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2023 8th International Engineering Conference on Renewable Energy & Sustainability (ieCRES)最新文献

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Fast Charging of Lithium-ion Battery for Electric Vehicles Application 锂离子电池快速充电技术在电动汽车中的应用
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209433
A. E. Halim, Y. Nassar, H. J. Khozondar, E. Bayoumi
Electric vehicles (EVs) will make up a large amount of the demand on future power networks as more people switch to driving them. Lithium-ion battery fast charging is critical to save time and minimize its impact on the utility grid. The goal of this paper is twofold: first, to create a proof-of-concept Simulink model for EV fast chargers; second, to highlight several shortcomings in present fast charger technology. The suggested technique employs PWM rectifiers on the grid side to provide a near-unity power factor with sinusoidal voltage and current. A buck DC-DC converter on the battery side provides the necessary charging voltage to the Lithium-ion battery. Both converters are designed to provide their primary objectives. A set of simulation results is provided to validate the suggested fast-charging technique. The proposed technique successfully charges a 50-kWh battery in 10.25 minutes.
随着越来越多的人转向驾驶电动汽车,电动汽车将在未来的电力网络中占据很大一部分需求。锂离子电池快速充电对于节省时间和减少对电网的影响至关重要。本文的目的有两个:首先,建立一个电动汽车快速充电器的概念验证Simulink模型;第二,突出当前快速充电器技术的几个不足。建议的技术在电网侧采用PWM整流器,以正弦电压和电流提供接近统一的功率因数。电池侧的降压DC-DC转换器为锂离子电池提供必要的充电电压。这两个转换器的设计都是为了提供它们的主要目标。给出了一组仿真结果来验证所提出的快速充电技术。该技术成功地在10.25分钟内为50千瓦时的电池充电。
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引用次数: 0
Off-grid Solar Photovoltaic BLDC motor Pumping Technology for Irrigation in Gaza Strip 加沙地带离网太阳能光伏无刷直流电机抽水灌溉技术
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209522
K. Dawoud, A. M. Abu -Hudrouss
The deficit in supply and demand for energy is a chronic problem in Gaza Strip. This creates a challenge in fields at the border regions where grid electricity is inaccessible or unreliable. Consequently, farmers use conventional energy sources and traditional irrigation methods to pump the water from tanks, basin, or rain collection artificial lakes to irrigate the required field. Diesel engines are one of the methods that are used to power pumps at the border regions. However, it incurs high-cost, and frequent maintenance, and has a high carbon dioxide fingerprint. In remote areas of the Gaza Strip, solar photovoltaic (PV) water pumping has been proven to be more cost-effective than diesel water pumping. To replace a diesel engine with solar PV to power up the pumps is faced with the fact that most available and working pumps for irrigation in Gaza Strip are alternating current (AC) motor based which requires high initial torque to start rotating. This results that more PV panels are needed and suitable controller to power it up compared to the brushless DC (BLDC) motored pump. In this paper, we introduce an off-grid solar system for irrigation where BLDC motor pump is used and compared to an equivalent AC motor pump.
能源供需不足是加沙地带的一个长期问题。这给无法获得电网供电或不可靠的边境地区带来了挑战。因此,农民使用传统的能源和传统的灌溉方法从水箱、盆地或雨水收集人工湖抽水来灌溉所需的田地。柴油发动机是边境地区使用的泵动力之一。然而,它成本高,维护频繁,并且具有高二氧化碳指纹。在加沙地带的偏远地区,太阳能光伏(PV)抽水已被证明比柴油抽水更具成本效益。用太阳能光伏代替柴油发动机为水泵供电面临着这样一个事实,即加沙地带大多数可用的和正在工作的灌溉水泵都是基于交流(AC)电机的,这需要很高的初始扭矩才能开始旋转。这导致与无刷直流(BLDC)电机泵相比,需要更多的光伏电池板和合适的控制器来为其供电。在本文中,我们介绍了一种用于灌溉的离网太阳能系统,其中使用无刷直流电机泵,并与等效的交流电机泵进行了比较。
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引用次数: 1
Enhancing the Efficiency of Thin-Film Heterojunction Solar Cells with CIGS using Alternative Metal Chalcogenide Buffer Layers: SCAPS-1D Simulation software 利用替代金属硫族化物缓冲层提高CIGS薄膜异质结太阳能电池的效率:SCAPS-1D仿真软件
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209492
S. Zyoud, Malek G. Daher, M. Shabat
In the majority of cutting-edge Copper Indium Gallium Diselenide (CIGS) photovoltaic cells, Cadmium Sulfide (CdS) is employed as the buffer layer. However, due to the hazardous properties associated with CdS, it is imperative to investigate alternative materials that can offer safety next to both environmental and economic benefits. To facilitate this investigation, the SCAPS-ID computational modeling software has been utilized to analyze pertinent data. A plethora of comprehensive studies have been conducted to ascertain whether other eco-friendly and cost-effective materials, such as Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Cadmium Selenide (CdSe), and Indium Sulfide (In283), could effectively replace the CdS (buffer) layer in CIGS solar cells. The findings indicate that when CdS and ZnSe are implemented as buffer layers, the photovoltaic cells exhibit superior performance efficiency metrics. The SCAPS-ID simulations demonstrate that optimal p-njunction device efficiency parameters are achieved when the CIGS (absorber) layer thickness spans between 1200 and 1500 nm, the ZnSe (buffer) layer thickness varies from 20 to 60 nm, and the thickness of the Aluminum-doped Zinc Oxide (ZnO:Al) (window) layer measures 25 nm.
在大多数先进的铜铟镓二硒化(CIGS)光伏电池中,硫化镉(cd)被用作缓冲层。然而,由于与cd相关的危险特性,研究能够同时提供环境和经济效益的安全替代材料势在必行。为了便于调查,利用SCAPS-ID计算建模软件分析相关数据。大量的综合研究已经进行,以确定是否其他环保和具有成本效益的材料,如硒化锌(ZnSe),硫化锌(ZnS),硒化镉(CdSe)和硫化铟(In283),可以有效地取代CIGS太阳能电池中的cd(缓冲)层。研究结果表明,当CdS和ZnSe作为缓冲层时,光伏电池表现出优异的性能效率指标。SCAPS-ID模拟表明,当CIGS(吸收层)厚度在1200 ~ 1500 nm之间,ZnSe(缓冲层)厚度在20 ~ 60 nm之间,掺铝氧化锌(ZnO:Al)(窗口)层厚度为25 nm时,p- n结器件效率参数达到最佳。
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引用次数: 0
Effect of Implementation of Energy Efficiency in Residential Sector in Libya 能效在利比亚住宅领域的实施效果
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209521
Mohammad A. Eteriki, W. El-Osta, Y. Nassar, H. J. Khozondar
The energy consumption in a household with traditional home appliances was analyzed and compared with the energy consumption using market-available energy-saving equipment in order to assess the energy efficiency potential in improving home appliances. Energy consumption from the two scenarios was compared, and emission savings was evaluated. RETSCREEN software was used to validate the findings. Money-saving calculations were conducted for this household and generalized to the entire country, emission savings were calculated, as well as total energy savings in barrels of oil equivalent, the obstacles and motivations were identified. Various policies and strategies to promote energy efficiency in home appliances were proposed.
通过对一个家庭使用传统家电的能耗进行分析,并与使用市场上现有节能设备的能耗进行比较,以评估改进家电的能效潜力。对两种方案的能耗进行了比较,并对节能减排进行了评价。采用RETSCREEN软件对结果进行验证。对这个家庭进行了省钱的计算,并推广到整个国家,计算了排放节约,以及以桶油当量计算的总能源节约,确定了障碍和动机。提出了促进家用电器节能的各种政策和策略。
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引用次数: 4
Power Transformer Fault Classification Based On Cumulative Distribution Transformation Utilizing Singular Value Decomposition 基于奇异值分解累积分布变换的电力变压器故障分类
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209454
Abu Nayem Md. Noman, Md Mahmud Hassan Sohan, Md Sakib Khan
Several fault classification-based protection methods may occasionally malfunction due to a variety of undesirable phenomena that occur in the transformer. It is crucial to differentiate between internal faults and external abnormal conditions in order to safeguard a power transformer in its entirety. The only approach to ensure unit transformer protection is through the detection of faults within power transformers. Existing relays malfunction under exceptional circumstances such as magnetizing inrush, current transformer (CT) saturation, and high resistance internal fault conditions. Therefore, it is crucial to distinguish between the internal fault and the external abnormality or fault in the scheme of transformer protection. In this study, a novel cumulative distribution transformation (CDT)-based scheme for classifying internal power transformer faults is presented. Power transformers, the indirect symmetrical phase angle regulators (ISPAR) series, and ISPAR exciting units are used to create internal faults. 13 different categories of faults are classified after the processing and analysis of 88,128 internal fault cases. Singular value decomposition (SVD) is used after CDT dataset extraction and cross-validation, and faults are identified employing a confusion matrix. The procedure was performed utilizing Matlab® 2018a, which resulted in a 96.66% overall accuracy with reduced computing time and noise reduction.
几种基于故障分类的保护方法可能会由于变压器中出现的各种不良现象而偶尔发生故障。区分变压器的内部故障和外部异常是保证变压器整体安全的关键。对电力变压器内部的故障进行检测是保证机组变压器保护的唯一途径。现有的继电器在特殊情况下,如励磁涌流、电流互感器(CT)饱和和高阻内部故障条件下会发生故障。因此,在变压器保护方案中,区分内部故障与外部异常或故障是至关重要的。提出了一种基于累积分布变换(CDT)的电力变压器内部故障分类方法。电力变压器、间接对称相角调节器(ISPAR)系列和ISPAR励磁装置用于产生内部故障。通过对88128个内部故障案例的处理和分析,将故障分为13类。对CDT数据集进行提取和交叉验证后,采用奇异值分解(SVD)进行故障识别,并采用混淆矩阵进行故障识别。该过程使用Matlab®2018a进行,总体准确率为96.66%,同时减少了计算时间和降噪。
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引用次数: 0
Appropriate Water Supply Management Considering the Israeli Invasions of the Gaza Strip 考虑到以色列对加沙地带的入侵,适当的供水管理
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209466
T. M. Alnajar, H. Al-Najar, Wessam Almadhoun
The Israeli invasions prompted the development of this study, which aimed to investigate the potential for water management problems in the Gaza Strip. This research is closely connected to the requirements that are specified in the emergency plan for the water sector in the Gaza Strip, which is designed for use during times of conflict. Another method to better prepare for shocks, such as those that may occur before, during, or after an emergency, is to take immediate action. As a result, the purpose of this research is to develop an up-to-date emergency plan that will allow for the most effective administration of the water sector during times of crisis. Taking into consideration Israel’s invasion of the Gaza Strip earlier 2021 and 2022, the significance of this study can be traced back to the fact that it addressed one of the most pressing issues, which in turn serves to save the lives of residents and supports one of the most important industries (the water sector). The study proposes a solution that can be implemented as a basic system for managing water supplies in the event of an emergency, in addition to other elements that support the management process, some of which are aligned with existing plans. The proposed solution can be applied in the case of an emergency, such as the Israeli aggression on the Gaza Strip. The most fundamental title that summarizes this study is “decentralized supplies The research will contribute to the development of an up-to-date emergency plan for the effective management of the water supply in the Gaza Strip, in the event of Israeli aggression. It will provide decision-makers with valuable instructions based on appropriate scientific methodology, to direct international organizations in carrying out better interventions aimed at enhancing and improving the water situation in the region. Professionals in the field of disaster management, as well as those interested in water concerns, will also benefit from this study.
以色列的入侵促进了这项研究的发展,其目的是调查加沙地带潜在的水管理问题。这项研究与加沙地带水部门应急计划中具体规定的要求密切相关,该计划是为冲突期间使用而设计的。另一种更好地应对冲击的方法,例如在紧急情况发生之前、期间或之后可能发生的冲击,是立即采取行动。因此,这项研究的目的是制定一项最新的应急计划,以便在危机时期对水部门进行最有效的管理。考虑到以色列在2021年和2022年早些时候入侵加沙地带,这项研究的意义可以追溯到这样一个事实,即它解决了最紧迫的问题之一,这反过来又有助于拯救居民的生命,并支持最重要的行业之一(水部门)。该研究提出了一种解决办法,除了支持管理过程的其他要素之外,还可以作为紧急情况下管理供水的基本系统加以实施,其中一些要素与现有计划相一致。拟议的解决办法可适用于紧急情况,例如以色列对加沙地带的侵略。总结这项研究的最基本的题目是"分散供应"。这项研究将有助于制定最新的应急计划,以便在以色列侵略的情况下有效管理加沙地带的供水。它将根据适当的科学方法向决策者提供宝贵的指导,指导国际组织采取更好的干预措施,以加强和改善该区域的水情况。灾害管理领域的专业人员以及对水问题感兴趣的专业人员也将从这项研究中受益。
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引用次数: 0
Moving Object Detection Based on Clustering and Event-Based Camera 基于聚类和事件相机的运动目标检测
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209469
Hanan Abu-Mariah, W. Ashour
The Moving object detection as a problem in computer vision, has the attention of researchers for its need of different applications. Event cameras are used to support moving object detection missions depending on the event camera efficiently capturing the events of moving objects compared to classic cameras. In this paper, we proposed a model that used a clustering algorithm as a machine learning approach to help detect moving objects that were captured using an event camera. The proposed model used Hierarchical clustering algorithm called “Agglomerative” and compared to partitioning and density-based clustering algorithms for the mission of detecting moving objects. Moreover, the model shows better results compared to others in previous studies with “92.07” F1-score as a performance measure.
运动目标检测作为计算机视觉中的一个重要问题,因其不同的应用需求而受到研究人员的关注。事件相机用于支持运动目标检测任务,依赖于事件相机比经典相机更有效地捕捉运动目标的事件。在本文中,我们提出了一个模型,该模型使用聚类算法作为机器学习方法来帮助检测使用事件相机捕获的移动物体。该模型采用了称为“Agglomerative”的分层聚类算法,并将其与基于分区和基于密度的聚类算法进行了比较,用于检测运动目标。此外,该模型以“92.07”f1分数作为性能度量,与以往的研究相比,显示出更好的结果。
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引用次数: 0
Developing a Micro-Grid modeling approach for Nasser Medical Complex energy demand in the Gaza Strip 为加沙地带纳赛尔医疗综合体能源需求开发微电网建模方法
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209494
Jawdat Y. Abu-Taha, H. Shaheen
In Gaza Strip, power outages lasting several hours daily are very common. In addition, today’s power systems are facing challenges of environmental protection, increasing global power demand, and high reliability requirements. Centralized plants are now being replaced by smaller, distributed plants to pave the way to green and intelligent energy systems. The microgrid concept can therefore be viewed as a group of distributed energy loads and resources that can operate as a single controllable system and encompass many renewable energy sources and energy storage systems. For the microgrid system to operate reliably, energy management of a large number of distributed energy resources is required. As a result, energy management is a critical component of microgrid operation for economic and sustainable development. In this paper, the primary goal is to look into the feasibility of installing a microgrid system for Nasser medical complex. A techno-economic analysis of the capex, savings, and financial benefit of numerous microgrid possibilities is used to justify the final design. Using the HOMER Pro tools, several scenarios and architectures were simulated and discussed in terms of their specific requirements, features, and drawbacks. The scenarios are based on different alternatives, such as replacing a plant (which consists of a diesel generator) with a solar photovoltaic (PV) system and a battery-backed energy storage system (BESS). The simulations show that Scenario 4 (Hybrid PV system with Li-Ion batteries) is the optimal configuration regarding the economic indicators. The results clearly demonstrate that an annual grid power cost of 1.70M${$}$, fuel costs of 0.40 M${$}$, and operating costs of 0.66M${$}$, with an annualized savings of 0.36 M${$}$. The hybrid approach proposed in this situation has a 48.5% IRR, a payback period of 2.06 years, and an LCOE of 181 ${$}$/MWh.
在加沙地带,每天停电数小时是很常见的。此外,当今的电力系统还面临着环境保护、全球电力需求增长和高可靠性要求的挑战。集中式发电厂现在正被规模较小的分布式发电厂所取代,为绿色智能能源系统铺平道路。因此,微电网概念可以被视为一组分布式能源负荷和资源,它们可以作为一个单一的可控系统运行,并包含许多可再生能源和储能系统。为了保证微电网系统的可靠运行,需要对大量分布式能源进行能量管理。因此,能源管理是微电网运行对经济和可持续发展的关键组成部分。在本文中,主要目标是研究为纳赛尔医疗综合体安装微电网系统的可行性。对资本支出、节约和众多微电网可能性的财务效益进行技术经济分析,以证明最终设计的合理性。使用HOMER Pro工具,模拟了几个场景和体系结构,并根据它们的特定需求、特性和缺点进行了讨论。这些方案基于不同的替代方案,例如用太阳能光伏(PV)系统和电池支持的能源存储系统(BESS)取代发电厂(由柴油发电机组成)。仿真结果表明,在经济指标方面,方案4(锂离子电池混合光伏系统)是最优配置。结果清楚地表明,每年电网电力成本为170万美元{$}$,燃料成本为0.40万美元{$}$,运行成本为0.66万美元{$}$,年化节省0.36万美元{$}$。在这种情况下提出的混合方法的内部收益率为48.5%,投资回收期为2.06年,LCOE为181美元/兆瓦时。
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引用次数: 0
Investigating the Potential of a Solar Plant at Payra Port in Revolutionizing Bangladesh’s Energy Landscape 调查Payra港口太阳能发电厂在改变孟加拉国能源格局方面的潜力
Pub Date : 2023-05-08 DOI: 10.1109/ieCRES57315.2023.10209485
Sheikh Muhammad Masum, S. Rahman
Globally, solar energy is a source of renewable energy that is expanding quickly. To produce power, renewable energy technologies like photovoltaic cells are increasingly being advised as concern about greenhouse gas emissions and environmental issues rises. Bangladesh currently has 650.53 Megawatts of installed renewable energy capacity. A unique possibility for renewable energy in the nation exists at the Port of Payra in Kalapara, Patuakhali, Bangladesh, which receives an average daily solar radiation of 4.34 kWh/m$^{mathbf{2}}$ per year. In this particular region, the location boasts several major internal strengths, such as its wide channel, river connectivity, and transportation infrastructure, which make it a place of tremendous potential. This study investigated and showed the total energy produced by a 10 kWp photovoltaic grid-connected system with various system losses. The analysis shows that a total of 15,021 kWh of energy can be injected into the grid from Payra port annually. Over a year, the proposed system performance ratio was predicted to be 91.2%, demonstrating the enormous potential for a solar plant to supply Bangladesh’s rising energy needs in the future.
在全球范围内,太阳能是一种发展迅速的可再生能源。随着对温室气体排放和环境问题的担忧加剧,人们越来越多地建议使用光伏电池等可再生能源技术来发电。孟加拉国目前的可再生能源装机容量为650.53兆瓦。孟加拉国帕图阿卡里卡拉帕拉的Payra港是该国可再生能源的独特可能性,该港口每年平均每天接收4.34千瓦时/米$^{mathbf{2}}$。在这个特殊的地区,它拥有几个主要的内部优势,如宽阔的航道、河流连接和交通基础设施,这使它成为一个巨大的潜力之地。本研究调查并展示了10 kWp光伏并网系统在不同系统损耗下产生的总能量。分析表明,每年可从Payra港向电网注入15021千瓦时的能源。经过一年的时间,预计该系统的性能比率将达到91.2%,这表明太阳能发电厂在未来满足孟加拉国不断增长的能源需求方面具有巨大的潜力。
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引用次数: 0
Simulation on the perovskite-based solar cell with graphene derivative 石墨烯衍生物钙钛矿基太阳能电池的模拟
Pub Date : 2023-05-08 DOI: 10.1109/iecres57315.2023.10209480
M. Shabat, G. Zoppi
The present paper deals with the perovskite-based solar cell with graphene derivatives as n-graphene, pgraphene, and graphene oxide. n- graphene, and $mathrm{ZnO}-mathrm{Al}$ as electron Transport layer (ETL) and p-graphene, graphene oxide, and p-type silicon as hole Transport Layer (HTL) have been examined and investigated by using SCAPA Simulation Package. The designed solar cell has been optimized by varying parameters such as perovskite layer thickness, temperature, and work function of the left contact of the structure. A comparison between the performance of some graphene types as HTL and ETL has also been simulated, displayed, and discussed.
本文研究了含n-石墨烯、p石墨烯和氧化石墨烯等石墨烯衍生物的钙钛矿基太阳能电池。利用SCAPA仿真包对n-石墨烯和$ mathm {ZnO}- mathm {Al}$作为电子传输层(ETL)和p-石墨烯、氧化石墨烯和p型硅作为空穴传输层(HTL)进行了测试和研究。通过改变钙钛矿层厚度、温度和结构左接触功函数等参数,对所设计的太阳能电池进行了优化。本文还对HTL和ETL等几种石墨烯的性能进行了模拟、展示和讨论。
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引用次数: 0
期刊
2023 8th International Engineering Conference on Renewable Energy & Sustainability (ieCRES)
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