Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624851
Nasiru B. Kadandani, M. Dahidah, S. Ethni
Grid operators and wind farm vendors often employs multiple circuitries including but not limited to line frequency transformer (LFT), static synchronous compensator (STATCOM) and power factor correction (PFC) devices for grid integration of wind farms. Such components are usually heavy, noisy and causes greenhouse effect. The bulky power transformers for both STATCOM and the wind farm generator hinders this configuration from applications where volume and weight are issues. As such, STATCOM-interfaced wind farm cannot be sited where size, weight, compactness, cable solution, multiport capability and environmental friendliness are critical. This paper demonstrate how solid state transformer (SST) replaces the STATCOM, the bulky transformers, and the additional reactive power compensation devices in grid integration of wind farms thereby providing smaller footprint, compactness and high performance. It is concluded that, SST-interfaced wind farms can be sited anywhere because of the reduced size, weight, compactness, cable solution, multiport capability and environmental friendliness.
{"title":"An Overview of the Role of Solid State Transformer in Grid Connected Wind Farms","authors":"Nasiru B. Kadandani, M. Dahidah, S. Ethni","doi":"10.1109/IREC52758.2021.9624851","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624851","url":null,"abstract":"Grid operators and wind farm vendors often employs multiple circuitries including but not limited to line frequency transformer (LFT), static synchronous compensator (STATCOM) and power factor correction (PFC) devices for grid integration of wind farms. Such components are usually heavy, noisy and causes greenhouse effect. The bulky power transformers for both STATCOM and the wind farm generator hinders this configuration from applications where volume and weight are issues. As such, STATCOM-interfaced wind farm cannot be sited where size, weight, compactness, cable solution, multiport capability and environmental friendliness are critical. This paper demonstrate how solid state transformer (SST) replaces the STATCOM, the bulky transformers, and the additional reactive power compensation devices in grid integration of wind farms thereby providing smaller footprint, compactness and high performance. It is concluded that, SST-interfaced wind farms can be sited anywhere because of the reduced size, weight, compactness, cable solution, multiport capability and environmental friendliness.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"86 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":"130768264","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/IREC52758.2021.9624829
Wahib Andari, S. Ghozzi, M. Ben Yahia, H. Allagui, A. Mami
This paper proposes an energy management strategy for an electrical hybrid vehicle which is composed of a Proton exchange membrane (PEM) fuel cell and a supercapacitor storage device. In this paper, the mathematical model for the proposed driving chain, comprising the PEM Fuel Cell, boost converter, inverter and vehicular structure, was modeled in MATLAB/Simulink. The proposed algorithm is evaluated for the Highway Fuel Economy Test (HWFET) driving cycle. The obtained results demonstrate the effectiveness of the proposed energy management strategy in reduction of the hydrogen consumption
{"title":"Supervisory control design for a PEM fuel cell electric vehicle","authors":"Wahib Andari, S. Ghozzi, M. Ben Yahia, H. Allagui, A. Mami","doi":"10.1109/IREC52758.2021.9624829","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624829","url":null,"abstract":"This paper proposes an energy management strategy for an electrical hybrid vehicle which is composed of a Proton exchange membrane (PEM) fuel cell and a supercapacitor storage device. In this paper, the mathematical model for the proposed driving chain, comprising the PEM Fuel Cell, boost converter, inverter and vehicular structure, was modeled in MATLAB/Simulink. The proposed algorithm is evaluated for the Highway Fuel Economy Test (HWFET) driving cycle. The obtained results demonstrate the effectiveness of the proposed energy management strategy in reduction of the hydrogen consumption","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"36 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":"132653531","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/IREC52758.2021.9624859
Youssef Drira, L. Ammar, N. Fakhfakh, S. Jribi, H. Bentaher, A. Maalej, Ilyes Benhassine
The spread of parabolic trough collector (PTC) in developing countries is rare due to its high manufacturing technique, special materials for building this system and its high cost. Several researchers suggested different alternatives for concentrated solar thermal and power systems. Among the various PTC alternatives, Semi-Parabolic Linear Fresnel Reflector (SPLFR) is considered a promising design to tackle the issue of manufacturing float glass mirrors in developing countries. In this study, an optical investigation was performed for different parameters of the SPLFR. With fixed strip mirrors widths of 45 mm, the heat flux was less affected by optical errors for a rim angle of 100°. Coupling errors have resulted in a compensation effect from which it was deduced that a control for non-random errors should be carried out for a better flux distribution. A displacement error of 6.2 mm with an offset angle of 45° has enhanced the optical efficiency for collecting rays diverged by the tracking error, thus an efficiency of 79% could be reached. This study also shows preliminary experimental results of a locally constructed SPLFR system.
{"title":"Error Optimization of Semi-Parabolic Linear Fresnel Reflector","authors":"Youssef Drira, L. Ammar, N. Fakhfakh, S. Jribi, H. Bentaher, A. Maalej, Ilyes Benhassine","doi":"10.1109/IREC52758.2021.9624859","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624859","url":null,"abstract":"The spread of parabolic trough collector (PTC) in developing countries is rare due to its high manufacturing technique, special materials for building this system and its high cost. Several researchers suggested different alternatives for concentrated solar thermal and power systems. Among the various PTC alternatives, Semi-Parabolic Linear Fresnel Reflector (SPLFR) is considered a promising design to tackle the issue of manufacturing float glass mirrors in developing countries. In this study, an optical investigation was performed for different parameters of the SPLFR. With fixed strip mirrors widths of 45 mm, the heat flux was less affected by optical errors for a rim angle of 100°. Coupling errors have resulted in a compensation effect from which it was deduced that a control for non-random errors should be carried out for a better flux distribution. A displacement error of 6.2 mm with an offset angle of 45° has enhanced the optical efficiency for collecting rays diverged by the tracking error, thus an efficiency of 79% could be reached. This study also shows preliminary experimental results of a locally constructed SPLFR system.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"260 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":"133619405","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/IREC52758.2021.9624883
Mohamed Akram Besserour, Sonia Eloued, Jaleleddine Ben Hadj Slama, F. Fouquet, M. Kadi
Global resource constraints and climate change have led to rethink about the use of the combustion engine in traditional transport systems. As a result, automotive manufacturers and equipment suppliers are moving towards hybrid vehicles. This change is leading electronics designers to use Gallium Nitride (GaN) technology within power modules. The use of this new technology may call into question the reliability of the system, which is directly related to the device aging. Among factors that can influence component aging is temperature. This paper describes the internal structure of a chosen device which is presented in LGA (Land Grid Array) package in order to create a thermal model through a finite element study that aims at extracting an electrothermal model describing the real component behavior within power module.
{"title":"Thermal Modelling for an Electrothermal Model of GaN Devices","authors":"Mohamed Akram Besserour, Sonia Eloued, Jaleleddine Ben Hadj Slama, F. Fouquet, M. Kadi","doi":"10.1109/IREC52758.2021.9624883","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624883","url":null,"abstract":"Global resource constraints and climate change have led to rethink about the use of the combustion engine in traditional transport systems. As a result, automotive manufacturers and equipment suppliers are moving towards hybrid vehicles. This change is leading electronics designers to use Gallium Nitride (GaN) technology within power modules. The use of this new technology may call into question the reliability of the system, which is directly related to the device aging. Among factors that can influence component aging is temperature. This paper describes the internal structure of a chosen device which is presented in LGA (Land Grid Array) package in order to create a thermal model through a finite element study that aims at extracting an electrothermal model describing the real component behavior within power module.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"98 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":"122805574","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/IREC52758.2021.9624894
Arij Nasfia Hayder, L. Saidi
This paper deal with the application of neural networks (NN) for power systems failures prognosis. The NN-based prediction method is called long-term prediction, where predicted degradations are used to predict the degradation at a further future time. The proposed method predicts degradation accurately with very small uncertainty
{"title":"Applications of Artificial Neural Networks With Input and output Degradation data for Renewable Energy Systems Fault Prognosis","authors":"Arij Nasfia Hayder, L. Saidi","doi":"10.1109/IREC52758.2021.9624894","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624894","url":null,"abstract":"This paper deal with the application of neural networks (NN) for power systems failures prognosis. The NN-based prediction method is called long-term prediction, where predicted degradations are used to predict the degradation at a further future time. The proposed method predicts degradation accurately with very small uncertainty","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"2015 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":"127781726","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/IREC52758.2021.9624896
Badreddine Khelifi, M. A. Zdiri, Fatma Ben Salem
Machine learning (ML) is increasingly touching all fields in our life and making huge impact on their improvement. In this paper, we present an overview of several used methods in ML to highlight their interest and the future trends. The paper gives a short tour on their use in Power system applications. Then, we focus on their use in solar PV systems for both energy generation and MPPT implementation. We expect to bring an insight to the latest progress in machine learning methods within power and energy systems in general and solar PV systems in particular.
{"title":"Machine Learning for Solar Power Systems-A short tour","authors":"Badreddine Khelifi, M. A. Zdiri, Fatma Ben Salem","doi":"10.1109/IREC52758.2021.9624896","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624896","url":null,"abstract":"Machine learning (ML) is increasingly touching all fields in our life and making huge impact on their improvement. In this paper, we present an overview of several used methods in ML to highlight their interest and the future trends. The paper gives a short tour on their use in Power system applications. Then, we focus on their use in solar PV systems for both energy generation and MPPT implementation. We expect to bring an insight to the latest progress in machine learning methods within power and energy systems in general and solar PV systems in particular.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"233 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":"116324901","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/IREC52758.2021.9624925
A. Wazwaz, Mohd Shariq Khan
There are different conversions of Solar Energy into other useful types of energy. This research study concentrates on the solar-thermal conversion. The manufactured glazed-flat plate collector prototype made from used parts such as radiator of fridge, wood, plastic bottles, glass, pipes and metal sheet. Therefore, the economic aspect took into consideration in this study. The manufactured prototype serves all hot water domestic’ needs. The maximum hot water temperature obtained is 73.6°C. The average percent efficiency for the solar prototype obtained is 57.62%. The angle of inclination used is 43.4 degree. The approximate cost of solar glazed flat plate collector prototype is approximately 70 US $.
{"title":"Manufacturing of a glazed-flat plate collector prototype from used parts in Oman","authors":"A. Wazwaz, Mohd Shariq Khan","doi":"10.1109/IREC52758.2021.9624925","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624925","url":null,"abstract":"There are different conversions of Solar Energy into other useful types of energy. This research study concentrates on the solar-thermal conversion. The manufactured glazed-flat plate collector prototype made from used parts such as radiator of fridge, wood, plastic bottles, glass, pipes and metal sheet. Therefore, the economic aspect took into consideration in this study. The manufactured prototype serves all hot water domestic’ needs. The maximum hot water temperature obtained is 73.6°C. The average percent efficiency for the solar prototype obtained is 57.62%. The angle of inclination used is 43.4 degree. The approximate cost of solar glazed flat plate collector prototype is approximately 70 US $.","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":"134202053","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/IREC52758.2021.9624900
A. Abbassi, Rached Ben Mehrez, R. Abbassi
This paper presents an optimization based approach in order to achieve an acceptable Total Cost of Electricity (TCE). To reduce the TCE of the system which contains a PV/Wind sub-system and a battery, the conventional Genetic Algorithm (GA) based approach is used. The continuity of service requires the substitution of the production source overnight by the association of a lead-acid battery under the global system in order to control the output power by meeting the needs of consumers. By introducing the TCE as important factor, an economic evaluation is elaborated by presenting an acceptable cost of energy. The results obtained show a high level of economic feasibility by achieving a lowest TCE.
{"title":"Techno-Economic Evaluation of a Distributed Generation Based on Renewable Energy Sources","authors":"A. Abbassi, Rached Ben Mehrez, R. Abbassi","doi":"10.1109/IREC52758.2021.9624900","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624900","url":null,"abstract":"This paper presents an optimization based approach in order to achieve an acceptable Total Cost of Electricity (TCE). To reduce the TCE of the system which contains a PV/Wind sub-system and a battery, the conventional Genetic Algorithm (GA) based approach is used. The continuity of service requires the substitution of the production source overnight by the association of a lead-acid battery under the global system in order to control the output power by meeting the needs of consumers. By introducing the TCE as important factor, an economic evaluation is elaborated by presenting an acceptable cost of energy. The results obtained show a high level of economic feasibility by achieving a lowest TCE.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132782832","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/IREC52758.2021.9624923
S. Kraiem, Jaleleddine Ben Hadj Slama, M. Hamouda
In this paper, a comparative study between three chaotic carrier waveforms is carried out based on conducted Electromagnetic Interference (EMI). For this purpose, a High-Frequency (HF) model of single-phase transformerless grid-connected photovoltaic inverter topology is proposed and simulated using co-simulation technique between SPICE-based circuit software and MATLAB/ Simulink. The obtained results show that conducted emission is almost the same with sawtooth, triangular and inverse sawtooth carriers. Moreover, the performance in terms total harmonic distortion of the modulated output voltage is investigated to emphasize the importance of appropriate parameter selection of chaotic algorithms.
{"title":"Chaotic Modulation Technique for Grid-Connected Inverter","authors":"S. Kraiem, Jaleleddine Ben Hadj Slama, M. Hamouda","doi":"10.1109/IREC52758.2021.9624923","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624923","url":null,"abstract":"In this paper, a comparative study between three chaotic carrier waveforms is carried out based on conducted Electromagnetic Interference (EMI). For this purpose, a High-Frequency (HF) model of single-phase transformerless grid-connected photovoltaic inverter topology is proposed and simulated using co-simulation technique between SPICE-based circuit software and MATLAB/ Simulink. The obtained results show that conducted emission is almost the same with sawtooth, triangular and inverse sawtooth carriers. Moreover, the performance in terms total harmonic distortion of the modulated output voltage is investigated to emphasize the importance of appropriate parameter selection of chaotic algorithms.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"109 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":"124849871","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/IREC52758.2021.9624812
S. Kraiem, J. Ben Hadj Slama, M. Hamouda
Transformerless grid-tied inverters are nowadays widely used in renewable energy conversion. In this framework, this paper aims to reduce electromagnetic interferences (EMI) emitted by the oH5 inverter as one of the new Transformerless photovoltaic (PV) topologies. Thereafter, the proposed method consists to discuss the layout techniques and circuit design to reduce the parasitic inductances and to deal with the EMI issues. Furthermore, simulation and experimental results are carried out to emphasize the effectiveness of the proposal.
{"title":"Conducted EMI Reduction in Transformerless PV Grid-Connected Inverter Based on PCB Improvement","authors":"S. Kraiem, J. Ben Hadj Slama, M. Hamouda","doi":"10.1109/IREC52758.2021.9624812","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624812","url":null,"abstract":"Transformerless grid-tied inverters are nowadays widely used in renewable energy conversion. In this framework, this paper aims to reduce electromagnetic interferences (EMI) emitted by the oH5 inverter as one of the new Transformerless photovoltaic (PV) topologies. Thereafter, the proposed method consists to discuss the layout techniques and circuit design to reduce the parasitic inductances and to deal with the EMI issues. Furthermore, simulation and experimental results are carried out to emphasize the effectiveness of the proposal.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":"389 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":"123527836","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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