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2020 IEEE PES/IAS PowerAfrica最新文献

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Renewable energy access in Rwanda: Electricity Price Forecasting 卢旺达的可再生能源使用:电价预测
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219920
Wang Yongli, Jeanne baptiste Niyigena, Vedaste Ndayishimiye
{"title":"Renewable energy access in Rwanda: Electricity Price Forecasting","authors":"Wang Yongli, Jeanne baptiste Niyigena, Vedaste Ndayishimiye","doi":"10.1109/PowerAfrica49420.2020.9219920","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219920","url":null,"abstract":"Africa has very little electricity supply yet endowed with abundant renewable energy sources (RES). According to the 2014 World Bank series on energy and extractive industries, Rwanda has very low electrification levels. She has renewable energy potential for solar, hydro, methane gas, biomass, geothermal energy and currently investigations on wind is underway. Rwanda still boosts low access to electricity and high electricity prices compared to her neighboring countries. This paper proposes a new electricity pricing model that can be used to forecast the price in the Rwandan electricity market that is projected to be dominated with RES. In this research, the fuzzy logic model is applied to show that the price of electricity can be reduced to a significant extend.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122638734","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}
引用次数: 0
Design of Adaptive Overcurrent Protection Scheme for a Grid-Integrated Solar PV Microgrid 并网太阳能光伏微电网自适应过流保护方案设计
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219816
A. Ghoor, S. Chowdhury
{"title":"Design of Adaptive Overcurrent Protection Scheme for a Grid-Integrated Solar PV Microgrid","authors":"A. Ghoor, S. Chowdhury","doi":"10.1109/PowerAfrica49420.2020.9219816","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219816","url":null,"abstract":"In recent times the research, development and implementation of renewable energy sources in power networks have increased significantly due to their ability to provide clean, abundant energy as distribution generation units or microgrids operating in grid-connected and islanded modes. The integration of renewable energy sources into the power network has given rise to certain challenges such as the change in minimum fault current level when the microgrid becomes isolated from the main grid (islanding). The main focus of this research is the protection challenge caused by drastic change in fault current in a solar PV microgrid when it transfers from grid-connected to islanded operation and how this challenge can be addressed by adaptive protection. Hence, this paper deals with the design of an adaptive overcurrent protection scheme as well as the coordination of primary and backup relays for faults occurring on the microgrid.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123927075","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}
引用次数: 3
Impact of Electromobility to the Power Distribution System 电动汽车对配电系统的影响
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219914
S. Skok, Ladislav Havas, Vedran Radosevic, Matej Cvitanović
{"title":"Impact of Electromobility to the Power Distribution System","authors":"S. Skok, Ladislav Havas, Vedran Radosevic, Matej Cvitanović","doi":"10.1109/PowerAfrica49420.2020.9219914","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219914","url":null,"abstract":"For many years, the global automotive industry has been systematically redirecting the development of conventional vehicle propulsion systems to new ones. Electric vehicles (EV) represents a new concept of urban mobility and is one of the most efficient and environmentally friendly individual transport modes, especially if electricity is generated from renewables (RES). The greater use of EVs in transport requires investment in the development and construction of infrastructure - the electricity grid and charging stations, as well as the development of regulatory and market policies. One of the most important areas of technology research and development is an advanced power grid, which ultimately boils down to integrating RES and EVs into the power system to maintain its reliability and stability. Due to all of the above, it is necessary to consider the impact of EV charging stations on the electricity distribution network in the light of different scenarios of electromobility.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124210265","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}
引用次数: 1
Energy Efficiency of Sustainable Renewable Microgrids for Off-Grid Electrification 离网电气化可持续可再生微电网的能源效率
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219958
O. Babayomi, Tobi Shomefun, Zhenbin Zhang
{"title":"Energy Efficiency of Sustainable Renewable Microgrids for Off-Grid Electrification","authors":"O. Babayomi, Tobi Shomefun, Zhenbin Zhang","doi":"10.1109/PowerAfrica49420.2020.9219958","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219958","url":null,"abstract":"Energy efficiency (EE) has a key role to play in the rate of electrification towards decreasing energy poverty around the world. It has benefits to electrified urban and rural areas, as well as off-grid communities. Therefore, in this paper, we explore using empirical data, the impact of EE (as a form of demand-side management) on the adoption of renewable microgrids for off-grid electrification in Sub-Saharan Africa. The study shows that improvements in the energy efficiency of commercial and residential appliances will optimize the availability of existing power resources, creating more access to underserved areas. An EE-centric power distribution model will also lead to higher value per energy served to under-served communities through renewable microgrids.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128568333","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}
引用次数: 5
In-Vehicle Traffic Accident Detection and Alerting System Using Distance-Time Based Parameters and Radar Range Algorithm 基于距离-时间参数和雷达距离算法的车载交通事故检测与预警系统
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219812
Lukman Adewale Ajao, B. Abisoye, I. Jibril, Udeme Monday Jonah, J. Kolo
{"title":"In-Vehicle Traffic Accident Detection and Alerting System Using Distance-Time Based Parameters and Radar Range Algorithm","authors":"Lukman Adewale Ajao, B. Abisoye, I. Jibril, Udeme Monday Jonah, J. Kolo","doi":"10.1109/PowerAfrica49420.2020.9219812","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219812","url":null,"abstract":"The high proportion number of citizen death rates with little or severe sustained injury is commonly recorded from road-traffic accidents (RTA). The effect of a road traffic accident is brutal, and it usually leads to mortality and deformity in human physiological anatomy. This work aims to develop an embedded in-vehicle automatic accident detection and barrier detection notification system. A radar range algorithm (RRA) is proposed for the barrier detection on the road before collision occurrence. Also, distance-time based parameters (DTBP) algorithm was developed for the detection of accident geo-location coordinates using the Haversine formula. An Internet of Things (IoT) approach was adopted by integrating the wireless communication devices and sensors embedded into a single chip for the design purposes. This developed system alerts the driver before collision occurrence and eliminates the delay time between accident occurrence and emergency personnel arrival. The use of this system will save more lives from road hazards and decrease mortality.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"443 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115938932","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}
引用次数: 3
Modeling the Impact of Power Generation on the Water Sector in the North, Eastern and Central African Power Pools 模拟发电对北部、东部和中部非洲电力池供水部门的影响
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219883
Matija Pavičević, S. Quoilin
{"title":"Modeling the Impact of Power Generation on the Water Sector in the North, Eastern and Central African Power Pools","authors":"Matija Pavičević, S. Quoilin","doi":"10.1109/PowerAfrica49420.2020.9219883","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219883","url":null,"abstract":"This paper presents the results of a new open-source modelling framework for three African power pools (Central, Eastern and North). The proposed model provides insights regarding the power generation, system adequacy, total operational costs, freshwater consumption and withdrawals, and CO2 emissions linked to the power sector. Water-energy nexus indicators such as water exploitation index, water withdrawal and consumption related to power generation are computed for the three power pools and for representative power plants. They indicate that the analyzed power pools are strongly dependent on the availability of water resources: the variation between unusually wet and unusually dry years significantly impacts the final energy mix, the total operational costs, the total carbon emissions and increases the water stress index of the system. The relative impact of water consumption over water withdrawals is low because of the predominance of once-through cooling systems in the most vulnerable countries.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114181343","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}
引用次数: 2
Virtual-Flux based Active Power Filter for Power Quality Improvement 基于虚拟磁链的电能质量改进有源滤波器
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219949
F. Mulolani
{"title":"Virtual-Flux based Active Power Filter for Power Quality Improvement","authors":"F. Mulolani","doi":"10.1109/PowerAfrica49420.2020.9219949","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219949","url":null,"abstract":"This paper presents the application of virtual-flux based control to a shunt active power filter (APF). The shunt active power filter is controlled using virtual-flux based direct power control with space vector modulation (DPC-SVM). The control is implemented with a virtual-flux estimator in place of the grid voltage sensors. The instantaneous power theory is used to estimate the required compensation reactive power, and to estimate the controlled powers of the APF. The virtual-flux estimation is performed using the second order generalized integrator (SOGI), and a virtual-flux phase-locked loop ensures robust grid synchronization of the APF. Simulation results show that when the APF is connected in parallel with a diode rectifier, it improves the quality of the current drawn from the source. The total harmonic distortion (THD) of the source current improved from 26.75% without the APF to 8.95% with the APF.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126962492","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}
引用次数: 1
An Adaptive Hybrid Meta-heuristic Approach for Transmission Constrained Multi-objective GEP 传输约束多目标GEP的自适应混合元启发式方法
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219969
Julius Kilonzi Charles, Peter Musau Moses, J. M. Mbuthia
{"title":"An Adaptive Hybrid Meta-heuristic Approach for Transmission Constrained Multi-objective GEP","authors":"Julius Kilonzi Charles, Peter Musau Moses, J. M. Mbuthia","doi":"10.1109/PowerAfrica49420.2020.9219969","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219969","url":null,"abstract":"Meta-heuristic methods are characterized by their combination of both mathematical optimizations with heuristic concepts. The combination of both concepts helps to suppress the limitations associated with either deterministic or heuristic approaches while taking advantage of their individual strengths. This paper presents a novel Adaptive Hybrid Meta-heuristic approach for solving the highly dimensional and complex Transmission Constrained Multi-Objective Generation Expansion Planning (TC-MOGEP). The algorithm combines both evolutionary and swarm intelligence meta-heuristic techniques in its formulation. The proposed algorithm is tested on the IEEE six-bus test system in three scenarios. In Scenario A, both system contingencies and reserve margin requirements are ignored, Scenario B takes into account N-1 contingency while ignoring reserve margin requirements and Scenario C considers both N-1 contingency and reserve margin requirements. The obtained results are compared to those obtained by other researchers in the area. The proposed adaptive hybrid metaheuristic approach gives better expansion plans for most of the considered system load levels; thus it can be confidently applied in solving the power system expansion optimization problems.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121915935","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}
引用次数: 0
Performance and Cost analysis for a University based Solar PV installation 某高校太阳能光伏装置的性能与成本分析
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219898
S. Ntsaluba, Isaac Dlamini
{"title":"Performance and Cost analysis for a University based Solar PV installation","authors":"S. Ntsaluba, Isaac Dlamini","doi":"10.1109/PowerAfrica49420.2020.9219898","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219898","url":null,"abstract":"This study presents a performance and cost analysis for PV installation on certain buildings of academic institutions. The paper focuses and outlines three major discussions, the first being an energy usage analysis for selected buildings, followed by a cost analysis and carbon emissions reduction analysis. A case study is conducted using one month's energy data from the University of Johannesburg. The results of this study showed 25% reduction in energy usage cost, a 27% reduction on maximum demand cost and emissions reduction, highlighting the importance of integrating fossil-fuel powered energy sources with renewable energy sources.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121720359","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}
引用次数: 2
Progress in grid interconnection in East Africa: Challenges, Experiences and Opportunities 东非电网互联的进展:挑战、经验和机遇
2020 IEEE PES/IAS PowerAfrica Pub Date : 2020-08-01 DOI: 10.1109/PowerAfrica49420.2020.9219924
Denis Juma, J. Munda, Charles Kabiri
{"title":"Progress in grid interconnection in East Africa: Challenges, Experiences and Opportunities","authors":"Denis Juma, J. Munda, Charles Kabiri","doi":"10.1109/PowerAfrica49420.2020.9219924","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219924","url":null,"abstract":"Inter-regional and transnational grid interconnection is an essential attribute for today's clean energy sector advancement. This paper examines the East African electrical energy supply structure, regional load demand endowment and power supply status. The study examines the progress achieved in integrating the East Africa power grids as well as the future possibilities for a more integrated network across the region that could form a major artery for the Cairo-Cape interconnection. The study also examines the benefits that could be realized such as in enabling individual countries achieve energy transition, increased electricity supply, enhanced energy security through supply diversification, cost reduction as well as allow for increased utilization of intermittent renewable energy through optimizing generation across a pooled region.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121751201","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}
引用次数: 0
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