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2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)最新文献

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Common DC Bus Charging System for EVs with Solar, Wind, Battery and Fuel Cell Sources 通用直流母线充电系统的电动汽车与太阳能,风能,电池和燃料电池的来源
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938196
Pavitra Shukl, Bhim Singh
A promising solution to meet the growing charging demand of electric vehicles (EVs), is to incorporate renewable energy resources based charging stations. Thus, a cascaded IIR filter is utilized here for the EV charging system based on PV array, fuel cell stack and wind turbine sources. The satisfactory operation during the grid availability/unavailability is attained through the current and voltage based control mechanisms, along with the seamless transition capability via switching (STS-1/0) of the static transfer switches. Therefore, for adequate operation during modes associated with grid existence and non-existence, a cascaded IIR filter is utilized. Moreover, with respect to various weak grid conditions, adequate system performance is observed.
为了满足电动汽车日益增长的充电需求,一个很有希望的解决方案是建立基于可再生能源的充电站。因此,本文将级联IIR滤波器用于基于光伏阵列、燃料电池堆和风力涡轮机源的电动汽车充电系统。通过基于电流和电压的控制机制,以及通过静态转换开关(STS-1/0)的无缝转换能力,在电网可用/不可用期间实现令人满意的运行。因此,为了在与网格存在和不存在相关的模式期间进行适当的操作,使用了级联IIR滤波器。此外,在各种弱电网条件下,系统性能良好。
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引用次数: 0
Low Noise Amplifier for the Wearable IoT Sensing System 用于可穿戴物联网传感系统的低噪声放大器
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938297
Dayarnab Baidya, Athul Krishnan, M. Bhattacharjee
Wireless systems and Internet of Things (IoT) sensing applications need Low Noise Amplifiers (LNA). However, a simple design is desirable for wearable IoT applications. In this direction, a single-stage LNA having considerable gain, stability, and noise figure (NF) for wearable IoT applications have been designed. An analysis of gain, noise factor, and stability for various values of gate voltage is performed to determine the utility and performance. The transistor used here is a Low Noise Gallium Arsenide FET and lumped components are used for matching at input and output side. It is found that the proposed LNA has 15.689 dB forward gain, a bandwidth of 1600 MHz and 0.672 dB Noise Figure at frequency 2.4 GHz that can be used for sensors operating in LS bands of frequencies. The LNA has been designed with fewer components in order to make it suitable for wearable IoT.
无线系统和物联网(IoT)传感应用需要低噪声放大器(LNA)。然而,对于可穿戴物联网应用来说,简单的设计是可取的。在这个方向上,为可穿戴物联网应用设计了具有可观增益、稳定性和噪声系数(NF)的单级LNA。对各种栅极电压值的增益、噪声因数和稳定性进行了分析,以确定其效用和性能。这里使用的晶体管是一个低噪声砷化镓场效应管,在输入端和输出端使用集总元件进行匹配。结果表明,该LNA的正向增益为15.689 dB,带宽为1600 MHz, 2.4 GHz时噪声系数为0.672 dB,可用于工作在LS频段的传感器。LNA设计了更少的组件,以使其适合可穿戴物联网。
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引用次数: 0
Optimal Control Path for Dual Active Bridge based Solid-State Transformer 双有源桥式固态变压器的最优控制路径
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938190
Karthik Singh Parihar, Waiahat Khan, Jahangeer Ahmad Dar, M. K. Pathak
This paper proposes a control technique for a Dual active bridge (DAB) based Solid State transformer (SST). An input folder circuit, DAB DC/DC converter, and output unfolder circuit comprise the proposed converter topology. This article analyzes soft-switching conditions and transformer current stress for DAB based SST topology at different load conditions and suggests an optimal control path. The proposed control path is created by choosing the ideal set of control variables, thus extending the ZVS range and lowering current stress. The traditional Phase shift modulation (PSM) method is compared with the proposed control strategy, and the results show improved performance. To verify the effectiveness of the suggested control technique, experimental findings from a scaled-down prototype are provided.
提出了一种基于双有源电桥(DAB)的固态变压器(SST)控制技术。输入折叠电路、DAB DC/DC变换器和输出折叠电路构成所提出的变换器拓扑结构。本文分析了基于DAB的SST拓扑在不同负载条件下的软开关条件和变压器电流应力,提出了最优控制路径。通过选择理想的控制变量集来创建所提出的控制路径,从而扩大了ZVS范围,降低了电流应力。将传统的移相调制(PSM)方法与所提出的控制策略进行了比较,结果表明该控制策略的性能有所提高。为了验证所建议的控制技术的有效性,提供了缩小原型的实验结果。
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引用次数: 0
LTspice Simulation Analysis for Loss Estimation of GaN MOSFET based Class E Resonant Inverter 基于GaN MOSFET的E类谐振逆变器损耗估计的LTspice仿真分析
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938227
Kundan Kumar, Vikram Kumar Saxena
The class E resonant inverter is generally used in numerous applications where low power as well as high frequency is needed. The losses of class E resonant inverters are estimated in this work by considering silicon (Si) and gallium nitride (GaN) MOSFETs. Further, the function of a class E inverter, analytical steady-state analysis, and modelling of power losses are demonstrated. Moreover, a comparative analysis of class E resonant inverter using Si and GaN MOSFETs is presented considering the higher operating frequency and a compromise between the device voltage and current stresses. The simulation analysis is done with the help of LTspice to validate the theoretical analysis. It is observed that using GaN MOSFET based class E resonant inverter is capable to reduce the losses by 5–6 % (approx.) compared with the Si MOSFET based class E inverter.
E类谐振逆变器通常用于需要低功率和高频率的众多应用中。通过考虑硅(Si)和氮化镓(GaN) mosfet,估计了E类谐振逆变器的损耗。此外,还演示了E类逆变器的功能、解析稳态分析和功率损耗建模。此外,考虑到更高的工作频率以及器件电压和电流应力之间的折衷,对使用Si和GaN mosfet的E类谐振逆变器进行了比较分析。利用LTspice进行了仿真分析,验证了理论分析的正确性。我们观察到,与基于Si MOSFET的E类逆变器相比,使用基于GaN MOSFET的E类谐振逆变器能够减少5 - 6%(大约)的损耗。
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引用次数: 0
A New Symmetrical Multilevel Inverter with Reduced Components Using Carrier Based PWM Technique 基于载波脉宽调制技术的新型减分量对称多电平逆变器
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938309
Amrita Singh, Sulata Bhandari, J. Kumar
A wide attention from academia and industry have been received for Multilevel Inverters (MLIs) as they offer high power capacity with lower harmonics and less switching losses. Usage of large number of switches in the conventional configuration causes a limitation which leads to the development of new topology with less switch count. This paper presents a development of Reduced Switch Single Source (RSSS) MLI which is capable of producing all voltage levels. The analysis of RSSS MLI is done using 15- level MLI which consists of very less number of components as compared with conventional topologies, thereby ensuring the reducing size, minimum switching loss and installation cost. The harmonic contents of output voltage is obtained and compared using carrier-based PWM technique. MATLAB/Simulink environment is used to validate the results.
多电平逆变器由于具有高功率、低谐波、低开关损耗等优点,受到了学术界和工业界的广泛关注。在传统配置中使用大量的交换机会造成限制,从而导致使用较少交换机数量的新拓扑的发展。本文介绍了一种能够产生所有电压等级的简化开关单源(RSSS) MLI的发展。采用15级MLI对RSSS MLI进行分析,与传统拓扑结构相比,该结构由很少数量的组件组成,从而确保减小尺寸,最小的开关损耗和安装成本。利用基于载波的PWM技术,得到了输出电压的谐波含量并进行了比较。利用MATLAB/Simulink环境对结果进行验证。
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引用次数: 1
S-SEJAD through Steganography S-SEJAD通过隐写
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938339
Ahmed El Emine Sejad, K. W. Keita, K. Tall, I. Diop
Communication has always been an indispensable means of everyday life. The Diffie-Hellman (DH) model [1] was one of the historical mechanisms that allow two entities to communicate without prior knowledge. DH has known over time several variants dealing with different aspects (security, speed, etc). One of these variants is called S-SEJAD [2], which is a model we proposed to secure key exchange. In this paper, we propose an enhancement to this model in order to be able to unobtrusively share the AES key [3] as well as the p value and g value, which further secure the data exchange process. The obtained results show the performance of our model in terms of time and robustness.
通信一直是日常生活中不可或缺的手段。Diffie-Hellman (DH)模型[1]是允许两个实体在没有先验知识的情况下进行通信的历史机制之一。随着时间的推移,DH已经知道了处理不同方面(安全性、速度等)的几个变体。其中一种变体称为S-SEJAD[2],这是我们提出的用于确保密钥交换安全的模型。在本文中,我们提出了对该模型的增强,以便能够不显眼地共享AES密钥[3]以及p值和g值,从而进一步保证数据交换过程的安全性。得到的结果表明,该模型在时间和鲁棒性方面具有良好的性能。
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引用次数: 0
Resource Allocation in Edge Computing: A Game-Theoretic Perspective 边缘计算中的资源分配:博弈论视角
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938234
Sumit Kumar, Ruchir Gupta, K. Lakshmanan
Edge computing is a novel computing framework that offers decentralized computing power in order to reduce latency and save bandwidth. This technology is critical in the fast-evolving app market, where app vendors hire edge servers to serve their users. To compete with others, each app vendor wants to employ the edge servers in such a way that it costs the least. Therefore, all app vendors need a solution that minimizes the cost of hiring edge servers. This paper proposes an Edge Server Hiring game (ESHGame), a game-theoretical approach to the problem that formulates it as a potential game. We demonstrate in ESHGame that app vendors collectively achieve at least one pure Nash equilibrium (PNE). We also set an upper bound on the price of stability in this game.
边缘计算是一种新的计算框架,它提供分散的计算能力,以减少延迟和节省带宽。这项技术在快速发展的应用程序市场中至关重要,应用程序供应商雇用边缘服务器为用户服务。为了与其他人竞争,每个应用程序供应商都希望以成本最低的方式使用边缘服务器。因此,所有应用程序供应商都需要一种解决方案,将租用边缘服务器的成本降至最低。本文提出了一种边缘服务器雇佣游戏(ESHGame),这是一种游戏理论方法,将其作为一种潜在的游戏来阐述。我们在ESHGame中证明,应用程序供应商集体实现至少一个纯纳什均衡(PNE)。在这个博弈中,我们还设定了稳定代价的上限。
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引用次数: 0
Electro-Mechanical Mode Identification of a BESS Integrated Grid System Through Subspace Identification Method 基于子空间辨识法的BESS集成网格系统机电模式辨识
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938329
Fahim Al Hasnain, S. Kamalasadan, Michael Smith
Increasing the penetration of renewable energy sources into an existing power system reduces the system's inertia, which can result in stability issues. Consequently, monitoring the different oscillatory modes resulting from an inverter-based generation's integration to a grid is of great concern. Most renewable energy sources operate based on maximum power point tracking (MPPT), because of economic reasons, since they are strongly dependent on weather conditions, which are intermittent and fluctuate. Battery energy storage systems (BESS) can provide a solution to the stochastic nature of renewable energy sources, because of a BESS's capability to store energy, support bidirectional energy exchange, provide geographical independence, and support fast output response. In this paper, a BESS along with a photovoltaic (PV) system are connected to a power grid via grid following and grid forming control architectures to study the oscillatory modes. A subspace identification method is used to identify oscillatory modes and their damping ratios from the measured voltage dynamics are obtained for the test system.
增加可再生能源对现有电力系统的渗透减少了系统的惯性,这可能导致稳定性问题。因此,监测由基于逆变器的发电整合到电网的不同振荡模式是非常值得关注的。由于经济原因,大多数可再生能源基于最大功率点跟踪(MPPT)运行,因为它们强烈依赖于间歇性和波动的天气条件。电池储能系统(BESS)可以为可再生能源的随机性提供解决方案,因为BESS具有存储能量、支持双向能量交换、提供地理独立性和支持快速输出响应的能力。本文将BESS与光伏(PV)系统通过电网跟随和电网形成控制体系连接到电网,研究其振荡模式。采用子空间识别方法对系统的振动模式进行识别,并根据实测电压动态得到系统的振型阻尼比。
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引用次数: 0
Single-Stage Isolated AC/AC Converter for Solid-State Transformer 固态变压器用单级隔离AC/AC变换器
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938301
Wajahat F. Khan, Jahangeer Ahmad Dar, Karthik Singh Parihar, M. Pathak
Single-stage AC to AC converter topology based solid-state transformers (SSTs) are being explored nowadays because of the higher efficiency of conversion. This paper presents a novel single-stage AC/AC converter topology for the solid-state transformer (SST), based on the LLC resonant converter. Four-quadrant ac switches are utilized on the primary side of the proposed converter to eliminate the folding bridge requirement and give a direct connection to the ac grid. Load-independent operation can be achieved by operating at the resonant frequency of the converter. Thin-film capacitors are used instead of bulky electrolytic capacitors to reduce the overall system capacitance and achieve high power density. Operating modes and soft-switching conditions are discussed in detail. Hardware prototype is developed to validate the operation of the proposed converter.
基于单级交流到交流变换器拓扑结构的固态变压器(SSTs)由于具有更高的转换效率,目前正在被探索。提出了一种基于LLC谐振变换器的固态变压器(SST)单级AC/AC变换器拓扑。四象限交流开关被利用在拟议的转换器的主侧,以消除折叠桥的要求,并提供一个直接连接到交流电网。通过在变换器的谐振频率下工作,可以实现与负载无关的工作。薄膜电容器被用来代替笨重的电解电容器,以减少整个系统的电容和实现高功率密度。详细讨论了工作模式和软开关条件。硬件样机的开发验证了所提出的转换器的运行。
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引用次数: 0
Enhanced DV-Hop Algorithm using modified mutation factor based Differential Evolution 基于改进变异因子的差分进化改进DV-Hop算法
Pub Date : 2022-09-23 DOI: 10.1109/GlobConPT57482.2022.9938246
M. Niranjan, Buddha Singh
The Internet of Things (IoT) becoming popular day by day as it's a vast set of applications. All these applications are based on smart and tiny sensors. In many applications, information sensed by the sensor is useful, if its location is known. Therefore, the sensor node's accurate location is required in the monitoring region for realistic applications. In, a Wireless Sensor Network (WSN), finding the correct location of sensors is a challenging task. To overcome the shortcoming of DV-Hop, in this paper, modified differential evolution-based enhanced DV-Hop (DEEDV-Hop) is proposed. The proposed DEEDV-Hop has three phases, phase one is similar to the original “DV-Hop”, in the second phase, the hopsize of Beacon Nodes (BN) is calculated at Unidentified Node (UN) to reduce the energy consumption and at least three BNs is selected in the nearby vicinity of UN. For hopsize computation, only those BNs are selected which have their mutual hop distance close to the integer value of communication radius (R). Finally, the modified differential evolution (DE) algorithm is used to find the location of UNs. The adjustment factor is added to refine the hopsize. The simulation findings confirm that, when compared to existing localization schemes, our proposed technique enhances Localization Accuracy (LA) and minimizes Localization Error (LE), Localization Error Variance (LEV).
物联网(IoT)日益流行,因为它是一个庞大的应用程序集。所有这些应用都是基于智能和微型传感器。在许多应用中,如果传感器的位置是已知的,那么传感器所感知的信息是有用的。因此,在实际应用中,需要传感器节点在监测区域内的准确定位。在无线传感器网络(WSN)中,找到传感器的正确位置是一项具有挑战性的任务。为了克服DV-Hop算法的不足,本文提出了一种改进的基于差分进化的增强DV-Hop算法(DEEDV-Hop)。提出的DEEDV-Hop有三个阶段,第一阶段类似于原来的“DV-Hop”,第二阶段在ununknown Node (UN)处计算Beacon Nodes (BN)的hopsize以降低能耗,并且在UN附近至少选择3个BN。在hopsize计算中,只选择互跳距离接近通信半径(R)的整数bn。最后,使用改进的差分进化(DE)算法找到UNs的位置。通过加入调整因子来细化hopsize。仿真结果表明,与现有的定位方案相比,我们提出的定位方法提高了定位精度(LA),最小化了定位误差(LE)和定位误差方差(LEV)。
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引用次数: 0
期刊
2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)
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