Pub Date : 2018-05-01DOI: 10.1109/MERCON.2018.8421895
Deepal Tennakoon, S. Karunarathna, B. Udugama
—In this paper, we propose a Q-Learning approach for load balancing in Software Defined Networks to reduce the number of Unsatisfied Users in a 5G network. This solution integrates Q-Learning techniques with a fairness function to improve the user experience at peak traffic conditions. With typical high rates offered by 5G and future networks single user behavior shall have a significant impact on the Quality of Service (QoS) on the rest of the users. Therefore, we are in need of responsive networks based on their utilization and on the number of users occupied. In this paper we classify users into different groups and normalize the resources to provide the best QoS. The simulation results verify the improvement in terms of the number of Unsatisfied Users and of the connections dropped. Additionally, it enhances per-flow resource allocation while avoiding over-utilization of certain network resources. In a nutshell, this proposal will serve any future network with high traffic conditions to deliver the best QoS to their end users.
{"title":"Q-learning Approach for Load-balancing in Software Defined Networks","authors":"Deepal Tennakoon, S. Karunarathna, B. Udugama","doi":"10.1109/MERCON.2018.8421895","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421895","url":null,"abstract":"—In this paper, we propose a Q-Learning approach for load balancing in Software Defined Networks to reduce the number of Unsatisfied Users in a 5G network. This solution integrates Q-Learning techniques with a fairness function to improve the user experience at peak traffic conditions. With typical high rates offered by 5G and future networks single user behavior shall have a significant impact on the Quality of Service (QoS) on the rest of the users. Therefore, we are in need of responsive networks based on their utilization and on the number of users occupied. In this paper we classify users into different groups and normalize the resources to provide the best QoS. The simulation results verify the improvement in terms of the number of Unsatisfied Users and of the connections dropped. Additionally, it enhances per-flow resource allocation while avoiding over-utilization of certain network resources. In a nutshell, this proposal will serve any future network with high traffic conditions to deliver the best QoS to their end users.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"44 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83572536","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421963
J. Jayasinghe, H. Mallikarachchi, S. Nanayakkara, W. Dias
Although reinforced concrete is the mostly widely used construction material, it presents some inherent durability problems. Corrosion of reinforcement is one such issue that researchers across several generations have tried to assess and attenuate. Though different forms of corrosion have been studied, there is not much reported research on the corrosion (and its propagation) of reinforcement embedded in concrete with one end directly exposed to aggressive agents. This phenomenon is explored in this paper through numerical and experimental approaches. The experimental procedure was designed so that accelerated corrosion was induced while the resulting strain values were monitored. Simultaneously a conceptual numerical model was developed to capture the incremental corrosion propagation. A reasonable comparison between the experiment and numerical model is demonstrated, although the observed differences are also discussed.
{"title":"Modelling of Corrosion Induced Cover Cracking in Concrete with Exposed Reinforcement","authors":"J. Jayasinghe, H. Mallikarachchi, S. Nanayakkara, W. Dias","doi":"10.1109/MERCON.2018.8421963","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421963","url":null,"abstract":"Although reinforced concrete is the mostly widely used construction material, it presents some inherent durability problems. Corrosion of reinforcement is one such issue that researchers across several generations have tried to assess and attenuate. Though different forms of corrosion have been studied, there is not much reported research on the corrosion (and its propagation) of reinforcement embedded in concrete with one end directly exposed to aggressive agents. This phenomenon is explored in this paper through numerical and experimental approaches. The experimental procedure was designed so that accelerated corrosion was induced while the resulting strain values were monitored. Simultaneously a conceptual numerical model was developed to capture the incremental corrosion propagation. A reasonable comparison between the experiment and numerical model is demonstrated, although the observed differences are also discussed.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"96 1","pages":"120-125"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89982796","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421904
K. L. I. M. Pramod B. Jayarathna, W. E. P. Sampath Ediriweera, J. R. Lucas, R. Samarasinghe
Sweep Frequency response analysis is a widely used condition monitoring technique of power transformers that includes interpreting transfer function in frequency domain. This paper presents a novel approach to model the transfer function numerically in laplace domain. Derivation of transfer function involves complex mathematical calculations as it is a ratio of two high order polynomials resulted by the complex nature of circuitry inside power transformers. An algorithm, based on Levy’s and Sanathanan-Koerner method, presented in this paper can be used to derive entire transfer function accurately and more efficiently. Estimated transfer functions using this method can be incorporated in transformer fault diagnosis especially for internal faults caused by winding deformation and core displacement.
{"title":"Modelling Transfer Function of Power Transformers Using Sweep Frequency Response Analysis","authors":"K. L. I. M. Pramod B. Jayarathna, W. E. P. Sampath Ediriweera, J. R. Lucas, R. Samarasinghe","doi":"10.1109/MERCON.2018.8421904","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421904","url":null,"abstract":"Sweep Frequency response analysis is a widely used condition monitoring technique of power transformers that includes interpreting transfer function in frequency domain. This paper presents a novel approach to model the transfer function numerically in laplace domain. Derivation of transfer function involves complex mathematical calculations as it is a ratio of two high order polynomials resulted by the complex nature of circuitry inside power transformers. An algorithm, based on Levy’s and Sanathanan-Koerner method, presented in this paper can be used to derive entire transfer function accurately and more efficiently. Estimated transfer functions using this method can be incorporated in transformer fault diagnosis especially for internal faults caused by winding deformation and core displacement.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"51 1","pages":"500-505"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72653416","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421978
W. Karunathilake, R. Halwatura, S. Pathirana
The aim of this study is to evaluate the thermal comfort state in residential buildings in Sri Lanka and to study the possibility of getting them into the comfort zone without air conditioning. Located near the equator, Sri Lanka has a tropical climate with high temperature and relative humidity level. Therefore, the need of having a thermally comfortable living environment is a must in these conditions. A case study approach has been made in this study to evaluate the research problem. The selected 14 case study houses were optimized using Design-Builder, energy simulation software. The evaluation results highlight that the comfort level of the houses can be improved using mud concrete blocks as the external wall material and clay tiles as roofing. The optimisation results further indicate that thermal comfort level of the residential buildings in Sri Lanka can be achieved without using air conditioning if designed properly
{"title":"Optimization of Thermal Comfort in Sri Lankan Residential Buildings","authors":"W. Karunathilake, R. Halwatura, S. Pathirana","doi":"10.1109/MERCON.2018.8421978","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421978","url":null,"abstract":"The aim of this study is to evaluate the thermal comfort state in residential buildings in Sri Lanka and to study the possibility of getting them into the comfort zone without air conditioning. Located near the equator, Sri Lanka has a tropical climate with high temperature and relative humidity level. Therefore, the need of having a thermally comfortable living environment is a must in these conditions. A case study approach has been made in this study to evaluate the research problem. The selected 14 case study houses were optimized using Design-Builder, energy simulation software. The evaluation results highlight that the comfort level of the houses can be improved using mud concrete blocks as the external wall material and clay tiles as roofing. The optimisation results further indicate that thermal comfort level of the residential buildings in Sri Lanka can be achieved without using air conditioning if designed properly","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"21 1","pages":"150-155"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73380645","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421915
Isuru A. Udugama, S. Mansouri, R. Kirkpatrick, B. Young, Michael A. Taube
The formation of organic acids due to secondary reactions is an issue in industrial methanol synthesis. As such, to avoid the formation of acidic regions in the units downstream of the methanol synthesis loop, caustic dosing is a common practice in the industry. Despite these precautions, some organic acids can be left in crude methanol discharge from the methanol synthesis loop. The objective of this study was to identify if the mode of operations in the methanol distillation units that purifies the crude methanol into high purity product can potentially lead to an accumulation of trace organic acids within the main refining column, which can lead to the formation of an acidic region within the column. To carry out this work, the main refining column of an industrial methanol producer was first simulated on the industrial process simulation platform VMGSim, and then validated against available data. This simulation was then used to study the accumulation of organic acids ranging from formic acid to valeric acid, where they were added to the feed stream at a concentration of 1 ppm. The study found that propionic and butyric acid, in particular, can accumulate significantly in the middle of the column reaching a concentration of 40 to 80 ppm creating an acidic environment (PH 3.63), which can cause corrosive damage.
{"title":"Dangers of Component Trapping in Distillation: : An Industrial Methanol Distillation Case Study","authors":"Isuru A. Udugama, S. Mansouri, R. Kirkpatrick, B. Young, Michael A. Taube","doi":"10.1109/MERCON.2018.8421915","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421915","url":null,"abstract":"The formation of organic acids due to secondary reactions is an issue in industrial methanol synthesis. As such, to avoid the formation of acidic regions in the units downstream of the methanol synthesis loop, caustic dosing is a common practice in the industry. Despite these precautions, some organic acids can be left in crude methanol discharge from the methanol synthesis loop. The objective of this study was to identify if the mode of operations in the methanol distillation units that purifies the crude methanol into high purity product can potentially lead to an accumulation of trace organic acids within the main refining column, which can lead to the formation of an acidic region within the column. To carry out this work, the main refining column of an industrial methanol producer was first simulated on the industrial process simulation platform VMGSim, and then validated against available data. This simulation was then used to study the accumulation of organic acids ranging from formic acid to valeric acid, where they were added to the feed stream at a concentration of 1 ppm. The study found that propionic and butyric acid, in particular, can accumulate significantly in the middle of the column reaching a concentration of 40 to 80 ppm creating an acidic environment (PH 3.63), which can cause corrosive damage.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"45 1","pages":"49-53"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79489456","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421903
M.A.E. Ayomani, J.M.C. Hansadi, S. Wijayapala
This research, investigates the ability to transfer antimicrobial properties of Neem (Azadirachta indica) to cotton single jersey knitted fabrics. The effectiveness of two existing application methods, direct application (pad-dry-cure) and application of microencapsulated Neem oil using pad-dry and dip-dry methods were studied. Commercially available Neem seed oil was confirmed to have acceptable level of thermal and light stability through FTIR spectroscopy. (Same tests were repeated for Neemazal-F product; however, the outcomes were less favourable.) Agar diffusion test (BS EN ISO 20645:2004) carried out on specimens also confirmed the antimicrobial efficacy of the pure oil and the treated fabrics against Staphylococcus aureus. However, the fabrics treated with microencapsulated Neem seed oil showed better transfer efficiency, wash fastness properties and aesthetic properties.
本研究考察了印楝(印楝)抗菌性能转移到棉质单针织物上的能力。研究了印楝油的直接涂敷(垫干固化)和微胶囊化涂敷(垫干和浸干)两种现有涂敷方法的效果。市售印楝籽油经FTIR光谱证实具有可接受的热稳定性和光稳定性。(Neemazal-F产品重复同样的测试;然而，结果却不那么乐观。)对样品进行的琼脂扩散试验(BS EN ISO 20645:2004)也证实了纯油和处理过的织物对金黄色葡萄球菌的抗菌效果。微胶囊化印楝籽油处理后的织物具有更好的转移效率、洗涤牢度和美观性。
{"title":"Investigating the Ability to Transfer Antimicrobial Properties of Neem Seed Oil to Cotton Knitted Fabrics","authors":"M.A.E. Ayomani, J.M.C. Hansadi, S. Wijayapala","doi":"10.1109/MERCON.2018.8421903","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421903","url":null,"abstract":"This research, investigates the ability to transfer antimicrobial properties of Neem (Azadirachta indica) to cotton single jersey knitted fabrics. The effectiveness of two existing application methods, direct application (pad-dry-cure) and application of microencapsulated Neem oil using pad-dry and dip-dry methods were studied. Commercially available Neem seed oil was confirmed to have acceptable level of thermal and light stability through FTIR spectroscopy. (Same tests were repeated for Neemazal-F product; however, the outcomes were less favourable.) Agar diffusion test (BS EN ISO 20645:2004) carried out on specimens also confirmed the antimicrobial efficacy of the pure oil and the treated fabrics against Staphylococcus aureus. However, the fabrics treated with microencapsulated Neem seed oil showed better transfer efficiency, wash fastness properties and aesthetic properties.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"32 1","pages":"396-401"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78475452","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8422005
Yasiru Nilan, Darika Sellahewa, S. Fernando, Lakshan Gamage, D. Meedeniya
Adverse drug reactions (ADRs) are common major issue in the health-care system that occur mainly due to the interactions among different medicines prescribed for different diseases. Other than the interactions among different medicines, life habits such as food consumption, alcohol consumption and smoking also affect the occurrence of ADRs. The main goal of this research is the identification of ADRs occur due to the interactions of medicines. The proposed solution identifies conflicts among different medicines and diseases based on rules defined using formal methods and provides alternative treatment paths. This study is supported by a mobile application that can be used by both medical practitioners and public users. The outcome of this research can be used by medical officers as a clinical decision support system to assist the prescription process.
{"title":"A Clinical Decision Support System for Drug Conflict Identification","authors":"Yasiru Nilan, Darika Sellahewa, S. Fernando, Lakshan Gamage, D. Meedeniya","doi":"10.1109/MERCON.2018.8422005","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8422005","url":null,"abstract":"Adverse drug reactions (ADRs) are common major issue in the health-care system that occur mainly due to the interactions among different medicines prescribed for different diseases. Other than the interactions among different medicines, life habits such as food consumption, alcohol consumption and smoking also affect the occurrence of ADRs. The main goal of this research is the identification of ADRs occur due to the interactions of medicines. The proposed solution identifies conflicts among different medicines and diseases based on rules defined using formal methods and provides alternative treatment paths. This study is supported by a mobile application that can be used by both medical practitioners and public users. The outcome of this research can be used by medical officers as a clinical decision support system to assist the prescription process.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"25 1","pages":"126-131"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82178694","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}
Among the statistical approaches for math word problem solving, template based approaches have shown to be more robust against a wide spectrum of math word problems, while other approaches target simple arithmetic problems that compose of only one operation or equation. However, even template based systems are poor in performance for questions that contain different units to describe the same measurement. This paper presents a unit conflict resolution system to improve the performance and accuracy of template based systems under minimal supervision. To illustrate the importance of unit conflict resolution for math word problems, we have annotated a new dataset of 385 algebra word problems. We evaluate the performance of our approach both on a benchmark dataset and this new dataset. Experimental results show that integration of our system to an existing automatic math word problem solver outperforms state-of-the-art results when the dataset contains different units to describe the same measurement.
{"title":"Unit Conflict Resolution for Automatic Math Word Problem Solving","authors":"Nuwantha Dewappriya, Gimhani Uthpala Kankanamge, Dushani Wellappili, Asela Hevapathige, Surangika Ranathunga","doi":"10.1109/MERCON.2018.8421922","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421922","url":null,"abstract":"Among the statistical approaches for math word problem solving, template based approaches have shown to be more robust against a wide spectrum of math word problems, while other approaches target simple arithmetic problems that compose of only one operation or equation. However, even template based systems are poor in performance for questions that contain different units to describe the same measurement. This paper presents a unit conflict resolution system to improve the performance and accuracy of template based systems under minimal supervision. To illustrate the importance of unit conflict resolution for math word problems, we have annotated a new dataset of 385 algebra word problems. We evaluate the performance of our approach both on a benchmark dataset and this new dataset. Experimental results show that integration of our system to an existing automatic math word problem solver outperforms state-of-the-art results when the dataset contains different units to describe the same measurement.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"93 1","pages":"191-196"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84244747","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421928
I. Mahakalanda
Markets for water are often regarded as the most promising method of managing storable surface water resource. Most of the focus of the existing water market literature is on physical trading arrangements. But financial property rights can be both conceptually and practically appealing, as a way to develop commercial and organizational arrangements to improve liquidity and ultimately increase efficient resource use. Different forms of contracts could help participants to deal with the issues such as second order effects of a market, risk, market power and incentivize holders to meet contract obligations. This paper explores some financial contracting ideas drawn from electricity market literature to develop financial contracts for water markets. However, intuitive understanding of such contracting can be difficult because the joint impact of bids determines market water flow, not gravity.
{"title":"Financial Contracting for Hydro Generators in a Water Market","authors":"I. Mahakalanda","doi":"10.1109/MERCON.2018.8421928","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421928","url":null,"abstract":"Markets for water are often regarded as the most promising method of managing storable surface water resource. Most of the focus of the existing water market literature is on physical trading arrangements. But financial property rights can be both conceptually and practically appealing, as a way to develop commercial and organizational arrangements to improve liquidity and ultimately increase efficient resource use. Different forms of contracts could help participants to deal with the issues such as second order effects of a market, risk, market power and incentivize holders to meet contract obligations. This paper explores some financial contracting ideas drawn from electricity market literature to develop financial contracts for water markets. However, intuitive understanding of such contracting can be difficult because the joint impact of bids determines market water flow, not gravity.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"35 1","pages":"132-137"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91095728","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 : 2018-05-01DOI: 10.1109/MERCON.2018.8421902
Thilni Gunaratne, D. Wijesinghe, Kanishka Wijerathne, P. Binduhewa, J. Ekanayake
The rapid development of PV systems and energy storage techniques have created opportunities for further evolvements on the utility side. On the other hand, the number of conversion stages required to feed inherent and converter controlled dc loads from the ac grid have compromised the efficient operation of the power grid. The proposed multi-port distribution interface combines dc and ac power resources and dc and ac loads with minimum number of power electronic conversion stages thus increases the energy efficiency. This paper presents the development of the converters and the controller functions of the proposed interface which is to be implemented in a domestic scale. Along with the individual simulations the paper includes several case studies where different behaviors of the overall system are discussed.
{"title":"AC-DC Multi-port Domestic Distribution Interface","authors":"Thilni Gunaratne, D. Wijesinghe, Kanishka Wijerathne, P. Binduhewa, J. Ekanayake","doi":"10.1109/MERCON.2018.8421902","DOIUrl":"https://doi.org/10.1109/MERCON.2018.8421902","url":null,"abstract":"The rapid development of PV systems and energy storage techniques have created opportunities for further evolvements on the utility side. On the other hand, the number of conversion stages required to feed inherent and converter controlled dc loads from the ac grid have compromised the efficient operation of the power grid. The proposed multi-port distribution interface combines dc and ac power resources and dc and ac loads with minimum number of power electronic conversion stages thus increases the energy efficiency. This paper presents the development of the converters and the controller functions of the proposed interface which is to be implemented in a domestic scale. Along with the individual simulations the paper includes several case studies where different behaviors of the overall system are discussed.","PeriodicalId":6603,"journal":{"name":"2018 Moratuwa Engineering Research Conference (MERCon)","volume":"1 1","pages":"288-293"},"PeriodicalIF":0.0,"publicationDate":"2018-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88912395","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：