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Two-phase interleaved DC-DC converter with 3.3 kV SiC MOSFET modules 具有3.3 kV SiC MOSFET模块的两相交错DC-DC变换器
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114898
Radek Sobieski, R. Miśkiewicz, J. Rąbkowski, Rafał Kopacz
This paper describes highly-efficient two-phase interleaved DC-DC converter designed and built with 3.3 kV SiC MOSFET modules. The converter is designed to connect 1.5 kV battery storage and the 800 V DC link but can operate in other similar configurations. The system is validated experimentally, and tested up to 260 kW rated power but also low power operation is presented. It is shown that the use of state-of-the-art SiC-based power modules allows to reach high power ratings, along with notable frequencies (20 to 25 kHz) and satisfying efficiencies, reaching 98.7% at nominal power. Moreover, interleaved operation leads to high quality of input and output waveforms despite relatively small passive components, Thus, the system can be competitively employed against common IGBT solutions.
本文介绍了用3.3 kV SiC MOSFET模块设计和制造的高效两相交错DC-DC变换器。该转换器设计用于连接1.5 kV电池存储和800 V直流链路,但可以在其他类似配置中运行。实验验证了该系统的有效性,并在260 kW的额定功率下进行了测试,同时也实现了低功耗运行。结果表明,使用最先进的基于sic的功率模块可以达到高额定功率,以及显著的频率(20至25 kHz)和令人满意的效率,在标称功率下达到98.7%。此外,尽管相对较小的无源元件,交错操作导致高质量的输入和输出波形,因此,该系统可以与常见的IGBT解决方案竞争。
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引用次数: 0
Fuel Cell/Battery Hybrid Electric System for UAV 无人机燃料电池/电池混合动力系统
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114892
J. Corcau, L. Dinca
Hybrid electric systems composed of fuel cells and batteries have become solutions for UAVs (Unmanned aerial vehicles) with electric propulsion due to the fact that they combine the high energy density of fuel cells with the high-power density of batteries. As a rule, a dc-to-dc converter is placed between the fuel cell and the battery, most often a boost converter, which has the role of balancing the power flow between the two sources and increasing the peak power at the output of the hybrid electrical system. In this paper, such a hybrid system on board of an UAV is modeled and analyzed. The system presents a power management based on fuzzy logic, which is responsible for the distribution of the power required by the UAV between the two sources (fuel cell and batteries). The results of the numerical simulation show the ability of the hybrid system to allow the UAV an electric propulsion. The work focuses on the description of the configuration, modeling, and control of the hybrid electric system for a certain electric load requirement.
燃料电池和电池组成的混合动力系统结合了燃料电池的高能量密度和电池的高功率密度,成为无人机(uav)电力推进的解决方案。通常,在燃料电池和电池之间放置dc- dc转换器,最常见的是升压转换器,它具有平衡两个源之间的功率流并增加混合电力系统输出的峰值功率的作用。本文对无人机机载混合动力系统进行了建模和分析。该系统提出了一种基于模糊逻辑的电源管理,负责无人机所需的两个电源(燃料电池和电池)之间的功率分配。数值仿真结果表明,该混合动力系统能够实现无人机的电力推进。本文的工作重点是针对一定的电力负荷要求,对混合动力系统的组态、建模和控制进行描述。
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引用次数: 1
Integrated Energy Systems for Green Ports; A Cost Model and Case Study 绿色港口的综合能源系统研究成本模型和案例研究
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114871
Ritvana Rrukaj, M. Zadeh
In this paper, an integrated port energy system is described and modeled based on cost modeling and including practical constraints. The model uses simulated power data to operate an energy management system (EMS) with shore power and a port energy storage system (ESS) for a green port. Based on the calculated electricity costs, the optimal power output of the energy management system is established such as the rating of the power sources and sizing of the ESS. In the next step, the model is used for system optimization of operating expenses and to improve the availability of the onshore supply system by adjusting the energy sources based on the renewable energy sources (RES) available and the state of charge of the on-shore battery. Finally, the optimal power output profiles of an EMS change based on the availability of RES generation during a sunny and cloudy day. Further, this integrated energy system can be adapted for future green ports supplying multiple vessels with various energy sources such as Liquefied Natural Gas (LNG), ammonia, and hydrogen.
本文以成本模型为基础,考虑实际约束条件,对综合港口能源系统进行了描述和建模。该模型利用模拟的电力数据运行一个具有岸电的能源管理系统(EMS)和一个绿色港口的港口储能系统(ESS)。根据计算出的电力成本,确定电源的额定值、ESS的规模等能源管理系统的最优输出功率。下一步,将该模型用于运行费用的系统优化,并根据可用的可再生能源(RES)和岸上电池的充电状态,通过调整能源来提高陆上供电系统的可用性。最后,根据晴天和阴天可再生能源发电的可用性,EMS的最佳功率输出曲线会发生变化。此外,这种综合能源系统可以适用于未来的绿色港口,为多艘船舶提供各种能源,如液化天然气(LNG)、氨和氢。
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引用次数: 1
Optimal Shaping for Electrically Excited Synchronous Motor 电激同步电机的优化整形
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114885
L. Cinti, N. Bianchi
This paper deal with the design of electrically excited synchronous motors (EESMs) for use in industrial and automotive applications. EESMs require careful attention to the shape of the stator and rotor in order to maximize their efficiency and performance. Two approaches are commonly used to optimize the shape of EESMs: Finite Element (FE) analysis and analytical modeling. While FE analysis offers high accuracy, it is computationally expensive. Analytical modeling, on the other hand, is faster but less detailed in performance evaluation. This paper presents a fast and effective method for designing EESMs using an analytical magnetic network. The network is designed to find the optimal shape of an EESM based on a variety of sinusoidal component shapes. The paper provides a validation of the analytical model and reports on a parametric computation to obtain a Pareto front for better solutions. Design wellness is evaluated using the low order harmonic and maximum values of no-load flux density.
本文讨论了用于工业和汽车应用的电激同步电动机的设计。eesm需要仔细注意定子和转子的形状,以最大限度地提高其效率和性能。两种常用的方法来优化形状的eesm:有限元分析和解析建模。虽然有限元分析提供了很高的准确性,但它的计算成本很高。另一方面,分析建模更快,但在性能评估中不太详细。本文提出了一种利用分析磁网络快速有效地设计电磁机械的方法。该网络旨在根据各种正弦分量的形状找到EESM的最佳形状。本文对解析模型进行了验证,并给出了一个参数化计算,以获得较好的Pareto前沿解。利用空载磁通密度的低次谐波和最大值来评估设计的健康性。
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引用次数: 0
Battery trains operation from the infrastructure manager perspective 从基础设施经理的角度来看,电池列车的运行
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114819
Benoît Sonier, T. Bausseron, B. Vulturescu, Ignacio Riezu, Dimitri Mantel
The French railway network is approximately 60% electrified, while electric trains represent almost 90% of traffic. To reduce the carbon footprint of railway transport, France wishes to continue electrifying the diesel lines most frequently used. Unfortunately, in the current economic context, the complete electrification of an entire line is not always profitable because of the infrastructure. The deployment of battery trains on certain lines would reduce the use of diesel trains while limiting investment in infrastructure. This article details the point of view of the French infrastructure manager about the installations needed to operate battery trains through the presentation of a test case.
法国铁路网的电气化程度约为60%,而电动列车几乎占交通总量的90%。为了减少铁路运输的碳足迹,法国希望继续对最常用的柴油线路进行电气化。不幸的是,在目前的经济背景下,由于基础设施的原因,整条线路的完全电气化并不总是有利可图的。在某些线路上部署电池列车将减少柴油列车的使用,同时限制对基础设施的投资。本文通过演示一个测试案例,详细介绍了法国基础设施经理关于运行电池列车所需的安装的观点。
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引用次数: 0
Upgrading a DC Source to a PHIL Amplifier 将直流电源升级为PHIL放大器
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114878
Lucas Rotava, S. Deda, Oliver König, Gernot Pammer
The simulation models of power electronic converters and power systems may be reused for rapid prototyping, prototype testing and type approval. Such models already run on real-time simulators (RTS) of various suppliers, on FPGA-based simulation platforms. The target is to solve many more applications with the same hardware (HW) in a faster way by decoupling the application from the power electronics. Therefore, it is a goal to adapt existing DC sources by adding a high-speed fiber interface to decouple the application from the power electronics. One common interface specification enables the use of a wide range of products as power amplifiers (battery/cell emulators & testers, machine emulators, dyno drives, universal inverters, grid emulators). An interchangeable fiber optic interface between different RTS platforms will be used to provide low latency and synchronization concepts.
电力电子变流器和电力系统的仿真模型可用于快速成型、样机测试和型式认证。这些模型已经在各种供应商的实时模拟器(RTS)上运行,在基于fpga的仿真平台上运行。目标是通过将应用与电力电子器件解耦,以更快的方式解决具有相同硬件(HW)的更多应用。因此,目标是通过增加高速光纤接口来适应现有的直流电源,从而使应用与电力电子器件分离。一个通用接口规范允许使用广泛的产品作为功率放大器(电池/电池模拟器和测试器,机器模拟器,动态驱动器,通用逆变器,电网模拟器)。不同RTS平台之间的可互换光纤接口将用于提供低延迟和同步概念。
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引用次数: 0
GA-Based Features Selection for Electro-chemical Impedance Spectroscopy on Lithium Iron Phosphate Batteries 基于ga的磷酸铁锂电池电化学阻抗谱特征选择
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114858
C. Bourelly, M. Vitelli, F. Milano, M. Molinara, F. Fontanella, L. Ferrigno
Online and real-time estimation of the State of Charge (SoC) of batteries is an issue that affects several applications where energy storage systems are used. Among the most effective techniques for estimating the SoC, we find those based on Electrochemical Impedance Spectroscopy (EIS). One of the problems that afflict the EIS is that a single frequency sweep can last too long compared to the need to carry out the evaluation of the SoC online and real-time. This work aims to minimize the time required to perform EIS through a feature selection technique based on Genetic Algorithms. Specifically, an experimental campaign was conducted on 5 different Lithium Iron Phosphate batteries to create a dataset, and a feature selection evaluation strategy was implemented. The obtained results confirmed that it is possible to reduce the time required to perform EIS while maintaining good performance in SoC estimation.
在线和实时评估电池的充电状态(SoC)是一个影响储能系统应用的问题。其中最有效的估算方法是电化学阻抗谱(EIS)。困扰EIS的一个问题是,与在线和实时评估SoC的需求相比,单次频率扫描可能持续太长时间。本工作旨在通过基于遗传算法的特征选择技术,最大限度地减少执行EIS所需的时间。具体而言,对5种不同的磷酸铁锂电池进行了实验,建立了数据集,并实施了特征选择评估策略。所获得的结果证实,在SoC估计中保持良好性能的同时,减少执行EIS所需的时间是可能的。
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引用次数: 2
A Hardware-Based Bidirectional Power Flow Decoupling Approach for Multi-Active-Bridge Converters 基于硬件的多有源桥式变换器双向潮流解耦方法
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114906
Peyman Koohi, A. Watson, T. Soeiro, J. Clare, M. Rivera, P. Venugopal, P. Wheeler
Cross-coupling effect and complicated control are the main drawbacks in multi-port structures such as multi-active bridge (MAB) converters. This paper discusses existing solutions for decoupling power flow in the MAB and proposes a new strategy. The suggested solution requires an external inductor and two more switches per bidirectional port, and one inductor per output unidirectional port. The theoretical analysis shows that each output port can be controlled independently in all scenarios. The proposed strategy does not require a decoupling matrix, and each port behaves like a separated dual-active bridge converter. In the end, the functionality and performance of the proposal are validated in PLECS simulator, demonstrating an appropriate selection of the inductances can decouple the power flow effectively, besides it reduces the circulating power and enhances the possibility of fault tolerance.
交叉耦合效应和复杂的控制是多有源桥转换器等多端口结构的主要缺点。本文讨论了MAB中现有的潮流解耦方法,并提出了一种新的解耦策略。建议的解决方案需要一个外部电感和每个双向端口两个以上的开关,每个输出单向端口一个电感。理论分析表明,在所有场景下,每个输出端口都可以独立控制。该策略不需要解耦矩阵,并且每个端口都像一个分离的双有源桥式变换器。最后,在PLECS仿真中对该方案的功能和性能进行了验证,结果表明,适当选择电感可以有效地解耦潮流,减少循环功率,提高容错的可能性。
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引用次数: 1
Enhanced online identification of battery models exploiting data richness 利用数据丰富度增强电池模型的在线识别
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114851
Chengxi Cai, D. Auger, S. Perinpanayagam
The online model parameter identification is essential to ensure the accuracy and dependability of other battery management system (BMS) tasks in the case of battery degradation and operational environment change. Traditional recursive least squares (RLS) algorithms have always been dependent on persistently exciting data, which limits their ability to operate online when this cannot be guaranteed. This paper proposed a modified RLS method that selects the data richest point for parameter identification. In this model, Fisher information matrix and Cramer-Rao bound are utilised to evaluate the data richness. The final algorithms solve the operational limitations of RLS algorithms, enabling a reliable online model parameter identification under real-world dynamic conditions. The identified model parameters from the single cycle dynamic stress test (DST) of an NCM battery are verified by terminal voltage and state of charge (SoC) estimation with the Root Mean Square Error (RMSE) 0.0332 and 0.0131, respectively.
在电池退化和运行环境变化的情况下,在线模型参数辨识是保证电池管理系统(BMS)其他任务准确性和可靠性的关键。传统的递归最小二乘(RLS)算法一直依赖于持续令人兴奋的数据,这限制了它们在无法保证在线运行时的能力。本文提出了一种改进的RLS方法,选取数据最丰富点进行参数辨识。在该模型中,利用Fisher信息矩阵和Cramer-Rao界来评价数据的丰富度。最终的算法解决了RLS算法的操作局限性,实现了在真实动态条件下可靠的在线模型参数识别。通过对NCM电池单循环动态应力测试(DST)模型参数的验证,得到了终端电压和荷电状态(SoC)估计,RMSE分别为0.0332和0.0131。
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引用次数: 1
Opportunity charging for public transportation: opportunities and challenges 公共交通收费:机遇与挑战
Q3 Engineering
AUS
Pub Date : 2023-03-29 DOI: 10.1109/ESARS-ITEC57127.2023.10114910
N. Campagna, V. Castiglia, F. Pellitteri, R. Miceli, M. Caruso
In this paper, a focus on the opportunity charging for public transportation is made. In particular, the possibility of using a wireless charging system for the urban bus fleets is analyzed. A practical case study is presented. As a result, it is demonstrated how the use of the presented recharging concept contributes significantly to reducing the size, thus the cost of the on-board transport vehicles storage and distributing the power demand over the time, avoiding main grid overloads and optimizing the use of renewable energy sources.
本文重点研究了公共交通的机会收费问题。特别分析了城市公交车队使用无线充电系统的可能性。给出了一个实际的案例研究。因此,它展示了使用所提出的充电概念如何显著有助于减小尺寸,从而降低车载运输车辆存储和分配电力需求的成本,避免主电网过载并优化可再生能源的使用。
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引用次数: 1
期刊
AUS
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