Pub Date : 2018-09-30DOI: 10.15866/irecon.v6i5.15919
G. Prodromidis, Evangelos Tsiaras, F. Coutelieris
{"title":"Autonomous Buildings with Electricity by Renewables","authors":"G. Prodromidis, Evangelos Tsiaras, F. Coutelieris","doi":"10.15866/irecon.v6i5.15919","DOIUrl":"https://doi.org/10.15866/irecon.v6i5.15919","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48208845","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 : 2018-07-31DOI: 10.15866/IRECON.V6I4.15253
H. Swalehe, V. Pius, B. Marungsri
Lightning is the principal source of disturbance in power system leading towards outages and damage of expensive equipment in the electrical power network. Induction of disastrous voltages across string insulators from the lightning that causes flashovers and back flashovers have been the major study in recent researches. Efficient parameterization of lightning and it is associated with behavior provides a significant knowledge towards successful operation of the electrical network. Therefore, this work studies the effects of flashover and back flashover affected by negative lightning (single and double) strokes in the operation of 69 kV sub-transmission line and 24kV distribution line of Metropolitan Electricity Authority, Thailand. Seven poles spanning 24 km were considered in this study. Lightning was initiated at the vertex of the fourth pole and mid-span of the third and fourth pole, and investigations were carried out by lightning magnitude and multiplicity when it hits an overhead ground wire (OHGW) and phase A of the 69 kV line by using ATPDraw. Results showed that negative lightning stroke of -34 kA and above could induce disastrous voltages across string insulators that leads to back flashover and flashover when hits at the top and mid-span of OHGW and phase conductor respectively. Power failure in 69 kV may cause double failure to the network since it is the main power source of 24 kV line. Consequently, a double failure may direct towards reduced reliability and extra maintenance cost of catastrophically damaged line insulators. Therefore, the concept of flashover and back-flashover can help to improve the lightning performance of MEA power lines.
{"title":"Flashover and Back-Flashover Analysis with Lightning Strokes of 69 kV and 24 kV Lines in Thailand Using ATP/EMTP","authors":"H. Swalehe, V. Pius, B. Marungsri","doi":"10.15866/IRECON.V6I4.15253","DOIUrl":"https://doi.org/10.15866/IRECON.V6I4.15253","url":null,"abstract":"Lightning is the principal source of disturbance in power system leading towards outages and damage of expensive equipment in the electrical power network. Induction of disastrous voltages across string insulators from the lightning that causes flashovers and back flashovers have been the major study in recent researches. Efficient parameterization of lightning and it is associated with behavior provides a significant knowledge towards successful operation of the electrical network. Therefore, this work studies the effects of flashover and back flashover affected by negative lightning (single and double) strokes in the operation of 69 kV sub-transmission line and 24kV distribution line of Metropolitan Electricity Authority, Thailand. Seven poles spanning 24 km were considered in this study. Lightning was initiated at the vertex of the fourth pole and mid-span of the third and fourth pole, and investigations were carried out by lightning magnitude and multiplicity when it hits an overhead ground wire (OHGW) and phase A of the 69 kV line by using ATPDraw. Results showed that negative lightning stroke of -34 kA and above could induce disastrous voltages across string insulators that leads to back flashover and flashover when hits at the top and mid-span of OHGW and phase conductor respectively. Power failure in 69 kV may cause double failure to the network since it is the main power source of 24 kV line. Consequently, a double failure may direct towards reduced reliability and extra maintenance cost of catastrophically damaged line insulators. Therefore, the concept of flashover and back-flashover can help to improve the lightning performance of MEA power lines.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42561362","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 : 2018-07-31DOI: 10.15866/IRECON.V6I4.15939
Merouan Belkasmi, K. Bouziane, M. Akherraz, Mensah K. Anaty, Mohamed El ouahabi, T. Sadiki, M. Faqir
Outdoor performance of a high concentrating photovoltaic (HCPV) system developed in this work has been investigated. In particular, the effect of three parameters namely wind speed, DNI and ambient temperature on the HCPV performance is explored. The tracking accuracy of the HCPV system is a crucial factor in the energy production related directly to the performance and closely depends on the acceptance angle of the HCPV module and the sun tracking control upon the abovementioned parameters. The acceptance angle of the HCPV module mounted on our HCPV system has been determined to be around 1.2°, deduced by studying the variation of the maximum pointing error from the solar source before the power drop. It is worth to mention that the HCPV system produces more than 94% of the excepted output power for a tracking error less than 1°. The tracking error in the range wind speed 6-8 m/s was found to reach an utmost deviation of 0.12° leading to 1% of power loss. Indeed, the outdoor tests of our HCPV prototype revealed variation of the maximum output power under different atmospheric conditions such as the ambient temperature and the direct normal irradiance (DNI). The maximum efficiency of the HCPV prototype has been determined around 23% according to a large range of DNI 0-850 W/m2. Taking into account the variation of the performance of our HCPV system versus the three parameters, The ASTM E2527 model has been implemented and its four coefficients have been determined to find the best accuracy of relationship between the three atmospheric parameters and maximum output power, simultaneously.
{"title":"Outdoor Performance Tests of a HCPV Prototype","authors":"Merouan Belkasmi, K. Bouziane, M. Akherraz, Mensah K. Anaty, Mohamed El ouahabi, T. Sadiki, M. Faqir","doi":"10.15866/IRECON.V6I4.15939","DOIUrl":"https://doi.org/10.15866/IRECON.V6I4.15939","url":null,"abstract":"Outdoor performance of a high concentrating photovoltaic (HCPV) system developed in this work has been investigated. In particular, the effect of three parameters namely wind speed, DNI and ambient temperature on the HCPV performance is explored. The tracking accuracy of the HCPV system is a crucial factor in the energy production related directly to the performance and closely depends on the acceptance angle of the HCPV module and the sun tracking control upon the abovementioned parameters. The acceptance angle of the HCPV module mounted on our HCPV system has been determined to be around 1.2°, deduced by studying the variation of the maximum pointing error from the solar source before the power drop. It is worth to mention that the HCPV system produces more than 94% of the excepted output power for a tracking error less than 1°. The tracking error in the range wind speed 6-8 m/s was found to reach an utmost deviation of 0.12° leading to 1% of power loss. Indeed, the outdoor tests of our HCPV prototype revealed variation of the maximum output power under different atmospheric conditions such as the ambient temperature and the direct normal irradiance (DNI). The maximum efficiency of the HCPV prototype has been determined around 23% according to a large range of DNI 0-850 W/m2. Taking into account the variation of the performance of our HCPV system versus the three parameters, The ASTM E2527 model has been implemented and its four coefficients have been determined to find the best accuracy of relationship between the three atmospheric parameters and maximum output power, simultaneously.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45777271","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 : 2018-07-31DOI: 10.15866/IRECON.V6I4.15744
Abdelhay Laabyech, S. Men-la-yakhaf, F. Kifani-Sahban, K. Gueraoui, I. Wahby
{"title":"Mathematical and Numerical Simulation for the Production of Biogas from Liquid Effluent of Paper Pulp Mill","authors":"Abdelhay Laabyech, S. Men-la-yakhaf, F. Kifani-Sahban, K. Gueraoui, I. Wahby","doi":"10.15866/IRECON.V6I4.15744","DOIUrl":"https://doi.org/10.15866/IRECON.V6I4.15744","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45996064","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}
{"title":"Hybrid Storage System Energy Management Based on a Predictive Current Controller","authors":"Bessedik Boubaker, Tioursi Mustapha, Khouidmi Houari","doi":"10.15866/IRECON.V6I4.15790","DOIUrl":"https://doi.org/10.15866/IRECON.V6I4.15790","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45999857","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 : 2018-05-31DOI: 10.15866/irecon.v6i3.14289
Serigne Thiao, Awa Mar, Reine Marie Ndew Diokh, C. Mbow, I. Youm
{"title":"Feasibility Study of a Solar Thermal Cooling Warehouse on a Remote Area: Estimation of the Solar Thermal Collector Area and Efficiency","authors":"Serigne Thiao, Awa Mar, Reine Marie Ndew Diokh, C. Mbow, I. Youm","doi":"10.15866/irecon.v6i3.14289","DOIUrl":"https://doi.org/10.15866/irecon.v6i3.14289","url":null,"abstract":"","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44625820","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 : 2018-05-31DOI: 10.15866/IRECON.V6I3.15135
M. Ghazi, E. Essadiqi, M. Mada, M. Faqir, A. Benabdellah
Seawater desalination using Multi effect-plate evaporators and solar energy is one of very promising ways to deal with fresh water shortage and pollution in the same time. Indeed, falling film plate evaporators are becoming more used in the desalination applications. This is because of their multiple advantages compared to tubular evaporators such as high heat transfer rate and low investment cost. This study presents the methodology used for sizing and optimization of plate evaporators for seawater desalination unit using multi effect evaporation and solar thermal energy. The pilot plant unit operates with hot water provided by solar vacuum tubes. The unit was designed for a production capacity of 5 to 7 m3/day of fresh water obtained from evaporation of 28 to 30% of feed seawater. The modeling equations are given at steady-state conditions and they are based on mass, heat balance and heat transfer equations, and thermodynamic and physical properties of each stream. MATLAB programming software is used to resolve the developed algorithm. This work focuses more on studying and analyzing the impact of the number of effects on the total required heat transfer area, the required thermal energy and therefore on the specific cost of water. The obtained results show that it is more beneficial to use nine effects, which gives the key solution for minimizing water production cost. The optimal design shows that the total required heat transfer area of evaporators and the last condenser is approximately equal to 42 m2 and the thermal energy needed to drive the pilot unit is about 64 kW.
{"title":"Optimal Number of Effects for Multi Effect Evaporation Seawater Desalination Process Using Solar Thermal Energy-Plate Evaporators","authors":"M. Ghazi, E. Essadiqi, M. Mada, M. Faqir, A. Benabdellah","doi":"10.15866/IRECON.V6I3.15135","DOIUrl":"https://doi.org/10.15866/IRECON.V6I3.15135","url":null,"abstract":"Seawater desalination using Multi effect-plate evaporators and solar energy is one of very promising ways to deal with fresh water shortage and pollution in the same time. Indeed, falling film plate evaporators are becoming more used in the desalination applications. This is because of their multiple advantages compared to tubular evaporators such as high heat transfer rate and low investment cost. This study presents the methodology used for sizing and optimization of plate evaporators for seawater desalination unit using multi effect evaporation and solar thermal energy. The pilot plant unit operates with hot water provided by solar vacuum tubes. The unit was designed for a production capacity of 5 to 7 m3/day of fresh water obtained from evaporation of 28 to 30% of feed seawater. The modeling equations are given at steady-state conditions and they are based on mass, heat balance and heat transfer equations, and thermodynamic and physical properties of each stream. MATLAB programming software is used to resolve the developed algorithm. This work focuses more on studying and analyzing the impact of the number of effects on the total required heat transfer area, the required thermal energy and therefore on the specific cost of water. The obtained results show that it is more beneficial to use nine effects, which gives the key solution for minimizing water production cost. The optimal design shows that the total required heat transfer area of evaporators and the last condenser is approximately equal to 42 m2 and the thermal energy needed to drive the pilot unit is about 64 kW.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44234664","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 : 2018-05-31DOI: 10.15866/IRECON.V6I3.15095
Pinit Wongdet, U. Leeton, B. Marungsri
Distributed generations (DGs) such as solar and wind generations are used as generation source in the microgrid. Due to the fluctuation of renewable energy sources, the battery energy storage system (BESS) is one of the essential components to control and improve the quality of power microgrid. However, a placement for BESS installation with minimizing line loss is one of the most concern problems. This paper aims to determine the optimal location of the BESS by using the analytical method with the line loss sensitivity index. A multi-period optimal power flow (OPF) and line loss analysis with BESS parameters were investigated considering the daily operation of a microgrid in connected mode. The simulation performed on the microgrid that wants to keep total power generation from DGs in BESS and low energy consumption from the utility. Microgrid includes 3 DGs (biomass, solar and wind turbine generators) to assess the robustness of BESS placement. The results confirmed the effectiveness of the presented method. The optimal location of BESS can reduce line power loss and power consumption from the utility.
{"title":"Line Loss Reduction by Optimal Location of Battery Energy Storage System for the Daily Operation in Microgrid with Distributed Generations","authors":"Pinit Wongdet, U. Leeton, B. Marungsri","doi":"10.15866/IRECON.V6I3.15095","DOIUrl":"https://doi.org/10.15866/IRECON.V6I3.15095","url":null,"abstract":"Distributed generations (DGs) such as solar and wind generations are used as generation source in the microgrid. Due to the fluctuation of renewable energy sources, the battery energy storage system (BESS) is one of the essential components to control and improve the quality of power microgrid. However, a placement for BESS installation with minimizing line loss is one of the most concern problems. This paper aims to determine the optimal location of the BESS by using the analytical method with the line loss sensitivity index. A multi-period optimal power flow (OPF) and line loss analysis with BESS parameters were investigated considering the daily operation of a microgrid in connected mode. The simulation performed on the microgrid that wants to keep total power generation from DGs in BESS and low energy consumption from the utility. Microgrid includes 3 DGs (biomass, solar and wind turbine generators) to assess the robustness of BESS placement. The results confirmed the effectiveness of the presented method. The optimal location of BESS can reduce line power loss and power consumption from the utility.","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48688793","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 : 2013-06-30DOI: 10.15866/IRENA.V1I3.6640
M. Kasaei, H. Norouzi
High current amounts, low voltage level and radial structure assign high percentage of active power loss in distribution system. There are many means in reducing the active power loss of distribution networks; this paper introduces an ant colony algorithm to solve the optimal network reconfiguration and capacitor placement problem for power loss reduction and voltage profile enhancement in distribution networks. The ant colony algorithm was inspired from natural behavior of the ant colonies on how they find the food source and bring them back to their nest by building the unique trial formation. Ants of artificial colony are able to search for the successively shorter feasible routes by using information accumulated in the form of a pheromone trial deposited on the edge of their traveling path. The proposed approach is demonstrated employing one distribution network. Computational results show that by taking into account feeder reconfiguration and capacitor placement simultaneously, one can be minimize losses more efficiently by considering them separately
{"title":"Distribution System Reconfiguration and Capacitor Placement for Loss Reduction by Ant Colony Algorithm","authors":"M. Kasaei, H. Norouzi","doi":"10.15866/IRENA.V1I3.6640","DOIUrl":"https://doi.org/10.15866/IRENA.V1I3.6640","url":null,"abstract":"High current amounts, low voltage level and radial structure assign high percentage of active power loss in distribution system. There are many means in reducing the active power loss of distribution networks; this paper introduces an ant colony algorithm to solve the optimal network reconfiguration and capacitor placement problem for power loss reduction and voltage profile enhancement in distribution networks. The ant colony algorithm was inspired from natural behavior of the ant colonies on how they find the food source and bring them back to their nest by building the unique trial formation. Ants of artificial colony are able to search for the successively shorter feasible routes by using information accumulated in the form of a pheromone trial deposited on the edge of their traveling path. The proposed approach is demonstrated employing one distribution network. Computational results show that by taking into account feeder reconfiguration and capacitor placement simultaneously, one can be minimize losses more efficiently by considering them separately","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67292725","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 : 2013-02-28DOI: 10.15866/IRENA.V1I1.6599
S. Umashankar, D. Vijayakumar, Mandar M. Bhalekar, Surabhi Chandra, D. Kothari
This paper presents the research platform for real time digital simulation applications which replaces the requirement of full scale or partial scale validation of physical systems. To illustrate this, a three phase AC-DC-AC converter topology has been used with diode rectifier, dc link and ideal two level inverter with inductive load. Because of natural decoupling between rectifier and inverter, it is easy to solve the state equation with reduced order system using decoupled method. This method utilizes analytical to formulate the state equations and to rectify the zero crossing errors taylor’s method of interpolation has been implemented which leads to variable step time during that instant otherwise fixed step size of 100 μS is used. The proposed algorithm has been validated in simulation and real time controller domain. Performance of the converter is evaluated based on accuracy, zero crossing and tabulated
{"title":"Development of a Research Platform for Power Electronic Converter Modeling Using Decoupled Analytical Method in Real Time Digital Simulation Applications","authors":"S. Umashankar, D. Vijayakumar, Mandar M. Bhalekar, Surabhi Chandra, D. Kothari","doi":"10.15866/IRENA.V1I1.6599","DOIUrl":"https://doi.org/10.15866/IRENA.V1I1.6599","url":null,"abstract":"This paper presents the research platform for real time digital simulation applications which replaces the requirement of full scale or partial scale validation of physical systems. To illustrate this, a three phase AC-DC-AC converter topology has been used with diode rectifier, dc link and ideal two level inverter with inductive load. Because of natural decoupling between rectifier and inverter, it is easy to solve the state equation with reduced order system using decoupled method. This method utilizes analytical to formulate the state equations and to rectify the zero crossing errors taylor’s method of interpolation has been implemented which leads to variable step time during that instant otherwise fixed step size of 100 μS is used. The proposed algorithm has been validated in simulation and real time controller domain. Performance of the converter is evaluated based on accuracy, zero crossing and tabulated","PeriodicalId":37583,"journal":{"name":"International Journal on Energy Conversion","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67292672","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：