Pub Date : 2021-10-26DOI: 10.1109/IREC52758.2021.9624771
Hella Adouni, Yoldoss Chouari, W. Kriaa, H. Bournot
Harmful incidents can occur in sewer systems: flooding, sewer overload, geyser phenomenon, etc. These failures occur during intense rainfall events when the flow of wastewater mixed with rainwater overloads the sewer system. The initial objective of the current study is to better understand the flow pattern within the sewer system and then to propose a solution to the flooding phenomena. To this end, we developed a numerical model capable of simulating air-water flow in a confined channel using ANSYS Fluent software. The results showed that the model predicts the flow pattern inside the channels well. In addition, a comparison between a transient simulation on an initially moving air-water flow and a simulation on a resting air-water flow was performed to show the importance of a proper ventilation system in flood prevention.
{"title":"The importance of ventilation of sewer systems to avoid air entrapment","authors":"Hella Adouni, Yoldoss Chouari, W. Kriaa, H. Bournot","doi":"10.1109/IREC52758.2021.9624771","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624771","url":null,"abstract":"Harmful incidents can occur in sewer systems: flooding, sewer overload, geyser phenomenon, etc. These failures occur during intense rainfall events when the flow of wastewater mixed with rainwater overloads the sewer system. The initial objective of the current study is to better understand the flow pattern within the sewer system and then to propose a solution to the flooding phenomena. To this end, we developed a numerical model capable of simulating air-water flow in a confined channel using ANSYS Fluent software. The results showed that the model predicts the flow pattern inside the channels well. In addition, a comparison between a transient simulation on an initially moving air-water flow and a simulation on a resting air-water flow was performed to show the importance of a proper ventilation system in flood prevention.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125064560","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/IREC52758.2021.9624934
Mohamed Abdeen, Asmaa Emran, Aya Moustafa, Dina Kamal, R. Hassan, Eatemad Hassan, Fahema Ahmed, M. Mahmoud, S. Kamel, F. Jurado
The most common method to increase the transmittable power is to insert a fixed series capacitor into a transmission line. But unfortunately, it was noted that the system stability is inversely proportional to the compensation level. This phenomenon is called a sub-synchronous resonance (SSR). SSR has a detrimental influence on the system's safety and stability. Thyristor controlled series capacitor (TCSC) is one of the most methods used for damping SSR and improving system stability. In this paper, appropriate values of TCSC parameters are identified. The ratio of TCSC inductive reactance to the TCSC capacitive reactance, TCSC impedance characteristic, the ratio of the TCSC capacitive reactance to the capacitive reactance of the fixed series capacitor, and different synchronization signals are studied. Additionally, the TCSC constant power control based on the P and PI controllers are compared. In order to analyze the SSR phenomenon in a doubly fed induction generator (DFIG)-based wind farm connected to TCSC, IEEE first benchmark model (FBM) is modified. MATLAB software is utilized to demonstrate the results.
{"title":"Investigation on TCSC Parameters and Control Structure for SSR Damping in DFIG-Based Wind Farm","authors":"Mohamed Abdeen, Asmaa Emran, Aya Moustafa, Dina Kamal, R. Hassan, Eatemad Hassan, Fahema Ahmed, M. Mahmoud, S. Kamel, F. Jurado","doi":"10.1109/IREC52758.2021.9624934","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624934","url":null,"abstract":"The most common method to increase the transmittable power is to insert a fixed series capacitor into a transmission line. But unfortunately, it was noted that the system stability is inversely proportional to the compensation level. This phenomenon is called a sub-synchronous resonance (SSR). SSR has a detrimental influence on the system's safety and stability. Thyristor controlled series capacitor (TCSC) is one of the most methods used for damping SSR and improving system stability. In this paper, appropriate values of TCSC parameters are identified. The ratio of TCSC inductive reactance to the TCSC capacitive reactance, TCSC impedance characteristic, the ratio of the TCSC capacitive reactance to the capacitive reactance of the fixed series capacitor, and different synchronization signals are studied. Additionally, the TCSC constant power control based on the P and PI controllers are compared. In order to analyze the SSR phenomenon in a doubly fed induction generator (DFIG)-based wind farm connected to TCSC, IEEE first benchmark model (FBM) is modified. MATLAB software is utilized to demonstrate the results.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128263763","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/IREC52758.2021.9624815
Sagarika Kumar, Abrar Al Moosawi, Ali Almheiri, Ahmad Alheloo, Yogesh S Kumar, Prashanth G Shivananjappa, J. John, G. Mathiak, V. Alberts
Solar photovoltaic (PV) module reliability against defects and degradations is a key concern these days, owing to the large-scale deployment of modules around the world. For early detection of pre-mature failures, indoor accelerated testing is performed according to the different International Electrotechnical Commission (IEC) standards. Herein, multiple characterization tools are used for detection and analysis of defects and degradation observed under such tests. Visual inspection forms the primary and standard form of defect detection after these test procedures. However, there is absence of a single fixed, ready-to use source of guideline for such inspections. Also, there is less emphasis on the microscopic inspection, and in-depth detailing of cell and module components and defects. This paper presents detailed guidelines for macroscopic and microscopic reporting of cell and module information, with component wise defect details pre- and post-testing. This list would be useful for module record keeping and will facilitate recording of information which would be useful for further reliability analysis.
{"title":"Development of macroscopic and microscopic visual inspection guidelines for crystalline silicon photovoltaic modules under indoor accelerated testing","authors":"Sagarika Kumar, Abrar Al Moosawi, Ali Almheiri, Ahmad Alheloo, Yogesh S Kumar, Prashanth G Shivananjappa, J. John, G. Mathiak, V. Alberts","doi":"10.1109/IREC52758.2021.9624815","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624815","url":null,"abstract":"Solar photovoltaic (PV) module reliability against defects and degradations is a key concern these days, owing to the large-scale deployment of modules around the world. For early detection of pre-mature failures, indoor accelerated testing is performed according to the different International Electrotechnical Commission (IEC) standards. Herein, multiple characterization tools are used for detection and analysis of defects and degradation observed under such tests. Visual inspection forms the primary and standard form of defect detection after these test procedures. However, there is absence of a single fixed, ready-to use source of guideline for such inspections. Also, there is less emphasis on the microscopic inspection, and in-depth detailing of cell and module components and defects. This paper presents detailed guidelines for macroscopic and microscopic reporting of cell and module information, with component wise defect details pre- and post-testing. This list would be useful for module record keeping and will facilitate recording of information which would be useful for further reliability analysis.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124488957","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/IREC52758.2021.9624735
A. Abbassi, Rached Ben Mehrez, R. Abbassi
This paper presents a dynamic behavior of a Lead-Acid battery in order to achieve an accurate modeling which can be used for estimating the State Of Charge (SOC). On the basis of the high integration of the energy source for a variety of application, an experimental test- bench is developed and presented which contributes to well achieve a more comprehensive write-up of the studied problem. Then, based on Luenberger estimator, the SOC of the studied battery is well demonstrated in accordance with their real data. Taking into account the impact of the association of the battery under the global system in order to control the output power by meeting the needs of consumers, the dynamic behavior of the battery model is tested. Obtained results show a high level of accordance in terms of voltage and SOC of the battery with the lowest error value.
{"title":"Dynamic Behavior of a Lead-Acid Battery based on State of Charge Estimation","authors":"A. Abbassi, Rached Ben Mehrez, R. Abbassi","doi":"10.1109/IREC52758.2021.9624735","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624735","url":null,"abstract":"This paper presents a dynamic behavior of a Lead-Acid battery in order to achieve an accurate modeling which can be used for estimating the State Of Charge (SOC). On the basis of the high integration of the energy source for a variety of application, an experimental test- bench is developed and presented which contributes to well achieve a more comprehensive write-up of the studied problem. Then, based on Luenberger estimator, the SOC of the studied battery is well demonstrated in accordance with their real data. Taking into account the impact of the association of the battery under the global system in order to control the output power by meeting the needs of consumers, the dynamic behavior of the battery model is tested. Obtained results show a high level of accordance in terms of voltage and SOC of the battery with the lowest error value.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134005818","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/IREC52758.2021.9624801
B. A. Fadheel, Noor Izzri Abdul Wahab, A. Mahdi, Mohd Amran Bin Mohd Radzi, A. Che Soh
Estimation of virtual inertia in grid-connected renewable energy resources is the primary challenge faced by researchers in the field of load frequency control in the modern power system. The main objective of this study is to review the strategies of virtual inertia, which are used to compensate for the required inertia to reduce frequency deviation. The stability issue regarding virtual inertia estimators integrated with power system is also a challenge, which is reviewed in this study. A modified power system based on an inertia estimator with a compensator is suggested using the modified techniques presented in recent manuscripts. The most published manuscripts in the field of the following scenarios: (i) load frequency control with renewable energy resources and (ii) load frequency control with virtual inertia are statistically analyzed and the high cited manuscripts related to these research gaps are discussed in detail. The new direction of this review study is suggested to continue improving the virtual inertia estimators by authors.
{"title":"Review of the Virtual Inertia Strategies from Intermittent Renewable Energy Resources on the Power System","authors":"B. A. Fadheel, Noor Izzri Abdul Wahab, A. Mahdi, Mohd Amran Bin Mohd Radzi, A. Che Soh","doi":"10.1109/IREC52758.2021.9624801","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624801","url":null,"abstract":"Estimation of virtual inertia in grid-connected renewable energy resources is the primary challenge faced by researchers in the field of load frequency control in the modern power system. The main objective of this study is to review the strategies of virtual inertia, which are used to compensate for the required inertia to reduce frequency deviation. The stability issue regarding virtual inertia estimators integrated with power system is also a challenge, which is reviewed in this study. A modified power system based on an inertia estimator with a compensator is suggested using the modified techniques presented in recent manuscripts. The most published manuscripts in the field of the following scenarios: (i) load frequency control with renewable energy resources and (ii) load frequency control with virtual inertia are statistically analyzed and the high cited manuscripts related to these research gaps are discussed in detail. The new direction of this review study is suggested to continue improving the virtual inertia estimators by authors.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134504078","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/IREC52758.2021.9624899
Mustafa M. Atiyah, K. Al-Anbarri, A. Mahdi
A modified strategy by multi-objective grey wolf optimizer is implemented for improving the dynamic performance of a wind power system. The proposed wind power system includes a permanent magnet synchronous generator mechanically coupled with a wind turbine to inject active power to grid via power electronic converters. The controller parameters of the generator side and grid side are optimally tuned to stabilize wind generation under the variations of wind speeds and load. The performance index (to be minimized) is the integral time square error of the PI regulators. Simulation results reveal that PI based grey wolf optimizer is faster and more efficient compared with the traditional PI regulator.
{"title":"Optimum Dynamic Performance of Wind Power System Using Multi-Objective Grey Wolf Optimizer","authors":"Mustafa M. Atiyah, K. Al-Anbarri, A. Mahdi","doi":"10.1109/IREC52758.2021.9624899","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624899","url":null,"abstract":"A modified strategy by multi-objective grey wolf optimizer is implemented for improving the dynamic performance of a wind power system. The proposed wind power system includes a permanent magnet synchronous generator mechanically coupled with a wind turbine to inject active power to grid via power electronic converters. The controller parameters of the generator side and grid side are optimally tuned to stabilize wind generation under the variations of wind speeds and load. The performance index (to be minimized) is the integral time square error of the PI regulators. Simulation results reveal that PI based grey wolf optimizer is faster and more efficient compared with the traditional PI regulator.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127834040","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/IREC52758.2021.9624770
M. Keddar, M. Doumbia, K. Belmokhtar, M. D. Krachai
In this paper, a hierarchical distributed controller is implemented in an AC islanded microgrid (MG). For the primary controller, a droop control method is used to share the load active and reactive power between the distributed generators (DGs). However, the reactive power can’t be shared accurately due to the line impedance mismatch. Thus, adaptive virtual impedance based on a consensus algorithm is employed in the secondary controller. The consensus algorithm is used to estimate the impedance mismatch then, the virtual impedance is adjusted to eliminate this mismatch. To verify the effectiveness of the proposed approach MATLAB/Simulink is used to conduct simulations, then an experimental test bench composed of two DGs is developed to validate the simulation results in achieving accurate load power-sharing.
{"title":"Experimental Validation of an Accurate Reactive Power-Sharing Approach Based on Adaptive Virtual Impedance and Consensus Control","authors":"M. Keddar, M. Doumbia, K. Belmokhtar, M. D. Krachai","doi":"10.1109/IREC52758.2021.9624770","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624770","url":null,"abstract":"In this paper, a hierarchical distributed controller is implemented in an AC islanded microgrid (MG). For the primary controller, a droop control method is used to share the load active and reactive power between the distributed generators (DGs). However, the reactive power can’t be shared accurately due to the line impedance mismatch. Thus, adaptive virtual impedance based on a consensus algorithm is employed in the secondary controller. The consensus algorithm is used to estimate the impedance mismatch then, the virtual impedance is adjusted to eliminate this mismatch. To verify the effectiveness of the proposed approach MATLAB/Simulink is used to conduct simulations, then an experimental test bench composed of two DGs is developed to validate the simulation results in achieving accurate load power-sharing.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129624954","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/IREC52758.2021.9624768
Sofien Ghodbani, Mouna Ben Hamed, L. Sbita
The growing demand for electric power around the world has led to an increased consumption of fossil fuels (oil, coal and gas). The impact these energies on the environment has led modern societies to seek sustainable alternatives to meet industrial and industrial needs and requirements ever-increasing daily life. This approach has led to the implementation of renewable energy sources.More and more countries are being made aware of the essential nature of the advance of renewable energy in the fight against climate change and of increasing access to energy for the benefit of populations still deprived of any modern energy service.Wind energy is one of the forms of renewable energy; it takes its name from Eole, the name given to the god of the wind in ancient Greece. It is an energy that is directly drawn from the wind using a wind turbine device. The development and exploitation of wind energy has increased in recent years, especially in countries.Wind energy is now attracting the interest of several research teams. These systems that produce electrical energy from the wind can be a technological and economic alternative to the various sources of harmful energy exhausting at the same time.The purpose of this work, we will study the direct vector control of the DFIG based on the orientation of the stator flux, used to make it work as a generator. The latter highlights the relationships between stator and rotor magnitudes. These relationships will make it possible to act on the rotor signals in order to control the exchange of active and reactive power between the stator of the machine and the network. We will simulate the whole overall system using MATLAB software
{"title":"Stator field control of DFIG for wind energy systems","authors":"Sofien Ghodbani, Mouna Ben Hamed, L. Sbita","doi":"10.1109/IREC52758.2021.9624768","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624768","url":null,"abstract":"The growing demand for electric power around the world has led to an increased consumption of fossil fuels (oil, coal and gas). The impact these energies on the environment has led modern societies to seek sustainable alternatives to meet industrial and industrial needs and requirements ever-increasing daily life. This approach has led to the implementation of renewable energy sources.More and more countries are being made aware of the essential nature of the advance of renewable energy in the fight against climate change and of increasing access to energy for the benefit of populations still deprived of any modern energy service.Wind energy is one of the forms of renewable energy; it takes its name from Eole, the name given to the god of the wind in ancient Greece. It is an energy that is directly drawn from the wind using a wind turbine device. The development and exploitation of wind energy has increased in recent years, especially in countries.Wind energy is now attracting the interest of several research teams. These systems that produce electrical energy from the wind can be a technological and economic alternative to the various sources of harmful energy exhausting at the same time.The purpose of this work, we will study the direct vector control of the DFIG based on the orientation of the stator flux, used to make it work as a generator. The latter highlights the relationships between stator and rotor magnitudes. These relationships will make it possible to act on the rotor signals in order to control the exchange of active and reactive power between the stator of the machine and the network. We will simulate the whole overall system using MATLAB software","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129971658","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/IREC52758.2021.9624915
Meriem Nouira, H. Sammouda
In this paper, we have highlighted the impact of Building Integrated PV systems (BIPV) and Building Integrated PV-Phase Change Material (BIPV-PCM) systems with the exterior envelope of the room on thermal comfort, under Tunisian climatic conditions. The objectives set in the first step were to improve and optimize the performance of photovoltaic panels integrated into the building wall using the passive regulation method by coupling them to a macro encapsulated phase change material. In the second step, our objectives were to highlight the impact of the integration of these systems on indoor thermal comfort and on building efficiency. It was revealed that a Building Integration of PV systems causes a significant increase in indoor air temperature. However, for the South direction, the addition of Phase Change Material plays an important role in reducing the heat transfer rate to the room. In fact, the maximum temperature of the south-facing wall has been reduced by around 2.2 ° C when attaching Phase Change Material layers behind the Building Integrated Photovoltaics systems. The average temperature of the vertical and inclined BIPV cells temperature, at midday, is reduced by about 3 °C and 25 °C, respectively, due to the integration of PCM at the back sides of the systems. It is concluded that coupling the Building Integrated Photovoltaic system with a layer of phase change material and integrating such system with the room envelope is an interesting solution to improve the performance of photovoltaic systems and to be closer to the thermal comfort of the individual simultaneously.
{"title":"Numerical study of Building Integrated Photovoltaic modules for Nearly Zero Energy Building Case Study: Tunis, Tunisia","authors":"Meriem Nouira, H. Sammouda","doi":"10.1109/IREC52758.2021.9624915","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624915","url":null,"abstract":"In this paper, we have highlighted the impact of Building Integrated PV systems (BIPV) and Building Integrated PV-Phase Change Material (BIPV-PCM) systems with the exterior envelope of the room on thermal comfort, under Tunisian climatic conditions. The objectives set in the first step were to improve and optimize the performance of photovoltaic panels integrated into the building wall using the passive regulation method by coupling them to a macro encapsulated phase change material. In the second step, our objectives were to highlight the impact of the integration of these systems on indoor thermal comfort and on building efficiency. It was revealed that a Building Integration of PV systems causes a significant increase in indoor air temperature. However, for the South direction, the addition of Phase Change Material plays an important role in reducing the heat transfer rate to the room. In fact, the maximum temperature of the south-facing wall has been reduced by around 2.2 ° C when attaching Phase Change Material layers behind the Building Integrated Photovoltaics systems. The average temperature of the vertical and inclined BIPV cells temperature, at midday, is reduced by about 3 °C and 25 °C, respectively, due to the integration of PCM at the back sides of the systems. It is concluded that coupling the Building Integrated Photovoltaic system with a layer of phase change material and integrating such system with the room envelope is an interesting solution to improve the performance of photovoltaic systems and to be closer to the thermal comfort of the individual simultaneously.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130889043","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/IREC52758.2021.9624831
Chawki Douzi, M. Kadi, J. Ben Hadj Slama
Studying the reliability and robustness of some components, in particular wide band gap (WBG) devices, under severe conditions such as short-circuits, is an important issue. Among this WBG is the SiC, which is presently one of the dominant power switching devices in renewable energy converters such as photovoltaic and automotive power electronic converters. This paper presents aging tests of SiC MOSFET from CREE subjected to repetitive short-circuit operations. The experimental tests are detailed. The evolution of the electrical static characterizations (drain current Id and gate-source voltage Vgs waves), before and after aging, is presented. Furthermore, the repetitive short-circuit aging effect on electrical parameters (threshold voltage Vth, on-state resistance Rdson and Igss gate and Idss drain leakage currents) is carried out.
研究某些器件，特别是宽带隙器件在短路等恶劣条件下的可靠性和鲁棒性是一个重要问题。其中，碳化硅是目前在光伏、汽车电力电子等可再生能源变换器中占主导地位的功率开关器件之一。本文介绍了CREE SiC MOSFET在重复短路操作下的老化试验。详细介绍了实验结果。给出了老化前后的静电特性(漏极电流Id和栅源电压Vgs波)的演变。此外，还研究了重复短路老化对电学参数(阈值电压Vth、导通电阻Rdson和Igss栅极以及Idss漏极泄漏电流)的影响。
{"title":"Evolution of Electrical Performance in First Generation of SiC MOSFET for Low Voltage Applications after Short-Circuit Aging Tests","authors":"Chawki Douzi, M. Kadi, J. Ben Hadj Slama","doi":"10.1109/IREC52758.2021.9624831","DOIUrl":"https://doi.org/10.1109/IREC52758.2021.9624831","url":null,"abstract":"Studying the reliability and robustness of some components, in particular wide band gap (WBG) devices, under severe conditions such as short-circuits, is an important issue. Among this WBG is the SiC, which is presently one of the dominant power switching devices in renewable energy converters such as photovoltaic and automotive power electronic converters. This paper presents aging tests of SiC MOSFET from CREE subjected to repetitive short-circuit operations. The experimental tests are detailed. The evolution of the electrical static characterizations (drain current Id and gate-source voltage Vgs waves), before and after aging, is presented. Furthermore, the repetitive short-circuit aging effect on electrical parameters (threshold voltage Vth, on-state resistance Rdson and Igss gate and Idss drain leakage currents) is carried out.","PeriodicalId":266552,"journal":{"name":"2021 12th International Renewable Energy Congress (IREC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126888675","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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