、磁通密度、齿槽和电磁转矩进行了校核。文中详细给出了机床的结构设计尺寸,并基于辨识参数进行了有限元分析,用于实时分析。后者使用两个现场可编程门阵列(FPGA)处理器完成,每个处理器安装在一个r系列平台上,硬件工具由国家仪器公司提供。一是利用有限元分析提取的参数对永磁同步电机进行分析模型的运行,二是对电机进行场定向控制。两个平台之间的通信使用模拟和数字IOs来模拟真实机器的物理测试台架的行为。因此,使用模拟输入获取3相电流,使用数字线获取位置,并通过其他3个数字通道发送PWM。在一个FPGA上分离机器和转换器模型,在另一个FPGA上分离FOC,最大限度地减少了本研究中测试真实机器和实时环路模型(RTMiL)之间的差距。FEA和RTMiL结果的对比分析将证明基于FPGA的PMSM建模及其控制的准确性
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引用次数: 3
Multi-Criteria Analysis for Ultimate Selection of the Vehicle Traction Electric Motor: Methodology and Application 车辆牵引电动机最终选择的多准则分析:方法与应用
I. Bolvashenkov, J. Kammermann, H. Herzog
In the previous work of the authors the methodology of preliminary (rough) comparative analysis of electric traction machines for the various types of electric vehicles has been considered. Due to certain shortcomings of this technique, the present paper proposes a new methodology for an ultimate (refined) selection of traction electric motors with an example of its practical application for decision making on the selection of the optimum components for a hybrid electric propulsion system for an icebreaker's type of the ship.
在作者以前的工作中,已经考虑了对各种类型的电动汽车的电动牵引机进行初步(粗略)比较分析的方法。由于该技术的某些缺点,本文提出了一种牵引电动机最终(精细化)选择的新方法,并举例说明了该方法在某型破冰船混合动力推进系统最佳部件选择决策中的实际应用。
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引用次数: 2
High-Speed Electric Machine with a Speed of 1.2 million rpm 高速电机,转速120万转/分
F. Ismagilov, V. Vavilov, D. Gusakov
This paper presents the study of microsize high-speed electric machine with a speed of 1.2 million rpm with a power of 100–150 W. The topology of machine is a synchronous electric machine with permanent magnets. The design of the rotor was chosen and calculation of the mechanical strength of the rotor by the finite element method was made. The most suitable type of bearing supports was determined. Dependence of aerodynamic losses on frequency and on radius of the rotor was revealed. Materials of the stator magnetic core and the stator conductors were selected. Electric machine losses were calculated. To evaluate the efficiency of the developed computer models and the calculation algorithm, the experimental verification of the machine (the motor mode) with a rotation speed of 500,000 rpm and a power of 100 W was carried out. The discrepancy between the developed models and experimental data does not exceed 5-7%.
本文研究了转速为120万转/分,功率为100-150瓦的微型高速电机。机器的拓扑结构是带有永磁体的同步电机。选择了转子的设计方案,并用有限元法对转子的机械强度进行了计算。确定了最合适的轴承支承类型。揭示了气动损失与频率和转子半径的关系。对定子磁芯和定子导体的材料进行了选择。计算了电机损耗。为了评估所建立的计算机模型和计算算法的效率,对转速为50000rpm,功率为100w的机器(电机模式)进行了实验验证。所建立的模型与实验数据的差异不超过5-7%。
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引用次数: 5
AC Drives with Buck-Boost Voltage Switched Frequency Converters without DC Storage 交流驱动器与降压升压开关变频器无直流存储
Z. Fedyczak, P. Szcześniak, M. Klytta
In general, this paper deals with the power electronics AC/AC converters without DC storage as supply sources for AC drives. In the paper are presented the solutions and basic properties of these converters, which allow the change of the output voltage frequency with possibility of obtaining the voltage gain greater than one. The presented description includes especially matrix reactance frequency converters (MRFC), current source matrix converters (CSMC) and Z-source matrix converters (ZSMC).
一般来说,本文讨论的是无直流存储的电力电子AC/AC变换器作为交流驱动的电源。本文介绍了这些变换器的解决方案和基本特性,这些变换器允许改变输出电压频率,并有可能获得大于1的电压增益。具体包括矩阵电抗变换器(MRFC)、电流源矩阵变换器(CSMC)和z源矩阵变换器(ZSMC)。
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引用次数: 0
Timing Control of a Modular Multilevel Converter Using a Bootstrapping Circuit as Submodule Switch Driver 用自举电路作为子模块开关驱动的模块化多电平变换器时序控制
Stefan Palte, David Gasch, W. Oberschelp, G. Schroder
Subject of this paper is the implementation of a bootstrap driver for the GaN-based transistors inside the submodules of a modular multilevel converter (M2C). To compensate the disadvantage of a limited on-time of the high-side transistor in the half-bridge configuration, a timing control function is added to the sorting algorithm of each arm of the converter. This function switches two submodules if a maximum on-time of one submodule is reached. The proposed control was simulated using a discrete model.
本文的主题是模块化多电平变换器(M2C)子模块内基于gan的晶体管的引导驱动程序的实现。为了弥补半桥结构中高侧晶体管导通时间有限的缺点,在变换器各臂的排序算法中增加了时序控制功能。如果达到一个子模块的最大接通时间,该函数将切换两个子模块。采用离散模型对所提出的控制进行了仿真。
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引用次数: 0
期刊
2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)
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