2021 IEEE AFRICON最新文献_第4页

[AFRICON 2021 Front cover] [AFRICON 2021封面]

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570903

引用次数: 0

Circular Monopole Time Reversal Mirror for Microwave Wireless Power Transfer Applications 微波无线电力传输用圆形单极时间反转镜

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570867

Baidenger Agyekum Twumasi, Jia‐lin Li, Ebenezer Tawiah Ashong, S. Menanor

引用次数: 0

Investigating the Optimal Location of FACTS Devices in Power System Networks with Renewable Energy Sources considering uncertainty 考虑不确定性的可再生能源电网FACTS设备最优配置研究

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570923

W. Masamvu, O. Dzobo

{"title":"Investigating the Optimal Location of FACTS Devices in Power System Networks with Renewable Energy Sources considering uncertainty","authors":"W. Masamvu, O. Dzobo","doi":"10.1109/africon51333.2021.9570923","DOIUrl":"https://doi.org/10.1109/africon51333.2021.9570923","url":null,"abstract":"Reactive power flow analysis is an essential feature of power systems management. Controlling the amounts of reactive power flowing in and out of a power system network aids in keeping network voltage within acceptable limits. As the penetration of renewable energy sources (RESs) into the conventional electric grid increases, its effect on reactive power must be investigated. Research studies have shown that the uncertainty of RESs in power generation influences the reactive power of a power system network and consequently its overall transmission losses. This influence can be mitigated by installing FACTS devices in the power system network. In this research paper, a case study is presented to determine the best location of Flexible Alternating Current Transmission System (FACTS) devices in a power system network with RESs. The uncertainty of load and wind power generation is modelled using probabilistic scenario-based method. The IEEE 14 bus test network is used in the analysis. The objective function is solved using the particle swarm optimization (PSO) algorithm. The results show that when FACTS devices are strategically positioned in a power system network and uncertainty is considered, they have a significant influence on the overall transmission loss of the network.","PeriodicalId":170342,"journal":{"name":"2021 IEEE AFRICON","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131139693","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

Finite Element Design and Multi-objective Optimization of Four Pole Reluctance Motor Based on NSGA-II Intelligent Algorithm 基于NSGA-II智能算法的四极磁阻电机有限元设计与多目标优化

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570964

E. C. Abunike, O. Okoro, I. Davidson

引用次数: 3

Arc Parameters and Fault Impedance effect on the Gradient of Arc Current and Rate of Rise of Recovery Voltage in HVDC Circuit Breaker Using Mayr Arc Model. 用Mayr电弧模型研究了电弧参数和故障阻抗对高压直流断路器电弧电流梯度和恢复电压上升速率的影响。

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570846

Mohamed N. Elfikky, A. El-Morshedy, M. El-Shahat

引用次数: 0

Interference Management upon Collaborative Beamforming in a Wireless Sensor Network Monitoring System featuring Multiple Unmanned Aerial Vehicles 多无人机无线传感器网络监控系统协同波束形成干扰管理

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570907

Robert Macharia, K. Langat, P. Kihato

引用次数: 3

Wireless sensor network for water pipe corrosion monitoring 用于水管腐蚀监测的无线传感器网络

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9571008

Jacobus Kampman, Judas Masela, T. Joubert

{"title":"Wireless sensor network for water pipe corrosion monitoring","authors":"Jacobus Kampman, Judas Masela, T. Joubert","doi":"10.1109/africon51333.2021.9571008","DOIUrl":"https://doi.org/10.1109/africon51333.2021.9571008","url":null,"abstract":"The development of accurate corrosion models from corrosion data is a key requirement for well informed, preemptive actions towards extending the life of water infrastructure systems and reducing maintenance costs. This work presents the development of a custom proof-of-concept system implementation performing water corrosion monitoring using custom integrated corrosion sensing technologies powered by energy harvested through an in-line turbine generator. Implementing a star topology network of wireless corrosion sensor nodes distributed through water infrastructure systems offers an innovative solution for real-time and on-line monitoring of corrosion in water infrastructure systems. The wireless sensor network includes a wireless access point that provides an interface for retrieval of the corrosion data and a nexus for communications. A low-power bidirectional data transfer communications protocol using a form of time-division multiplex access is designed and implemented towards the optimisation of energy efficiency in the network. In an emulated pipeline field setup, the energy harvested and stored provides 125.80 mWh at 4.89 V for an in-pipe flow rate of 13.25 l/min, a typical value for municipal potable water supply in South Africa. The local node ER sensor can of measure changes in resistance values to an accuracy of 1% and will be usable in-system for a year. The access point implements EIS and LPR sensing. The extracted LPR value predicts a corrosion rate is 63.0 um/year in potable water.","PeriodicalId":170342,"journal":{"name":"2021 IEEE AFRICON","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114333283","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

A Nash Equilibrium Approach based on Differential Evolution to Probit Classification 基于差分进化的概率分类纳什均衡方法

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570848

R. Lung

引用次数: 0

Strategic Considerations of Industry 4.0 on Electronic Warfare using Technology Roadmaps 利用技术路线图对工业4.0电子战的战略考虑

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570921

Reeshen Reddy

{"title":"Strategic Considerations of Industry 4.0 on Electronic Warfare using Technology Roadmaps","authors":"Reeshen Reddy","doi":"10.1109/africon51333.2021.9570921","DOIUrl":"https://doi.org/10.1109/africon51333.2021.9570921","url":null,"abstract":"The Fourth Industrial Revolution or Industry 4.0 is an ongoing industrial revolution brought about by several emerging technologies expected to disrupt most business sectors. The effect of Industry 4.0 on the Electronic Warfare (EW) sector is strategically analyzed using Technology Road Mapping (TRM). An enhanced TRM is proposed based on the fast-start TRM method that incorporates an additional military capability layer to assess the linkage between market trends and products. The enhanced TRM is applied to analyze trends, capability, product, technology, research, and resources.The TRM-based strategic analysis reveals that Industry 4.0 will create both market pull and technology push driving the required characteristics of future EW Products. The market pull effects will drive future EW products to operate in a battlespace supporting Multi-Domain Operations (MDO) and Decision Centric Warfare (DCW). Industry 4.0 will drive commercial demand for spectrum resulting in contested, congested, and shared spectrum. Advances in smart industries will facilitate prototype warfare and the Internet of Military Things (IoMT), increasing ad-hoc bespoke non-traditional threats. Traditional threats will support DCW supported by several unmanned platform concepts.Technology push effects will advance key technologies that will shape future EW products such as Artificial Intelligence (A.I), Cyber-Physical Systems (CPS), Internet of Things (IoT), and Heterogeneous Processing. Finally, we conclude that the emergent properties of future EW products will be cognitive, distributed, networked, coordinated, multi-spectral, reduced size, weight, and power (SWAP), and modular using open architectures.","PeriodicalId":170342,"journal":{"name":"2021 IEEE AFRICON","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121793367","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

Small-Scale Farmers’ Awareness of e-Agriculture: A Pathway for Livelihood Development in Mkuranga, Tanzania 坦桑尼亚姆库兰加小农对电子农业的认识:一条生计发展之路

2021 IEEE AFRICON Pub Date : 2021-09-13 DOI: 10.1109/africon51333.2021.9570889

Ezra Misaki

{"title":"Small-Scale Farmers’ Awareness of e-Agriculture: A Pathway for Livelihood Development in Mkuranga, Tanzania","authors":"Ezra Misaki","doi":"10.1109/africon51333.2021.9570889","DOIUrl":"https://doi.org/10.1109/africon51333.2021.9570889","url":null,"abstract":"True agricultural development heavily relies on the promptness and relevance of the information accessed by small-scale farmers. In this regard, the application of e- Agriculture has a huge potential and pathway for agricultural development. e-Agriculture facilitates the exchange of farming information, ideas, and resources that if practiced can improve productivity and livelihood. Information exchanged improves small-scale farmers' decision-making in the agricultural value chain and hence pathway in welfare development. Despite this potentiality of e-Agriculture, the literature on the assessment of the level of farmers’ awareness of the technology in Mkuranga is scanty. Therefore, using a quantitative survey design to 63 small-scale farmers, focusing on the dimensions attitude, impact, social-cultural inhibitions of using mobile technology and competence in using mobile technologies, this study found out that 81.0 and 87.3 per cent of the respondents were unaware of the existence of e-Agriculture and information and communication technology projects in the study area. Further, 76.2 per cent of small-scale farmers studied opined that such projects could enhance agriculture in future if well established. The study also found that information and communication technologies such as M-Pesa, Tigo-Pesa, and AirTel money services positively impacted the farming business. The study also found out that the social-cultural aspect was not inhibiting the scaling up of technology usage in the rural sector. Moreover, it was found that the competencies of farmers were low, indicating the low awareness of the technology. Thus, the study's findings provide insights on enhancing the use of e-Agriculture in the farming business and policy formulation in the agricultural sector.","PeriodicalId":170342,"journal":{"name":"2021 IEEE AFRICON","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122527066","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