Pub Date : 2021-10-26DOI: 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.
{"title":"Comparison of Seven Empirical Models For Estimating Monthly Global Solar Radiation, (Case Study: Libya)","authors":"A. Teyabeen, Najeya B. Elhatmi, Akram A. Essnid, F. Mohamed","doi":"10.1109/IREC52758.2021.9624843","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624843","url":null,"abstract":"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.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129592819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624902
Saber Krim, M. Mimouni
this paper proposes a performance improvement of water pumping photovoltaic system based on an induction motor drive. The first contribution of this work consists in introducing an Integral Sliding Mode Speed Controller (ISMSC) to the Direct Torque Control (DTC) of the induction motor, in order to enhance the speed regulation loop and increase the system robustness against the motor parameters variation and the sudden variation of the irradiation. The second contribution is to implement the proposed DTC-ISMSC on an FPGA board in order to reduce the sampling period of the system and the delays in the control loop. Moreover, the extract of the maximum power is performed through the Perturb and Observe (P&O) technique. Finally, the performance of the photovoltaic pumping system controlled by the proposed DTC-ISMSC and P&O is demonstrated by digital simulation using Xilinx system generator tool. The ISMSC is compared also with a proportional integral controller. The obtained results have shown the better dynamic performance of the proposed DTC-ISMSC and P&O.
{"title":"Hardware Implementation of a Novel Sliding Mode Controller for Photovoltaic Water Pumping Systems Without Energy Storage","authors":"Saber Krim, M. Mimouni","doi":"10.1109/IREC52758.2021.9624902","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624902","url":null,"abstract":"this paper proposes a performance improvement of water pumping photovoltaic system based on an induction motor drive. The first contribution of this work consists in introducing an Integral Sliding Mode Speed Controller (ISMSC) to the Direct Torque Control (DTC) of the induction motor, in order to enhance the speed regulation loop and increase the system robustness against the motor parameters variation and the sudden variation of the irradiation. The second contribution is to implement the proposed DTC-ISMSC on an FPGA board in order to reduce the sampling period of the system and the delays in the control loop. Moreover, the extract of the maximum power is performed through the Perturb and Observe (P&O) technique. Finally, the performance of the photovoltaic pumping system controlled by the proposed DTC-ISMSC and P&O is demonstrated by digital simulation using Xilinx system generator tool. The ISMSC is compared also with a proportional integral controller. The obtained results have shown the better dynamic performance of the proposed DTC-ISMSC and P&O.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130840533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624904
Zoubayre El akili, Y. Bouzidi, A. Merabtine, Julien Kauffmann, G. Polidori
Under transient and non-uniform conditions, providing thermal comfort to frail people has become an important research topic. This experimental study aims to analyze the thermal comfort of frail people using a clothed manikin. Thermal sensation and dynamic thermal sensation in a non-uniform thermal environment are also analyzed. During the tests, the air temperature increased from 18°C to 30°C in a controlled test chamber; skin temperatures, core temperatures, and thermal responses were then collected every 30 seconds. The analysis showed a significant difference in terms of thermal sensation and comfort between males and females over time, while there was no significant difference for the dynamic thermal sensation under test conditions. The results also confirmed that the sensation neutral temperature occurs at around 27°C.
{"title":"Experimental Investigation on the Thermal Comfort of the Frail People in a Sitting Posture Under Transient and Non-Uniform Thermal Environments","authors":"Zoubayre El akili, Y. Bouzidi, A. Merabtine, Julien Kauffmann, G. Polidori","doi":"10.1109/IREC52758.2021.9624904","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624904","url":null,"abstract":"Under transient and non-uniform conditions, providing thermal comfort to frail people has become an important research topic. This experimental study aims to analyze the thermal comfort of frail people using a clothed manikin. Thermal sensation and dynamic thermal sensation in a non-uniform thermal environment are also analyzed. During the tests, the air temperature increased from 18°C to 30°C in a controlled test chamber; skin temperatures, core temperatures, and thermal responses were then collected every 30 seconds. The analysis showed a significant difference in terms of thermal sensation and comfort between males and females over time, while there was no significant difference for the dynamic thermal sensation under test conditions. The results also confirmed that the sensation neutral temperature occurs at around 27°C.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130823113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 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.
{"title":"Methane reforming reactions for hydrogen production using hydrotalcite precursors and nanofibers based catalysts","authors":"T. Silva, M. Chaghouri, L. Tidahy, C. Gennequin, E. Abi-aad, M. Cesario, D. Macedo","doi":"10.1109/IREC52758.2021.9624897","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624897","url":null,"abstract":"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.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129759027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624764
Maher Soyah
In integrated and sustainable power systems, renewable energies (RE) required to satisfy the electricity demand would be generated in countries or areas with high resources, and exported to other ones. These RE productions and exchanges occur on a 24/7 basis for dozens of power systems at a time and, thus, constitute a high amount of data. Analyzing this big data and extracting out useful information require computing tools.In this work, we present a calculation model that determines power exchanges paths between areas of an integrated and sustainable power system. This would serve for many applications such as tracking power transactions, detecting grid anomalies or estimating energy costs.The model is based on the mathematical concept of topological sort. The implemented algorithm is applied to a test system and results are then exposed and discussed.
{"title":"Exchanged electricity paths calculation in integrated and sustainable power systems using topological sort","authors":"Maher Soyah","doi":"10.1109/IREC52758.2021.9624764","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624764","url":null,"abstract":"In integrated and sustainable power systems, renewable energies (RE) required to satisfy the electricity demand would be generated in countries or areas with high resources, and exported to other ones. These RE productions and exchanges occur on a 24/7 basis for dozens of power systems at a time and, thus, constitute a high amount of data. Analyzing this big data and extracting out useful information require computing tools.In this work, we present a calculation model that determines power exchanges paths between areas of an integrated and sustainable power system. This would serve for many applications such as tracking power transactions, detecting grid anomalies or estimating energy costs.The model is based on the mathematical concept of topological sort. The implemented algorithm is applied to a test system and results are then exposed and discussed.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130824080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624802
I. Bahloul, M. Bouzid, S. K. El Khil
A new study based on the negative sequence voltage (NSV) method to detect and diagnosis an incipient interturn short-circuit (ITSC) fault of a closed-loop controlled permanent magnet synchronous generator is proposed. The strategy is based on the use of the amplitude and the phase angle of the NSV to detect and diagnosis an inter-turn short circuit fault with the impact of closed loop control system.This paper presents the behavior of the fault on the different variables of the machine. Therefore, the amplitude of the NSV can be considered as an indicator to detect the appearance of ITSC fault while the phase angle of the NSV can be considered as a robust indicator to locate the faulty phase.
{"title":"Interturn Short-circuit Fault Diagnosis of a Closed-loop Controlled PMSG based Wind Turbine System","authors":"I. Bahloul, M. Bouzid, S. K. El Khil","doi":"10.1109/IREC52758.2021.9624802","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624802","url":null,"abstract":"A new study based on the negative sequence voltage (NSV) method to detect and diagnosis an incipient interturn short-circuit (ITSC) fault of a closed-loop controlled permanent magnet synchronous generator is proposed. The strategy is based on the use of the amplitude and the phase angle of the NSV to detect and diagnosis an inter-turn short circuit fault with the impact of closed loop control system.This paper presents the behavior of the fault on the different variables of the machine. Therefore, the amplitude of the NSV can be considered as an indicator to detect the appearance of ITSC fault while the phase angle of the NSV can be considered as a robust indicator to locate the faulty phase.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128080070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 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.
{"title":"Smart Battery Management System for Integrated PV, Microinverter and Energy Storage","authors":"Sahin Gullu, Justin R. Phelps, I. Batarseh, Khalil Alluhaybi, M. Salameh, S. Al-Hallaj","doi":"10.1109/IREC52758.2021.9624748","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624748","url":null,"abstract":"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.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114189336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624822
Yamina Jouili, Mouna. Ahlem. Ben Youssef, Ben Hamed, L. Sbita
This work is a proposal of the fuel cell stack for brushless dc motor such as Polymer Electrolyte Membrane Fuel Cells (PEMFC). In order, to improve the performance of PEM fuel cells under inputs variation, an efficient algorithm (Perturb and Observe) of the maximum power point tracking is applied to high step-up converter. This converter is used to boost the voltage level of PEMFC stack. Moreover, the commutation techniques based on Hall Effect sensors of BLDC motor drive is implemented. This system is simulated by Matlab/Simulink and the obtained results show the behavior of PEMFC stack and brushless dc motor.
{"title":"Brushless DC motor fed by PEM fuel cell stack for mini UAV's","authors":"Yamina Jouili, Mouna. Ahlem. Ben Youssef, Ben Hamed, L. Sbita","doi":"10.1109/IREC52758.2021.9624822","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624822","url":null,"abstract":"This work is a proposal of the fuel cell stack for brushless dc motor such as Polymer Electrolyte Membrane Fuel Cells (PEMFC). In order, to improve the performance of PEM fuel cells under inputs variation, an efficient algorithm (Perturb and Observe) of the maximum power point tracking is applied to high step-up converter. This converter is used to boost the voltage level of PEMFC stack. Moreover, the commutation techniques based on Hall Effect sensors of BLDC motor drive is implemented. This system is simulated by Matlab/Simulink and the obtained results show the behavior of PEMFC stack and brushless dc motor.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121168803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624860
Arwa Ben Farhat, C. Adnene
This paper is based on the state of the art of smart grid; it specifies the definition and the characteristic of the smart grids by focusing on the infrastructure responsible for the expansion and the implementation of the Smart grids. We present in this paper, the emergence of the centralized architecture to the decentralized one with distributed production and bidirectional communication between producers and consumers. This paper invokes the problematic of the Smart grid and present the used model and methods based on Artificial neural network for the load forecasting in order to limit the problematic of the Smart metering in Smart grids.
{"title":"The use of ANN for the load forecasting of the end-users in the smart grid","authors":"Arwa Ben Farhat, C. Adnene","doi":"10.1109/IREC52758.2021.9624860","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624860","url":null,"abstract":"This paper is based on the state of the art of smart grid; it specifies the definition and the characteristic of the smart grids by focusing on the infrastructure responsible for the expansion and the implementation of the Smart grids. We present in this paper, the emergence of the centralized architecture to the decentralized one with distributed production and bidirectional communication between producers and consumers. This paper invokes the problematic of the Smart grid and present the used model and methods based on Artificial neural network for the load forecasting in order to limit the problematic of the Smart metering in Smart grids.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116131580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624779
A. Sabaawi, Qusai H. Sultan, M. S. Salim
currently, significant efforts are being paid on the power management strategies for wireless devices. This leads to exploit the electromagnetic waves that are exist in the ambient environment for battery charging. In this paper, the design of a multi band fractal loop antenna for energy harvesting applications is presented. The proposed antenna has compact dimensions and designed to harvest energy from RF base stations of various mobile networks such as GSM, LTE and the future 5G networks. The resonant frequencies for the proposed antenna is within the range of 900 MHz to 5 GHz. CST Studio Suite software is used to simulate the proposed fractal antenna including the characteristics of S-parameters, gain, and radiation pattern. Simulation results showed that the return loss at resonant frequencies goes below -10 dB, which satisfies the requirements of energy harvesting techniques.
目前，人们在无线设备的电源管理策略上付出了巨大的努力。这导致利用存在于周围环境中的电磁波为电池充电。本文介绍了一种用于能量采集的多波段分形环形天线的设计。该天线尺寸紧凑，旨在从GSM、LTE和未来5G网络等各种移动网络的RF基站收集能量。该天线的谐振频率范围为900 MHz至5 GHz。利用CST Studio Suite软件对所提出的分形天线进行了模拟，包括s参数、增益和辐射方向图的特性。仿真结果表明，谐振频率下的回波损耗在-10 dB以下，满足能量收集技术的要求。
{"title":"Design of Multiband Fractal Antenna for Energy Harvesting Applications","authors":"A. Sabaawi, Qusai H. Sultan, M. S. Salim","doi":"10.1109/IREC52758.2021.9624779","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624779","url":null,"abstract":"currently, significant efforts are being paid on the power management strategies for wireless devices. This leads to exploit the electromagnetic waves that are exist in the ambient environment for battery charging. In this paper, the design of a multi band fractal loop antenna for energy harvesting applications is presented. The proposed antenna has compact dimensions and designed to harvest energy from RF base stations of various mobile networks such as GSM, LTE and the future 5G networks. The resonant frequencies for the proposed antenna is within the range of 900 MHz to 5 GHz. CST Studio Suite software is used to simulate the proposed fractal antenna including the characteristics of S-parameters, gain, and radiation pattern. Simulation results showed that the return loss at resonant frequencies goes below -10 dB, which satisfies the requirements of energy harvesting techniques.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114580525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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