D. S. Marins, F. Antunes, Marcus Vinicius F. Sampaio
{"title":"Increasing Capacity of Overhead Transmission Lines – A Challenge for Brazilian Wind Farms","authors":"D. S. Marins, F. Antunes, Marcus Vinicius F. Sampaio","doi":"10.1109/ENERGYCon48941.2020.9236516","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236516","url":null,"abstract":"The Brazilian northeast wind resource makes the region attractive for the construction of wind generation projects and consequently brings the need for investments in new transmission lines to supply this increase in generation demand. This paper presents the case study of the increased ampacity of a 230kV overhead transmission line in the state of Pernambuco, responsible for the generation flow of a windfarm under different wind speeds. The study analyzes the impact of wind speed variations on the power transmission capacity. Analyzes of the wind atlas of the state of Pernambuco and information from the National Institute of Meteorology database are performed. The results showed that the increase in wind speed up to 4.0m/s results in the increase of wind farm installed capacity, with approximately 70% generation gains.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122183186","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":"Vehicle-to-Grid Management Strategy for Smart Grid Power Regulation","authors":"Hassen Chtioui, G. Boukettaya","doi":"10.1109/ENERGYCon48941.2020.9236530","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236530","url":null,"abstract":"Growing environmental threats have brought to the fore the need to transition into clean and sustainable economies. Countless ground-breaking technological developments have been made in pursuit of discovering and integrating better energy sources such as electric vehicles for smart grids. This paper aims to study a proposed simulation environment representing a micro-grid containing a fleet of electric vehicles with a limited vehicle-to-grid application. In fact, the discharging mode is only applied in the case of peak demand with a very high response time. The building blocks of this micro-grid are outlined and modeled and a simulation of their operations is presented. The paper delves into the management strategies used to regulate the power in this simulation and investigates further the charging and discharging scenarios.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115266320","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":"Minigrid integration in sub-Saharan Africaidentifying the ‘optimal’ point of connection","authors":"Madalitso Chikumbanje, D. Frame, S. Galloway","doi":"10.1109/ENERGYCon48941.2020.9236457","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236457","url":null,"abstract":"Considering the effort and resources dedicated towards the Sustainable Development Goal number seven (SDG7) of “ensuring energy access for all”, a post-2030 sub-Saharan Africa will be filled with a range of network solutions - main grids, minigrids and nano-grids. In time, some of the smaller networks will expand while others will be abandoned for better and resilient energy sources. However, such integration will pose technical challenges as most off-grid systems are designed and sized without any consideration of the main grid or other off-grid systems. This paper proposes that the identification of grid feedin point into the minigrid network will be one of the critical decisions in integrating the main grid with once autonomous minigrids. Using power flow simulations of case study networks, results indicate that technical parameters such as losses and voltage drops on the local network vary significantly with choice of feed-in point, influencing the performance of the local network as well as its ability to accommodate more distributed energy resources in future. Based on these results, initial recommendations are made concerning the interconnection of such networks.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115670995","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}
Sumer S. Hardan, Haroutuon A. Hairik, Rabee’H. THejeel
{"title":"Matlab/Simulink-Based Modeling of Typical Inductive Power Transfer (IPT) System","authors":"Sumer S. Hardan, Haroutuon A. Hairik, Rabee’H. THejeel","doi":"10.1109/ENERGYCon48941.2020.9236534","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236534","url":null,"abstract":"This paper presents detailed modeling principles of a typical Inductive Power Transfer (IPT) module using the Matlab/Simulink software. The presented model is based on AC-AC Matrix Converter that are implemented by four MOSFET switch followed by resonance LC circuit. The presented models are designed with user-friendly blocks from the Simulink block library. The models provide better understanding of the output current characteristics of a AC-AC Matrix Converter model under resonance frequency conditions. The output current characteristics has frequency 3$theta$ Khz, sinusoidal form with various amplitude value.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122675250","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":"New Planning Principles for Distribution Networks with Penetration of Distributed Energy Resources","authors":"M. J. Chihota, B. Bekker","doi":"10.1109/ENERGYCon48941.2020.9236463","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236463","url":null,"abstract":"Power systems are experiencing an increased uptake of distributed energy resources (DERs) such as photovoltaic (PV), wind power, battery energy storage systems (BESS) and electric vehicles (EVs). While DER penetration has several benefits, it can also result in some technical issues. The most reported issues include voltage-rise, voltage-drop, unbalance, and the thermal loading of conductors and transformers. For these issues, the severity depends on the conditions and level of penetration. As a result, current research focusses on deriving limits for penetration for regulation on existing networks. For new electrification systems, the uptake of DERs demands new planning principles such that the sizing and selection of network equipment, such as feeder cables and transformers, consider scenarios of DER uptake. Furthermore, the uncertainty associated with the operation of such networks, particularly the location and capacity of DERs, must be considered. This paper discusses the requirements for probabilistic network planning, considering DER penetration. Results from comparative studies of selected approaches show the inadequacy of traditional planning methods and demonstrate the need to include the uncertainty of future DER installations, else the designed systems are prone to be noncompliant under various penetration scenarios in the future.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129410901","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":"Modelling, Control and simulation of an MMC applied to a point to point HVDC system","authors":"Rekik Asma, Gruson François, Boukettaya Ghada","doi":"10.1109/ENERGYCon48941.2020.9236604","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236604","url":null,"abstract":"Modular Multilevel Converters for High Voltage Direct Current (MMC_HVDC) is a promising technique to be applied in the future smart grid.This modular configuration allow to output almost an ideal sinusoidal voltage which permit to prevent the harmonic injected to the power system; therefore, there is no need to use a large filters in the system. Furthermore, it allows to support a high voltage. It is appropriated for the HVDC transmission systems.This paper studies the operation of a point to point MMCHVDC system simulated with its associated loop controller.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129941694","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}
S. Ahmed, F. Ahmed, S. Ahammed, M. Al-Amin, Md. Nasimul Islam Maruf, A. M. Saleque, M. Rahman
{"title":"Construction of a Parabolic Solar Cooker using Mylar Tape for Rohingya Refugee Rehabilitation Program","authors":"S. Ahmed, F. Ahmed, S. Ahammed, M. Al-Amin, Md. Nasimul Islam Maruf, A. M. Saleque, M. Rahman","doi":"10.1109/ENERGYCon48941.2020.9236526","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236526","url":null,"abstract":"Nearly one million Rohingya people now live in Cox’s Bazar, Bangladesh, the world’s biggest refugee camp. Burning firewood by these people for cooking purposes would intensify the deforestation that will eventually seriously damage the Cox’s Bazar ecosystem. Since this part of Bangladesh is flourishing with ample solar radiation, the use of a parabolic solar cooker can be a good alternative to cooking. This paper demonstrates the development of a solar parabolic cooker using low-cost materials to be used in the rehabilitation program for Rohingya. The cooker has an aperture diameter of 62 cm and a focal length of 44 cm. Mylar tape is used as a reflective material that helps to concentrate solar irradiance at the focal point of the incident. The black cast aluminum vessel which serves as the cooking pot absorbs the concentrated heat. Experimental results show that 500 gm of rice can be cooked within 50-55 minutes by the developed solar parabolic cooker. Besides the highest water temperature 373.05 K is achieved by this cooker. Moreover, this parabolic solar cooker can cook an omelet within 5-7 minutes. In addition, the parabolic solar cooker is tested at different weather conditions and the maximum cooking temperature of 390.95 K is achieved.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124887484","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":"On the Impact of Solar Photovoltaic Generation on the Thermal Ageing of Transformers","authors":"B. A. Thango, J. Jordaan, A. Nnachi","doi":"10.1109/ENERGYCon48941.2020.9236471","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236471","url":null,"abstract":"In the last decade, solar photovoltaic energy generation has emerged as one of the leading vanguards of renewable energy source generation in South Africa. The considerable growth in the deployment of solar photovoltaic plants has grabbed the attention of worldwide project developers, investors and stakeholders. In the way indicated, more devised efforts are essential to wield the guarantee that solar photovoltaic plant equipment operate to meet the requirement of solar photovoltaic environment and facilitate the generation of energy as required. One such equipment susceptible to the harmonics and distortion generated by the connected inverters and resonances due to the non-linear loads is the step-up transformer. Harmonics and distortion are well known to introduce additional losses, hotspot temperature rise and reduction of the transformer service life. The rise in hotspot temperature yield abnormal levels of ignitable gases in the step-up transformer oil such that untimely failures may take place. The concentration of this gases suggests partial discharge and excessive heating. Recently reported studies evoke that the designing of solar photovoltaic plant transformers be more robust. This paper intends to contribute additional knowledge towards understanding the adverse effects related to harmonic currents in the step-up transformer for solar photovoltaic application. The winding eddy losses and structural part losses are examined under a harmonic profile to compute the service losses and resultant thermal requirements.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"66 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125207321","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":"Comparative study of Boost and Zeta converters in DC microgrid applications","authors":"Jihen Arbi Ziani, M. J. Ghorbal, Sonia Moussa","doi":"10.1109/ENERGYCon48941.2020.9236476","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236476","url":null,"abstract":"Different DC/DC converter configurations are proposed in order to enhance power quality, improve power conversion efficiency, reliability and reduce size and complexity of these converters. For a better understanding of these converter topologies, operating in a residential standalone DC microgrid, this paper proposes a comparative study between two non-isolated converters working in boost mode, for a DC microgrid system composed of photovoltaic and wind sources, storage device, EV charger and residential local loads. The first converter is a conventional boost converter and the second one a Zeta converter. Both converters behave as Constant Power Loads (CPL). Main simulation results are given and discussed to show the performances of both topologies. Simulations were performed using PSIM software.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128438167","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":"Microservice-based Architecture of a Software as a Service (SaaS) Building Energy Management Platform","authors":"Ashraful Haque, Rasheq S. Rahman, S. Rahman","doi":"10.1109/ENERGYCon48941.2020.9236617","DOIUrl":"https://doi.org/10.1109/ENERGYCon48941.2020.9236617","url":null,"abstract":"The objective of this paper is to present a three layered micro service based approach to designing a Software as a Service (SaaS) based building energy management system (BEMS). The ”Core layer” is comprised of micro services performing core functionalities of the system, the ”API layer” serves as a gateway between the core system and front-end services. Finally the ”Service layer” provides the SaaS functionalities and applications experienced by the end-user. This paper presents a micro service based energy management system that can be effectively used by an end user to monitor and control electrical equipment and can be integrated into a large power system network. The proposed architecture has been used to develop a cloud based web interface and an iOS/android application of a building energy management system which is presented as a case study demonstrating performance and development improvements for a BEMS system developed using the micro service approach.","PeriodicalId":156687,"journal":{"name":"2020 6th IEEE International Energy Conference (ENERGYCon)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131930912","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}