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Sunday-FL – Developing Open Source Platform for Federated Learning 周日fl -开发联邦学习的开源平台
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619338
P. Niedziela, Anastasiya Danilenka, Dominik Kolasa, M. Ganzha, M. Paprzycki, Kumar Nalinaksh
Since its inception, in approximately 2017, federated learning became an area of intensive research. Obviously, such research requires tools that can be used for experimentation. Here, the biggest industrial players proposed their own platforms, but these platforms are anchored in tools that they “promote”. Moreover, they are mainly "all-in-one" solutions, aimed at facilitating the federate learning process, rather than supporting research “about it”. Taking this into account, we have decided to start developing an open source modular flexible federated learning platform. The aim of this contribution is to briefly summarize key aspects of federated learning and, in this context, to introduce our platform.
自大约2017年成立以来,联邦学习成为了一个深入研究的领域。显然,这样的研究需要可以用于实验的工具。在这里,最大的行业参与者提出了他们自己的平台,但这些平台是锚定在他们“推广”的工具中。此外,它们主要是“一体化”解决方案,旨在促进联邦学习过程,而不是支持“关于它”的研究。考虑到这一点,我们决定开始开发一个开源模块化灵活的联邦学习平台。本文的目的是简要总结联邦学习的关键方面,并在此背景下介绍我们的平台。
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引用次数: 1
Minimization of Active Power Loss for Optimum Reactive Power Dispatch using PSO 基于粒子群优化无功调度的有功损耗最小化
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619313
Hardik P. Modha, Vishnu B. Patel
For operational analysis, scheduling and energy management of power system various optimizing tools are used. An optimal power flow is more important as it is capable to deal with various situations and involves the optimization of different objective functions within a set of operational and physical constraints. This paper present a comprehensive study of optimal power flow problem as constrained non-linear, single objective or multi-objective optimization problems. This paper presents particle swarm optimization technique for solution ofa reactive power dispatch problem. The results from this technic is less sensitive to the complexity of the objective function. The proposed method is applied to minimum the real power loss in power system. By examined & tested on IEEE 14 bus test system for evaluate the performance, the results are shows the effectiveness and robustness of the proposed method.
针对电力系统的运行分析、调度和能量管理,采用了各种优化工具。最优潮流更为重要,因为它能够处理各种情况,并涉及在一组操作和物理约束下对不同目标函数的优化。本文将最优潮流问题作为约束非线性、单目标或多目标优化问题进行了全面的研究。提出了求解无功调度问题的粒子群优化技术。该技术的结果对目标函数的复杂性不太敏感。该方法可使电力系统的实际功率损耗最小。通过在ieee14总线测试系统上的测试,验证了该方法的有效性和鲁棒性。
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引用次数: 5
Firefly Algorithm Optimized Load Frequency Controller for Multi-Source Power System 萤火虫算法优化的多源电力系统负荷频率控制器
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619304
K. Ranjitha, P. Sivakumar, R. Elavarasu, M. Monica, A. Rajapandiyan
A novel Load Frequency Controller optimized by Firefly algorithm is proposed for a Distributed Generation (DG) penetrated power system. To meet the increased power, renewable energy such as solar PV systems, wind power based power generation is used. As renewable sources are all fluctuating in nature, maintaining the nominal frequency value in every area becomes a major challenge to the power system engineers. Along with this, the variation of the tie line power is also a major problem. The main objective of the Load Frequency Control (LFC) is to diminish the transient deviancies in the area frequency and the tie-line power and make the steady-state error almost zero. LFC is essential to ensure power quality and reliability. New approaches of LFC are required to meet the need of DG penetrated complex system. Hence, a new approach on the LFC of the normal interrelated power system with some renewable energy-based power generation is done. Firefly algorithm is adapted for the parameter tuning of the Proportional Integral Controller (PI) in LFC. The various test cases are considered by varying load and source. In all the test case considered the dominance of the suggested controller is revealed by relating the result with PI and Fuzzy based PI controller.
提出了一种基于萤火虫算法优化的分布式发电渗透电力系统负荷频率控制器。为了满足不断增加的电力,可再生能源如太阳能光伏系统、风力发电被用于发电。由于可再生能源的性质都是波动的,因此保持每个区域的标称频率值成为电力系统工程师面临的主要挑战。与此同时,联络线功率的变化也是一个主要问题。负荷频率控制(LFC)的主要目标是减小区域频率和联络线功率的暂态偏差,使稳态误差几乎为零。LFC是保证电能质量和可靠性的关键。为满足DG渗透复杂系统的需要,需要新的LFC方法。因此,本文对具有一定可再生能源发电能力的正常电力系统的LFC问题进行了新的研究。采用萤火虫算法对LFC中的比例积分控制器(PI)进行参数整定。通过不同的负载和源来考虑各种测试用例。在所有考虑的测试用例中,通过将结果与PI和基于模糊的PI控制器联系起来,揭示了建议控制器的优势。
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引用次数: 2
A Novel Approach for Security in Cloud Data Storage Using AES-DES-RSA Hybrid Cryptography 一种使用AES-DES-RSA混合加密的云数据存储安全新方法
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619274
Vyom Verma, Pulkit Kumar, Rajshree Verma, S. Priya
In today’s world, everything is running online and a lot of data are transferred over the internet, so data security had become an important issue. Even if one doesn’t send a file, hackers can get into the systems and access private data. There exist numerous encryption techniques using symmetric and asymmetric cryptographic technique. We have built a hybrid cryptographic system using parts of AES, DES and RSA encryption algorithms to take advantage of the benefits of both algorithms and overcome their weaknesses for the security of data stored on the cloud. Using this hybrid cryptosystem, the data stored on the cloud can be accessed or retrieved as per the user’s request without the direct access to the server computer. But the major concern regarding storage of data on cloud is the security, which is here implemented using the proposed hybrid cryptographic system. Finally, the algorithm is compared to existing AES, DES and RSA algorithms.
在当今世界,一切都在网上运行,大量的数据通过互联网传输,因此数据安全成为一个重要的问题。即使没有发送文件,黑客也可以进入系统并访问私人数据。目前存在许多使用对称和非对称加密技术的加密技术。我们使用AES, DES和RSA加密算法的部分构建了一个混合加密系统,以利用这两种算法的优点并克服其弱点,以确保存储在云上的数据的安全性。使用这种混合密码系统,存储在云上的数据可以根据用户的请求访问或检索,而无需直接访问服务器计算机。但是,关于在云上存储数据的主要问题是安全性,这里使用提议的混合加密系统来实现安全性。最后,将该算法与现有的AES、DES和RSA算法进行了比较。
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引用次数: 4
Compact Wearable Microstrip Patch Antenna for 2.4 GHz using Loaded Slits and Shorting Pins 2.4 GHz紧凑型可穿戴微带贴片天线,采用负载狭缝和短针
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619435
S. Arulmurugan, T. R. Sureshkumar, Z. C. Alex
A compact wearable microstrip patch antenna is designed to operate at ISM 2.4 GHz, printed on semiflexible ROGER 3003 substrate. Loaded slits with shorting pins are proposed to reduce the size of the patch and enhance the bandwidth of the antenna. The proposed antenna size is reduced by 20% (0.376 λo x 0.429 λo x 0.0248 λo) when compared with the conventional patch antenna. The slot length, width, gap and position of the shorting pins are adjusted to reduce the size of patch and achieve a better gain (3.53dBi at 2.4 GHz). Moreover, to examine its specific absorption rate (SAR) performance of this work, its simulated-on sample human phantom tissue model and results show that the average SAR performance of 10 g tissue is 0.6538 W/kg. This antenna is suitable for wireless body area network (WBAN) applications and ISM Bands.
设计了一种紧凑型可穿戴微带贴片天线,工作在ISM 2.4 GHz,印刷在半柔性ROGER 3003衬底上。为了减小贴片的尺寸,提高天线的带宽,提出了带短引脚的加载缝。与传统贴片天线相比,天线尺寸减小了20% (0.376 λo x 0.429 λo x 0.0248 λo)。通过调整短引脚的插槽长度、宽度、间隙和位置,减小贴片尺寸,获得更好的增益(2.4 GHz时为3.53dBi)。此外,为了检验其比吸收率(SAR)性能,本工作对其进行了模拟,结果表明,10 g组织的平均SAR性能为0.6538 W/kg。该天线适用于无线体域网络(WBAN)应用和ISM频段。
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引用次数: 2
Identification of Suitable Substrate for Textile Antenna in Biomedical Patient Monitoring Application 纺织天线在生物医学病人监测中的应用
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619376
N. Lakshmipriya, C. Manimegalai, Sabitha Gauni, K. Kalimuthu
This paper gives the suggestions about the selection of the substrate material for the textile antenna design for the application of the biomedical patient monitoring. Since the antenna is selected for the biomedical application, the frequency of the operation of the antenna is selected in the band of Industrial, scientific and Medical (ISM) band. The band covers the frequency range of 2.4GHz to 2.484GHz. Denim material which is in the form of woven is used as the substrate with the permittivity of 1.67 and thickness of 2mm. The gain and directivity of the antenna is 7.01dBi and 7.77dBi respectively. The direction of the propagation is opposite to the body model hence the antenna not harm the body tissue. The return loss value is lesser than -10dB in the operating frequency of the antenna with wider bandwidth and hence it is suitable for biomedical application.
本文对生物医学病人监护应用中纺织天线设计中衬底材料的选择提出了建议。由于天线选择用于生物医学应用,因此天线的工作频率选择在工业,科学和医疗(ISM)频段。该频段覆盖2.4GHz ~ 2.484GHz的频率范围。衬底采用牛仔布材料,为机织形式,介电常数为1.67,厚度为2mm。天线的增益和指向性分别为7.01dBi和7.77dBi。由于天线的传播方向与人体模型相反,因此天线不会对人体组织造成伤害。在带宽较宽的天线工作频率下,回波损耗值小于-10dB,适合生物医学应用。
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引用次数: 0
A ZVS-PWM Bi-directional DC-DC Converter for Electric Vehicle Systems 用于电动汽车系统的ZVS-PWM双向DC-DC变换器
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619345
Ranjan Pramanik, A. P. Biswal, J. K. Pradhan, B. B. Pati
This paper designs a low-cost DC-DC converter topology with hybrid energy storage for the application of electric vehicle system. In the proposed topology the bidirectional power flow among the battery, super-capacitor and the DC motor are maintained by a single power switch, along with an auxiliary switch, coupled inductor and resonant inductor. To reduce the switching stress the ZVS (Zero Voltage Switching) condition is achieved by utilizing the auxiliary diode, resonant inductor and capacitor. Further the size of the converter is reduced by using an auxiliary thyristor which is responsible for the power flow during motoring condition. Moreover, in order to avoid the frequent charging and discharging of battery, the voltage profile of the super-capacitor is maintained higher than the battery by the converter. The working of the proposed topology is tested and verified through MATLAB simulation.
针对电动汽车系统,设计了一种低成本的混合储能DC-DC变换器拓扑结构。在所提出的拓扑结构中,电池、超级电容器和直流电机之间的双向功率流由单个电源开关以及辅助开关、耦合电感和谐振电感维持。为了减小开关应力,利用辅助二极管、谐振电感和电容实现了零电压开关。此外,通过使用辅助晶闸管来减小变换器的尺寸,该晶闸管负责在运动条件下的功率流。此外,为了避免电池的频繁充放电,超级电容器的电压分布通过变换器保持在高于电池的水平。通过MATLAB仿真对所提拓扑的工作原理进行了测试和验证。
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引用次数: 1
Power System Frequency Estimation using Teager Energy operator 基于Teager能量算子的电力系统频率估计
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619454
Shankar Pandit, R. Naresh
Under unbalanced and harmonic conditions, this paper proposes a fundamental frequency estimation technique for three-phase voltage systems. And the technique is based on the Clark transformation, recursive discrete Fourier transform, and Teager energy operator, it is computationally effective and relatively easy to implement, making it perfect for low-cost applications. It does not require real-time estimation of the computationally challenging inverse trigonometric function. The proposed approach has no aggregation error and it is not affected even though the signal is sampled at zero or close to zero. It takes settling time less than 15ms (i.e. 75% of the one fundamental time period) for estimating the fundamental frequency step range of ±7.5Hz from the nominal value. Hence it produces a fast response under dynamic conditions. Simulation is used to verify the technique's performance.
在不平衡和谐波条件下,提出了一种三相电压系统基频估计技术。该技术基于Clark变换、递归离散傅里叶变换和Teager能量算子,计算效率高,相对容易实现,非常适合低成本应用。它不需要对具有计算挑战性的反三角函数进行实时估计。所提出的方法没有聚合误差,即使信号在零或接近零的位置采样也不受影响。从标称值估计±7.5Hz的基频步进范围,所需的沉降时间小于15ms(即一个基频时间段的75%)。因此,它在动态条件下产生快速响应。通过仿真验证了该技术的性能。
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引用次数: 0
Solar PV based Autonomous Low Voltage DC Microgrid for Remote Electrification 基于太阳能光伏的自主低压直流微电网远程电气化
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619294
Yugal Kishor, C. H. Kamesh Rao, R. N. Patel, A. Tiwari
The low-voltage DC microgrids (LVDC-MGs) have gained considerable popularity among stakeholders, researchers/engineers and have created a new trend for the development of microgrids, with the benefits of reduced conversion loss and simple control, as generation and storage technologies such as photovoltaic (PV) and battery storage have improved efficiency at a decreased cost. However, appropriate control schemes are critical for incorporating the source and load variations. The voltage stability and power-sharing between renewable energy sources (RESs) and energy storage systems (ESSs) within the microgrid are important concerns concerning stability and reliability. The performance of the proposed work is demonstrated in MATLAB Simulink for stand-alone LVDC MG with PV arrays and ESSs and analyzed under the variation of solar irradiance, which was found to be suitable for remote household electrification. The results achieved from the simulation illustrated an autonomous DCMG capable of supplying the daily energy requirements of the system with decent voltage stability.
低压直流微电网(lvdc - mg)已经在利益相关者、研究人员/工程师中获得了相当大的普及,并创造了微电网发展的新趋势,具有减少转换损失和简单控制的好处,因为光伏(PV)和电池存储等发电和存储技术以较低的成本提高了效率。然而,适当的控制方案对于合并源和负载变化至关重要。微电网内可再生能源和储能系统之间的电压稳定和电力共享是影响微电网稳定性和可靠性的重要问题。在MATLAB Simulink中对具有光伏阵列和ESSs的独立LVDC MG进行了性能验证,并在太阳辐照度变化下进行了分析,发现该工作适用于远程家庭电气化。仿真结果表明,自主DCMG能够满足系统的日常能量需求,并具有良好的电压稳定性。
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引用次数: 4
Asymmetric fed Quad band Monopole Antenna for 5G and Space Applications 用于5G和空间应用的非对称馈电四波段单极天线
Pub Date : 2021-05-19 DOI: 10.1109/ETI4.051663.2021.9619216
M. Subbareddy, D. Prasad, V. P. Phani Ponnapalli, A. Pathi, J. Kumar, C. Krishna
In this paper, a quad band monopole antenna excited by the asymmetric coplanar strip (ACS) feed is designed for 5G and space applications. The top plane is composed of a narrow rectangular slot with extended L -shaped strips on the top surface of substrate and bottom is partial ground plane. It is designed on FR-4 substrate with thickness 0.8mm and it has compact size 11mm*16mm. The simulated and measured results show that the proposed antenna can operate over the 3.36–3.45 GHz, 3.75–3.80 GHz, 4.65–5.06GHz and 6.55–6.70 GHz. The proposed antenna reaches maximum gain over 5 – 6dB and its radiation efficiency is 76 – 90%. It is observed that the proposed antenna has good radiation pattern and good acceptable gain over operating bandwidth. This design process is simulated using HFSS simulation tool.
本文设计了一种采用非对称共面馈电激励的四波段单极天线,用于5G和空间应用。顶面由衬底上表面上带有延伸L形条的窄矩形槽组成,底部为局部接地面。它是在厚度0.8mm的FR-4基板上设计的,紧凑尺寸为11mm*16mm。仿真和实测结果表明,该天线可以在3.36 ~ 3.45 GHz、3.75 ~ 3.80 GHz、4.65 ~ 5.06GHz和6.55 ~ 6.70 GHz频段工作。该天线最大增益为5 ~ 6dB,辐射效率为76 ~ 90%。观察到所提出的天线在工作带宽上具有良好的辐射方向图和良好的可接受增益。本设计过程采用HFSS仿真工具进行仿真。
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引用次数: 0
期刊
2021 Emerging Trends in Industry 4.0 (ETI 4.0)
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