Pub Date : 2019-03-04DOI: 10.1504/IJETP.2019.10012346
Ranvir Kaur, G. Brar
Power electronics applications delve the induction motor drives posing a challenge for researchers to minimise the harmonic content thereby improving the power quality. In this paper, three level voltages are generated by cascading dual two-level voltage source inverters (VSI) with phase shift in their carrier waves. Phase shifted dual two-level inverter is used for total harmonic distortion (THD) reduction and shifting of side band harmonics. Multi inverters, they can be used for high mega volt-ampere ratings. The proposed dual inverter circuit arrangement is tested for 5-hp induction motor. The prototype is designed in MATLAB/simulink and is experimentally verified with TMS320F28377 DSP platform for wide range of speed control of induction motor.
{"title":"Career Shifting Algorithm Creating Virtual Frequency Upsurge to Reduce Switching Losses in Multi-Inverter Fed Induction Motor Drives","authors":"Ranvir Kaur, G. Brar","doi":"10.1504/IJETP.2019.10012346","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10012346","url":null,"abstract":"Power electronics applications delve the induction motor drives posing a challenge for researchers to minimise the harmonic content thereby improving the power quality. In this paper, three level voltages are generated by cascading dual two-level voltage source inverters (VSI) with phase shift in their carrier waves. Phase shifted dual two-level inverter is used for total harmonic distortion (THD) reduction and shifting of side band harmonics. Multi inverters, they can be used for high mega volt-ampere ratings. The proposed dual inverter circuit arrangement is tested for 5-hp induction motor. The prototype is designed in MATLAB/simulink and is experimentally verified with TMS320F28377 DSP platform for wide range of speed control of induction motor.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48504325","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019646
M. Lamnadi, M. Trihi, A. Boulezhar, B. Bossoufi
Stand-alone hybrid renewable energy systems are more reliable than one-energy source systems. However, their design is crucial. For this reason, a new methodology with simulation having as aim to design an autonomous hybrid PV-wind-battery system is proposed. Based on a triple multi-objective, the present methodology combines life cycle cost (LCC), embodied energy (EE) and loss of power supply probability (LPSP). For a location, meteorological and load data have been collected and assessed. Afterwards, components of the system and optimisation objectives have been modelled. Finally, an optimal configuration has been put in place using a dynamic model and applying a controlled elitist genetic algorithm for multi-objective optimisation. This methodology has been applied successfully for the sizing of a PV-wind-battery system to supply at least 95% of yearly total electric demand of a residential house.
{"title":"Optimal design of stand-alone hybrid power system using wind and solar energy sources","authors":"M. Lamnadi, M. Trihi, A. Boulezhar, B. Bossoufi","doi":"10.1504/IJETP.2019.10019646","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019646","url":null,"abstract":"Stand-alone hybrid renewable energy systems are more reliable than one-energy source systems. However, their design is crucial. For this reason, a new methodology with simulation having as aim to design an autonomous hybrid PV-wind-battery system is proposed. Based on a triple multi-objective, the present methodology combines life cycle cost (LCC), embodied energy (EE) and loss of power supply probability (LPSP). For a location, meteorological and load data have been collected and assessed. Afterwards, components of the system and optimisation objectives have been modelled. Finally, an optimal configuration has been put in place using a dynamic model and applying a controlled elitist genetic algorithm for multi-objective optimisation. This methodology has been applied successfully for the sizing of a PV-wind-battery system to supply at least 95% of yearly total electric demand of a residential house.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43756206","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019658
A. Manmadhachary, P.S.M.C. Chanakya
This paper presents an efficient methodology for minimising the energy or power consumption of industrial robot arm. A popular industrial robot is taken as an example to do the analysis, the dimensions of this robot are used to find the joint angles through inverse kinematics, these are used to form energy function. The energy function is dependent on joint angles of the arm, which are derived from the inverse kinematics, and control attributes like friction between joints, movement, settling time and forces acting on the joints. Optimising the energy function will give a set of joint angles which consume minimal energy to perform the required task and also help to predict which optimisation technique (genetic algorithm, artificial neural networks and analytical hierarchy process) is suitable or gives better results for the desired need. In this work the energy function value is reduced by 11% from the original base value.
{"title":"A method to minimise the energy consumption of an industrial robot","authors":"A. Manmadhachary, P.S.M.C. Chanakya","doi":"10.1504/IJETP.2019.10019658","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019658","url":null,"abstract":"This paper presents an efficient methodology for minimising the energy or power consumption of industrial robot arm. A popular industrial robot is taken as an example to do the analysis, the dimensions of this robot are used to find the joint angles through inverse kinematics, these are used to form energy function. The energy function is dependent on joint angles of the arm, which are derived from the inverse kinematics, and control attributes like friction between joints, movement, settling time and forces acting on the joints. Optimising the energy function will give a set of joint angles which consume minimal energy to perform the required task and also help to predict which optimisation technique (genetic algorithm, artificial neural networks and analytical hierarchy process) is suitable or gives better results for the desired need. In this work the energy function value is reduced by 11% from the original base value.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46838370","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019648
S. Akadiri, F. Bekun, E. Taheri, Ada Chigozie Akadiri
Recently, there has been a growing interest on environmental issues, due to climatic-based problems associated with escalated levels of pollution and degradation of the environmental quality. This is widely believed to be caused by increased economic and human activities. The primary focus of this paper is to examine the causal and long-run relationship between carbon emissions, energy consumption and economic growth for Iraq. We apply the bounds test for cointegration and Toda-Yamamoto for a Granger causality test using annual data for the period from 1972 to 2013. The sample coverage is restricted by data unavailability. Empirical results propose unidirectional causality running from economic growth to energy consumption and from carbon emissions to energy consumption in the long-run. Findings reveal that there is no feedback relationship between economic growth, carbon emissions and energy consumption of Iraq.
{"title":"Carbon emissions, energy consumption and economic growth: a causality evidence","authors":"S. Akadiri, F. Bekun, E. Taheri, Ada Chigozie Akadiri","doi":"10.1504/IJETP.2019.10019648","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019648","url":null,"abstract":"Recently, there has been a growing interest on environmental issues, due to climatic-based problems associated with escalated levels of pollution and degradation of the environmental quality. This is widely believed to be caused by increased economic and human activities. The primary focus of this paper is to examine the causal and long-run relationship between carbon emissions, energy consumption and economic growth for Iraq. We apply the bounds test for cointegration and Toda-Yamamoto for a Granger causality test using annual data for the period from 1972 to 2013. The sample coverage is restricted by data unavailability. Empirical results propose unidirectional causality running from economic growth to energy consumption and from carbon emissions to energy consumption in the long-run. Findings reveal that there is no feedback relationship between economic growth, carbon emissions and energy consumption of Iraq.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42313887","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019647
Yu Sang Chang, Seongmin Jeon, NeiHei Park
Countries' energy intensity levels are known to converge at both global and regional levels. We test the convergence in energy intensity using a large recent dataset: a 151-country sample during the period of 1980-2010. In addition, time phase and income are examined to identify the factors that influence a country's aggregate level of energy intensity. With income time-phased analysis, we discovered a pronounced convergence during the period between 1980 and 1990 and then a moderate convergence later during the period. With the subgroup analysis, middle income yields the most rapid convergence. Furthermore, high income's negative role is so pervasive that non-convergence or divergence may take place.
{"title":"Do time phase and income influence the convergence in energy intensity A cross-country analysis","authors":"Yu Sang Chang, Seongmin Jeon, NeiHei Park","doi":"10.1504/IJETP.2019.10019647","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019647","url":null,"abstract":"Countries' energy intensity levels are known to converge at both global and regional levels. We test the convergence in energy intensity using a large recent dataset: a 151-country sample during the period of 1980-2010. In addition, time phase and income are examined to identify the factors that influence a country's aggregate level of energy intensity. With income time-phased analysis, we discovered a pronounced convergence during the period between 1980 and 1990 and then a moderate convergence later during the period. With the subgroup analysis, middle income yields the most rapid convergence. Furthermore, high income's negative role is so pervasive that non-convergence or divergence may take place.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42715118","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019656
E. U. Chye, A. Levenets, V. Ivanov
This article gives a brief analysis of theoretical works in the field of the theory of information-measuring systems with data compression. It is shown that when developing the problems of compression of measurement data, digital methods are practically not considered. A critical analysis of the methods of compression of measurement data is carried out. The limitations of the modern approach to data compression are shown. A model of a compression subsystem for measuring data is proposed that allows describing the compression and recovery subsystems that implement the proposed basic principles of working with measurement data. Some of the principles that allow developing effective methods for compressing measurement data are proposed.
{"title":"The basic principles of increasing in efficiency of data compressing in information-measuring systems","authors":"E. U. Chye, A. Levenets, V. Ivanov","doi":"10.1504/IJETP.2019.10019656","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019656","url":null,"abstract":"This article gives a brief analysis of theoretical works in the field of the theory of information-measuring systems with data compression. It is shown that when developing the problems of compression of measurement data, digital methods are practically not considered. A critical analysis of the methods of compression of measurement data is carried out. The limitations of the modern approach to data compression are shown. A model of a compression subsystem for measuring data is proposed that allows describing the compression and recovery subsystems that implement the proposed basic principles of working with measurement data. Some of the principles that allow developing effective methods for compressing measurement data are proposed.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44676888","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019657
V. Filaretov, A. Konoplin, N. Konoplin
The development and research of the new synthesis method of the control system for an autonomous underwater vehicle (AUV) with a multilink manipulator is described in the paper. This system provides an automatic soil sampling and the taking of geological samples of a sea bottom surface. In automatic mode, the developed system defines the location of a bottom surface relative to the AUV by means of the onboard multibeam Doppler lag. During the vehicle immersion, the system evaluates the complexity of the bottom relief in the working area and makes decision on the suitability of the said relief for the trouble-free implementation of the specified manipulative tasks. Also, the proposed system realises the formation algorithm for spatial trajectories of the multilink underwater manipulator's working tool and defines the AUV spatial orientation and position at which the performing of manipulation operations occurs most efficiently and safely.
{"title":"System for automatic soil sampling by AUV equipped with multilink manipulator","authors":"V. Filaretov, A. Konoplin, N. Konoplin","doi":"10.1504/IJETP.2019.10019657","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019657","url":null,"abstract":"The development and research of the new synthesis method of the control system for an autonomous underwater vehicle (AUV) with a multilink manipulator is described in the paper. This system provides an automatic soil sampling and the taking of geological samples of a sea bottom surface. In automatic mode, the developed system defines the location of a bottom surface relative to the AUV by means of the onboard multibeam Doppler lag. During the vehicle immersion, the system evaluates the complexity of the bottom relief in the working area and makes decision on the suitability of the said relief for the trouble-free implementation of the specified manipulative tasks. Also, the proposed system realises the formation algorithm for spatial trajectories of the multilink underwater manipulator's working tool and defines the AUV spatial orientation and position at which the performing of manipulation operations occurs most efficiently and safely.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49478900","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 : 2019-03-04DOI: 10.1504/IJETP.2019.10019661
A. Mishra, N. Khare
Graphical-processing unit (GPU) handles massive data, effectively, as compared to CPU but has high power consumption which is a primary concern recently. A real-time dynamic voltage frequency scaling technique (DVFS) to save energy as well as improve performance, and to set the core and the memory frequency at a run time are proposed. Real-time DVFS is well investigated for saving energy and improving the performance by executing a breadth-first search (BFS) graph traversal algorithm from scalable heterogeneous computing (SHOC) benchmark suite. Two modes: energy saving and performance mode, can be realised by implementation of the proposed real-time DVFS algorithm. In energy saving mode, 28.2% energy can be saved with a performance improvement of 1.4%. On the other hand, 14.2% performance improvement is accomplished while maintaining the energy saving of 11.2% in performance mode. The proposed work is realised on K40c GPU received as a grant from NVidia.
{"title":"Energy and performance improvement using real-time DVFS for graph traversal on GPU","authors":"A. Mishra, N. Khare","doi":"10.1504/IJETP.2019.10019661","DOIUrl":"https://doi.org/10.1504/IJETP.2019.10019661","url":null,"abstract":"Graphical-processing unit (GPU) handles massive data, effectively, as compared to CPU but has high power consumption which is a primary concern recently. A real-time dynamic voltage frequency scaling technique (DVFS) to save energy as well as improve performance, and to set the core and the memory frequency at a run time are proposed. Real-time DVFS is well investigated for saving energy and improving the performance by executing a breadth-first search (BFS) graph traversal algorithm from scalable heterogeneous computing (SHOC) benchmark suite. Two modes: energy saving and performance mode, can be realised by implementation of the proposed real-time DVFS algorithm. In energy saving mode, 28.2% energy can be saved with a performance improvement of 1.4%. On the other hand, 14.2% performance improvement is accomplished while maintaining the energy saving of 11.2% in performance mode. The proposed work is realised on K40c GPU received as a grant from NVidia.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45498952","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 : 2018-10-16DOI: 10.1504/IJETP.2018.10016626
Javad Soltanzadeh, R. Salami
Achieving sustainable development, environmental protection and security of energy supply are two main challenges of government in developed or developing countries. In developed countries, technological regimes and its actors have self-willingness to track advanced technologies and new knowledge (such as Fuel Cell) due to system and market failures, developing countries need to insert RD 2) most of these papers focus on PEM and SOFC; 3) more than 80% of total papers have been published by 23 public universities; 4) policymakers must create R&D network to improve funding efficiency and design effective policy to commercialize new created knowledge that encourages the demand side.
{"title":"Role of public R%D funding in fuel cell: analysis on Iranian universities","authors":"Javad Soltanzadeh, R. Salami","doi":"10.1504/IJETP.2018.10016626","DOIUrl":"https://doi.org/10.1504/IJETP.2018.10016626","url":null,"abstract":"Achieving sustainable development, environmental protection and security of energy supply are two main challenges of government in developed or developing countries. In developed countries, technological regimes and its actors have self-willingness to track advanced technologies and new knowledge (such as Fuel Cell) due to system and market failures, developing countries need to insert RD 2) most of these papers focus on PEM and SOFC; 3) more than 80% of total papers have been published by 23 public universities; 4) policymakers must create R&D network to improve funding efficiency and design effective policy to commercialize new created knowledge that encourages the demand side.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":"14 1","pages":"409-428"},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42654873","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 : 2018-10-16DOI: 10.1504/IJETP.2018.10016625
M. Ebrahimi
The main objective of this study is to build a decision model adapted to prioritise renewable energy technologies by applying fuzzy multi-criteria decision-making (MCDM) methods. A comprehensive set of criteria is presented based on sustainability due to its importance in the long-term, particularly in the field of energy which is a key element of sustainable development. They are classified into five categories such as technical, economic, environmental, social, and political criteria. This model is then operationalised in the scope of solar energy technologies in Iran. This paper examines and compares the results of fuzzy TOPSIS and fuzzy PROMETHEE based on a single decision maker. The results show that rather than the two technologies, others in both methods have moderate differences in ranking. However, technological decisions are preferred to be made based on FTOPSIS results because it is considered to be more realistic.
{"title":"A fuzzy MCDM-based approach for renewable energy technologies prioritisation","authors":"M. Ebrahimi","doi":"10.1504/IJETP.2018.10016625","DOIUrl":"https://doi.org/10.1504/IJETP.2018.10016625","url":null,"abstract":"The main objective of this study is to build a decision model adapted to prioritise renewable energy technologies by applying fuzzy multi-criteria decision-making (MCDM) methods. A comprehensive set of criteria is presented based on sustainability due to its importance in the long-term, particularly in the field of energy which is a key element of sustainable development. They are classified into five categories such as technical, economic, environmental, social, and political criteria. This model is then operationalised in the scope of solar energy technologies in Iran. This paper examines and compares the results of fuzzy TOPSIS and fuzzy PROMETHEE based on a single decision maker. The results show that rather than the two technologies, others in both methods have moderate differences in ranking. However, technological decisions are preferred to be made based on FTOPSIS results because it is considered to be more realistic.","PeriodicalId":35754,"journal":{"name":"International Journal of Energy Technology and Policy","volume":"14 1","pages":"369-389"},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42504240","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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