scholarly journals Challenges of mastering the energy sector and sustainable solutions for development in Africa

2019 ◽  
Vol Volume 30 - 2019 - MADEV... ◽  
Author(s):  
J. Nguimfack-Ndongmo ◽  
A. Muluh Fombu ◽  
L. Sonfack ◽  
R. Kuaté-Fochie ◽  
G. Kenné ◽  
...  
Keyword(s):  
Power Flow ◽  
Applied Mathematics ◽  
Clean Energy ◽  
Energy System ◽  
Energy Sector ◽  
Energy Potential ◽  
Power Flow Control ◽  
Sustainable Solutions ◽  
Energy Needs ◽  
Flexible Alternating Current Transmission

International audience The African continent is currently experiencing a period of sustained economic and population growth that requires massive investment in the energy sector to effectively meet the energy needs in the context of sustainable development. At the same time, COP21 agreements now call all the states to use clean energy. Yet a great energy potential is available, but the electrification rate of the continent currently accounts for only 3% of the world's energy production. Also, the demand for both quality and quantity energy requires the mastery of applied mathematical tools to efficiently solve problems arising in the energy system. In this article, the major problems affecting the energy sector in Africa are identified, some solutions to the challenges are recalled and some new ones are proposed, with emphasis given to applied mathematics tools as well as energy policy. As case studied, a new control strategy of Static Synchronous Series Compensator (SSSC) devices-which are modern power quality Flexible Alternating Current Transmission Systems (FACTS)-is proposed for Power Flow Control. Le continent africain connait actuellement une période de croissance économique et dé-mographique soutenue qui requiert un investissement massif dans le secteur de l'énergie en vue d'un développement durable. Dans le même temps, les accords de la COP21 interpellent désor-mais les états à recourir aux énergies propres. Malgré son potentiel énergétique énorme, le taux d'électrification en Afrique reste très faible (3%) notamment au sud du sahara. D'autre part, la de-mande d'énergie en qualité et en quantité nécessite un recours aux outils mathématiques modernes pour résoudre les problèmes des réseaux électriques. Dans cet article, les principaux problèmes af-fectant le secteur de l'énergie en Afrique sont identifiés, certaines solutions aux défis de la maîtrise de ce secteur sont rappelées et de nouvelles solutions sont proposées, en mettant l'accent sur les outils de mathématiques appliquées ainsi que sur la politique énergétique. A titre d'illustration des nouvelles solutions mathématiques, une nouvelle stratégie de contrôle du compensateur statique, synchrone et série (SSSC) qui fait partie des systèmes modernes et flexible de transmission du courant alternatif (FACTS) est proposée pour le contrôle du flux de puissance.

scholarly journals URGENSI PENGATURAN PENGEMBANGAN ENERGI TERBARUKAN SEBAGAI WUJUD MENDUKUNG KETAHANAN ENERGI NASIONAL

2021 ◽  
Vol 3 (1) ◽  
pp. 18-24
Author(s):  
Faisal Faisal
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Oil And Gas ◽  
Energy System ◽  
Energy Sector ◽  
Energy Needs ◽  
National Energy Security ◽  
Catch Up ◽  
The Government ◽  
Oil And Gas Sector

Energy sovereignty in Indonesia is experiencing problems with a decline in national energy security. Indonesia's energy system is currently facing serious challenges. The imbalance in the condition of energy supplies with national energy needs, especially the oil and gas sector and efforts to fulfill national energy needs in a sustainable manner are the main problems of this nation in the energy sector. It is absolutely necessary to have strategic efforts in the field of creating new and renewable energy. Although the government has issued various policies to catch up, but to realize national energy security, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security. As for the formulation of the problems raised in this study are: support national energy security in Indonesia? 2) what is the urgency of regulating the development of renewable energy as a form of supporting national energy security? This research will use normative juridical research and supported by empirical juridical research so that it will be able to see the conditions of developing renewable energy as a form of supporting national energy security in Indonesia. To realize this, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security.

Linking Stakeholder Engagement to Multiple Future Policies in the European Energy Sector

2020 ◽  
pp. 383-392
Author(s):  
Charikleia Karakosta ◽  
Aikaterini Papapostolou
Keyword(s):  
Methodological Approach ◽  
Clean Energy ◽  
Energy System ◽  
Energy Sector ◽  
Consultation Process ◽  
Stakeholder Consultation ◽  
Alternative Pathways ◽  
Academic Level ◽  
Energy Innovation ◽  
The Impact

European energy, innovation, and climate challenges define the direction of a future European energy system; however, the specific technology pathways are policy sensitive and need careful comparative evaluation. Stakeholder dialogue or exchange is a very enriching experience, as it promotes the communication of different and sometimes controversial ideas, approaches, and expectations. The chapter introduces stakeholder consultation process, so as to analyse the impact of multiple future pathways and policies in the European energy sector. This will be done through a concrete methodological approach based on an institutionalised consultation process of the relevant stakeholders at policy, industry, and research/academic level. Key findings as regards the critical uncertainties affecting the future energy sector reveal that the level of cooperation and the level of decentralisation may play a crucial role in the design of alternative pathways towards a clean energy system.

Renewable energy potential for sustainable development in Afghanistan

2020 ◽  
pp. 8-15
Author(s):  
Ahmad Khalid Slimankhil ◽  
Mohammad Abed Anwarzai ◽  
Mir Sayed Danish ◽  
Mikaeel Ahmadi ◽  
Mohammad Hamid Ahadi
Keyword(s):  
Sustainable Development ◽  
Developing Countries ◽  
Renewable Energy ◽  
Sustainable Energy ◽  
Clean Energy ◽  
Energy Sector ◽  
Energy Access ◽  
Energy Potential ◽  
Geothermal Resources ◽  
The Sustainable Development

Afghanistan is one of the developing countries in South Asia with an enormous renewable and nonrenewable energy resources. Since 1893, utilization of secondary (modern) form of energy in Afghanistan has been pursued. The trends of sustainable energy provision have been reinforced after the post-conflicts in Afghanistan. The Sustainable Development Goal-7 (affordable and clean energy access) encourages nations to assess their resource development of renewable, affordable, and accessible energy. Unlike many developing countries that struggle to identify domestic sources of clean, sustainable energy, Afghanistan has hydro, solar, wind, and geothermal resources as assets. This literature review analyzes Afghanistan’s potential for renewable energy to identify obstacles and challenges like security, economics, and technology. Using surveys conducted by national and international organizations. This research evaluates Afghanistan’s progress in meeting SDG-7, identifies the main barriers for renewable energy development, and offers recommended solutions. This study reveals the facts of energy sector development in Afghanistan to enable students, researchers, and practitioners with an overview of the current situation and future direction of the energy sector. Also, this study offers a concise outlook for energy sector investors and donors at the national and international stages.

scholarly journals Power flow management of triple active bridge for fuel cell applications

2019 ◽  
Vol 10 (2) ◽  
pp. 672
Author(s):  
Nageswara Rao Kudithi ◽  
Sakda Somkun
Keyword(s):  
Fuel Cell ◽  
Power Flow ◽  
Clean Energy ◽  
Energy System ◽  
Stable Operation ◽  
Phase Margin ◽  
Process Gain ◽  
Signal Modelling ◽  
Power Generation Systems ◽  
Extended Symmetrical Optimum Method

<p>The power conditioning circuits which are used in fuel cell systems should carefully be designed to prolong the life span of the system, for the reason of the dynamic nature, such that the unexpected and extreme changes in load decreases the life of the fuel cells. This paper presents the triple active bridge (TAB) and it’s average small signal modelling, which is used for design of the system controllers for stable operation. The extended symmetrical optimum method is used for realized the proportional integral (PI) controller, to control the output/Load voltage and power flow in the fuel cell/Source with a guaranteed minimum phase margin for the system with a variable process gain in addition to other accepted desired performances. This method ensures the maximum phase margin at a minimum required value at the desired gain crossover frequency with a compromise between system’s peak overshoot, rise time and settling time. This model and this approach helps in designing TAB suitable for healthy and uninterrupted fuel cell power generation systems as a part of a renewable /clean energy system. MATLAB/Simulink is used to simulate the proposed controllers with TAB.</p>

scholarly journals Cybersecurity challenges in Poland in the face of energy transition

2020 ◽  
Vol 18 (1) ◽  
pp. 141-159
Author(s):  
Anna Kucharska
Keyword(s):  
Smart Grids ◽  
Structural Changes ◽  
Essential Element ◽  
Energy Transition ◽  
Direct Consequence ◽  
Clean Energy ◽  
Energy System ◽  
Energy Sector ◽  
Main Question ◽  
Smart Meters

The transformation of the energy sector is one of today’s global megatrends. The main aim of this process includes shifting energy production to renewable sources, decarbonizing the economy, and improving energy efficiency, especially in the most energy-intensive sectors. These changes lead the energy sectors of different states to ensure security and maintain environmental protection in order to guarantee the civilization’s progressive development. One of the tools for the implementation and development of a new model of the energy sector is digitization, which is a direct consequence of the increasing complexity of the energy system. Digitization is an essential element in the management of smart grids and smart meters and for controlling the entire energy system, as well as guaranteeing fair distribution. The digitization process integrates the state energy system; however, it also increases its vulnerability to potential cyber-threats. The aim of this paper is to analyze the cybersecurity challenges facing the Polish power sector in light of the energy transition policy promoted in the EU with a particular focus on the latest legislation presented in the Clean Energy Package. The Polish energy sector is on the verge of structural changes; therefore the main question is: How to implement them to avoid errors? The paper provides a glimpse into the most venerable areas, which should be taken into consideration by political decision-makers.

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