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2021 12th International Renewable Energy Congress (IREC)最新文献

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A New Application of Mayfly Optimization Algorithm for Parameter Estimation of Single-Phase Transformer Mayfly优化算法在单相变压器参数估计中的新应用
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624854
Mohamed H. Hassan, Heba Youssef, S. Kamel, F. Jurado
In this paper, the Mayfly Optimization algorithm (MA) is proposed to identify the parameters of the single-phase power transformer which is considered as one of the electric engineering optimization problems. This study aims to estimate equivalent circuit parameters of a single-phase transformer using current and voltage values at any known load. The difference between actual and estimated parameter values has been minimized using the MA technique and obtaining the best values for these parameters. The optimum value of the errors between the measured and the estimated values of the primary current, secondary current, and secondary voltage at full load using the proposed MA algorithm was compared with three other algorithms (Particle Swarm Optimization (PSO), Differential Evolution (DE) and Shuffled frog-leaping algorithm (SFLA)). The obtained results confirm that the proposed technique can be used for single-phase transformer parameters identification.
本文提出了基于Mayfly优化算法的单相电力变压器参数辨识问题,该问题被认为是电力工程优化问题之一。本研究的目的是估计等效电路参数的单相变压器使用电流和电压值在任何已知负载。利用MA技术最小化了实际参数值与估计参数值之间的差异,并获得了这些参数的最佳值。将该算法与粒子群算法(PSO)、差分进化算法(DE)和shuffle青蛙跳跃算法(SFLA)进行比较,得到满载时一次电流、二次电流和二次电压的测量值与估计值之间误差的最优值。结果表明,该方法可用于单相变压器参数识别。
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引用次数: 2
Gain-scheduled frequency control in a microgrid 微电网增益调度频率控制
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624885
M. Nachidi, F. Tadeo
This paper proposes a robust H∞ static output-feedback (SOF) controller design method for microgrid using Linear Parameter-Varying (LPV) approach. The proposed controller is designed to not only ensure a good frequency response with disturbance rejection, but also to provide the robustness in despite changes of the inertia of the grid. Two scenarios are studied in simulation to show the good steady-state and dynamic behaviours of the closed-loop system.
提出了一种基于线性参数变化(LPV)方法的微电网鲁棒H∞静态输出反馈(SOF)控制器设计方法。所设计的控制器不仅保证了良好的频率响应和抗干扰性,而且在网格惯性变化的情况下也提供了鲁棒性。仿真研究了两种情况,证明了闭环系统具有良好的稳态和动态特性。
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引用次数: 0
Performance Analysis of Small Signal of Benban Solar Park Integrated with Battery ESS Optimized by EMS during Uncertainty Condition 不确定条件下EMS优化电池ESS集成的本班太阳能园区小信号性能分析
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624807
Azza Mustafaa, A. Rashad, S. Kamel, L. Nasrat, F. Jurado
The coupling of electrical networks with renewable energy plants has led to the emergence of many requirements and issues. These days the phenomenon of using energy storage systems (ESS) with renewable energy plants, especially solar one becomes the focus of attention of some research. In this paper, energy management system method (EMS) is applied to a small signal of solar photovoltaic system located at Benban associated with Battery energy storage system (BESS). The main aim of the paper is to achieve the flexibility and balance between the demanded power and cost during uncertainty condition. Actual data of Benban solar park and MATLAB Simulink package are used to create a Matlab model of a small signal of Benban Solar Park.
电网与可再生能源工厂的耦合导致了许多要求和问题的出现。近年来,将储能系统(ESS)与可再生能源电站,特别是太阳能电站结合使用的现象已成为一些研究的焦点。本文将能量管理系统方法(EMS)应用于与电池储能系统(BESS)相关联的Benban小信号太阳能光伏系统。本文的主要目的是在不确定条件下实现电力需求和成本之间的灵活性和平衡。利用本班太阳能园区的实际数据和MATLAB Simulink软件包,建立了本班太阳能园区小信号的MATLAB模型。
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引用次数: 1
[IREC 2021 Breaker Page] [IREC 2021断路器页面]
Pub Date : 2021-10-26 DOI: 10.1109/irec52758.2021.9624874
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引用次数: 0
Impact of COVID-19 on Electric Energy Consumption 新冠肺炎疫情对电能消耗的影响
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624928
Nabeel A. Tawalbeh, Suad S. Al Mattar, Wejdan Abu Elhaija, M. Khasawneh
COVID-19 has been a source of great disruption to governments and people ali over the world. Health care systems have been overwhelmed, already destabilized financial markets further jeopardized, with oil and energy markets plunging into crises and economic activities coming to severe halts. To keep people connected while working from home and upholding life-saving facilities in hospitals and around industrial regimes, reliable affordable electricity is imminent. As an immediate consequence of the pandemic, much pressure has befallen countries with low-energy reserves, where the energy sectors involved had already been staggering and facing major challenges ahead of COVID-19. Jordan’s, being of these impacted countries, peak demand on electricity decreased by 17.5% by early April 2020 compared with the mean 2019 levels. Based on the ARMA and ARIMA models obtained, the impact on 2020 electricity demand in Jordan depends on the durations and levels of the confinement/s, with a low estimate of 2.76% if pre pandemic conditions return by mid-September (2020), and a high estimate of 7% if some restrictions remain in effect worldwide until the end of 2020. This article reports the short-term impact of the COVID-19 pandemic on the energy sector in Jordan, with Jordan being a typical example of many such countries worldwide. This will help leverage contingencies and good planning that would help the energy sectors worldwide remain within some sustainable regime/s.
新冠肺炎疫情给世界各国政府和人民带来了巨大干扰。卫生保健系统不堪重负,本已不稳定的金融市场进一步受到威胁,石油和能源市场陷入危机,经济活动严重停顿。为了在人们在家工作的同时保持网络连接,维护医院和工业设施的救生设施,可靠、负担得起的电力迫在眉睫。大流行的直接后果是,能源储量低的国家承受了巨大压力,这些国家的能源部门在2019冠状病毒病之前已经处于惊人状态,面临重大挑战。约旦是这些受影响的国家之一,到2020年4月初,电力峰值需求与2019年的平均水平相比下降了17.5%。根据获得的ARMA和ARIMA模型,对约旦2020年电力需求的影响取决于限制的持续时间和水平,如果到2020年9月中旬大流行前的条件恢复,则低估计为2.76%,如果到2020年底全球范围内的一些限制仍然有效,则高估计为7%。本文报道了2019冠状病毒病大流行对约旦能源部门的短期影响,约旦是世界上许多此类国家的典型例子。这将有助于利用突发事件和良好的规划,帮助全球能源部门保持在某种可持续的体制内。
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引用次数: 0
Smart Battery Management System for Integrated PV, Microinverter and Energy Storage 集成光伏、微逆变器和储能的智能电池管理系统
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624748
Sahin Gullu, Justin R. Phelps, I. Batarseh, Khalil Alluhaybi, M. Salameh, S. Al-Hallaj
This paper presents a Smart Battery Management System (SBMS) for integrated PV, Microinverter with Lithiumion battery pack. The battery in the integrated module is mainly dedicated to store the excess power generated from the PV panel. The battery also operates as a backup power source to compensate for the power mismatch between the source and the load. Therefore, the incorporated management system in the integrated module is necessary for balancing, protecting, and optimizing the lifetime of the battery. The proposed SBMS aims to optimize the battery capacity of each PV panel, provides thermal management strategy, and Master Controller Unit (MCU). MCU is the main controller which includes control algorithm for the 3-port microinverter and estimates the state-of-functions such as state-of-charge (SOC) and state-of-health (SOH) to make the integrated system more secure, reliable, and cost effective. In the paper, the optimum battery size has been simulated, the algorithm for MCU is described with battery model, and the battery modelling and state-of-functions have been theoretically and experimentally verified.
提出了一种集成光伏、微型逆变器和锂离子电池组的智能电池管理系统(SBMS)。集成模块中的电池主要用于存储光伏板产生的多余电能。电池还可以作为备用电源,以补偿电源和负载之间的功率不匹配。因此,集成模块中的集成管理系统是平衡、保护和优化电池寿命的必要条件。SBMS旨在优化每个光伏面板的电池容量,提供热管理策略和主控制器单元(MCU)。MCU是主控制器,包括3端口微型逆变器的控制算法,并估计功能状态,如充电状态(SOC)和健康状态(SOH),使集成系统更加安全,可靠和经济高效。本文对最佳电池尺寸进行了仿真,用电池模型描述了单片机的算法,并对电池建模和功能状态进行了理论和实验验证。
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引用次数: 6
Comparative analysis of thyristor-based and transistor-based rectifiers for PEM water electrolysis 用于PEM水电解的晶闸管整流器与晶体管整流器的比较分析
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624773
M. Keddar, Z. Zhang, C. Periasamy, M. Doumbia
Hydrogen is an important industrial gas for clean fuel, power-to-gas energy storage, and chemical production. In large-scale electrolysis systems with a high direct current supply, power rectifiers are important components to connect to the main power grid. Currently, Thyristor-based topology is most commonly used for large-scale industrial proton exchange membrane (PEM) water electrolysis applications due to its maturity. However, this topology cannot always satisfy the main grid requirements and instead lead to higher specific energy consumption per kilogram of hydrogen produced. Instead, the transistor-based topology is more promising to reduce the total system cost. In this research, 6-pulse thyristor-based and transistor-based topologies are compared and investigated to improve the power quality for a 20 MW PEM water electrolyzer in Air Liquide's Bécancour plant. We first built a Matlab/Simulink model to simulate the water electrolysis system. Then, we compared the power quality parameters with the plant measurement.
氢是清洁燃料、电转气储能和化工生产的重要工业气体。在需要大直流供电的大型电解系统中,电源整流器是连接主电网的重要部件。目前,基于晶闸管的拓扑结构由于其成熟,最常用于大规模工业质子交换膜(PEM)的水电解应用。然而,这种拓扑结构不能总是满足主要电网的要求,反而会导致每千克氢生产的比能耗更高。相反,基于晶体管的拓扑结构更有希望降低系统的总成本。在本研究中,比较和研究了基于6脉冲晶闸管和基于晶体管的拓扑结构,以改善液化空气b cancour工厂20 MW PEM水电解槽的电能质量。首先建立了Matlab/Simulink模型对水电解系统进行仿真。然后,我们将电能质量参数与工厂测量值进行了比较。
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引用次数: 3
Optimization of Flux Switching Permanent Magnet Motor to enhance the traction of an Electric Vehicle 磁通开关永磁电机优化提高电动汽车的牵引力
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624760
Kehinde R. Kamil, Jemilat I. Kamil, Qingsong Wang
There is a rising outcry of environmental pollution and the resulting effect of global warming caused by the use of fossil energies, there is a need for the introduction of highly efficient electric machines for propulsion and traction of the moving part with the increasing global acceptance of electric vehicles and advance machineries. This paper proposed a way to optimize the stator flux switching permanent magnet motor (FSPM) by the introduction of two dual slot additional rotors that are staged 180 degrees apart. The structure, electromagnetic properties and the phase direction of rotation of the proposed permanent magnet machine were investigated at different phase angle. Background study on the mode structure of establishing the proposed topology of one stator and two rotors instead of the conventional one rotor for the motor operation was done. With attention paid to the losses on the stator and rotor, finite element method was used to establish the structure of the proposed permanent magnet machine. The load simulation of the electromagnetic properties was investigated using FEMM 4.2 and Ansys Maxwell to show the advantages of the proposed machine topology to allowing higher electric loading to increase power density in electric vehicles.
由于化石能源的使用造成了环境污染和全球变暖的后果,人们越来越强烈地抗议。随着全球对电动汽车和先进机械的接受程度越来越高,有必要引进高效的电动机器来推进和牵引运动部件。提出了一种通过引入两个间隔180度的双槽附加转子来优化定子磁通开关永磁电机的方法。研究了该永磁电机在不同相角下的结构、电磁特性和旋转方向。本文对提出的一定子两转子拓扑结构取代传统的一转子拓扑结构的模态结构进行了背景研究。在考虑定子和转子损耗的基础上,采用有限元方法建立了永磁电机的结构。利用FEMM 4.2和Ansys Maxwell进行了电磁特性的负载仿真,以证明所提出的机器拓扑结构在允许更高的电负载以提高电动汽车功率密度方面的优势。
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引用次数: 0
Comparison of Seven Empirical Models For Estimating Monthly Global Solar Radiation, (Case Study: Libya) 估算月全球太阳辐射的七个经验模式的比较(以利比亚为例)
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624843
A. Teyabeen, Najeya B. Elhatmi, Akram A. Essnid, F. Mohamed
The aim of this study is to compare seven empirical models to find out which of them is the most efficient for estimating monthly global solar radiation. 3-years period data (2018-2020) used for the comparison were collected using automatic weather station installed at the Libyan Center for Solar Energy Research and Studies site, Tripoli, Libya (Lat. 32.815 N, Long. 13.439 E). The least square method is used to establish the models and determine their empirical coefficients. In order to evaluate the performance of the established models, three statistical error tests were introduced, root mean square error, RMSE, mean absolute percentage error, MAPE, and correlation coefficient, R2. The obtained results indicated that the weather condition is fair during May-September, and scattered clouds during the other months. The results also indicated that the sunshine duration-based quadratic model presented the best efficiency for estimating the monthly average of daily global solar radiation on a horizontal surface, where it had the highest value of correlation coefficient, and the smallest values of MAPE and RMSE of 0.93, 2.8049, and 0.0195 kWh⁄m2 ⁄day, respectively.
本研究的目的是比较七个经验模型,以找出其中哪一个是最有效的估计每月全球太阳辐射。采用利比亚的黎波里(Lat. 32.815 N, Long. 13.439 E)的利比亚太阳能研究中心自动气象站收集3年(2018-2020年)数据,利用最小二乘法建立模型并确定经验系数。为了评价所建立模型的性能,引入了三种统计误差检验,即均方根误差、RMSE、平均绝对百分比误差、MAPE和相关系数R2。结果表明:5 ~ 9月天气晴好,其余月份云量分散。基于日照时数的二次模型在水平面上估算全球日辐射月平均值的效率最高,相关系数最高,MAPE最小,RMSE最小,分别为0.93、2.8049和0.0195 kWh / m2 / day。
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引用次数: 2
Methane reforming reactions for hydrogen production using hydrotalcite precursors and nanofibers based catalysts 利用水滑石前驱体和纳米纤维为催化剂的甲烷重整制氢反应
Pub Date : 2021-10-26 DOI: 10.1109/IREC52758.2021.9624897
T. Silva, M. Chaghouri, L. Tidahy, C. Gennequin, E. Abi-aad, M. Cesario, D. Macedo
CoNiMg4Al2 catalysts were synthesized using two different methods: solution blow spinning to produce nanofibers (NF), and co-precipitation to produce hydrotalcite precursors (HT). Part of the hydrotalcite sample was ground (GR) using mechanical milling to determine the effect of grinding on the catalytic performance. The three materials (NF, HT and GR) were tested in the dry and steam reforming of methane (DRM, SRM respectively) reactions during 12h stability tests at 700°C. The calcined and the used catalysts were characterized using XRD and DTA/TG analysis. All catalysts were active during the SRM and DRM tests; however, nanofibers showed a slightly higher activity in both reactions. The dry reforming of methane reaction was more susceptible to the formation of carbon deposition leading to the deactivation of the ground catalyst.
采用溶液吹丝法制备纳米纤维(NF)和共沉淀法制备水滑石前驱体(HT)两种不同的方法合成了CoNiMg4Al2催化剂。采用机械磨矿法对部分水滑石样品进行磨矿,以确定磨矿对催化性能的影响。在700℃条件下,对三种材料(NF、HT和GR)分别在甲烷(DRM、SRM)的干重整和蒸汽重整反应中进行了12h的稳定性试验。采用XRD和DTA/TG对煅烧后的催化剂和使用后的催化剂进行了表征。在SRM和DRM试验中,所有催化剂都具有活性;然而,纳米纤维在两种反应中表现出稍高的活性。甲烷干重整反应更容易形成碳沉积,导致地面催化剂失活。
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引用次数: 1
期刊
2021 12th International Renewable Energy Congress (IREC)
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