scholarly journals Design of a thermoelectric energy source for water pumping applications: A case study in Sharjah, United Arab Emirates

2021 ◽  
Vol 11 (6) ◽  
pp. 4751
Author(s):  
Waleed Obaid ◽  
Abdul-Kadir Hamid ◽  
Chaouki Ghenai ◽  
Mamdouh El Haj Assad
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
United Arab Emirates ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Water Pumping ◽  
Three Phase ◽  
Increasing Demand ◽  
Te Modules

<p>There are many water pumping power systems that exist nowadays relying on conventional and renewable energy sources such as mechanical windmills, solar photovoltaic (PV) panels, wind turbines, and diesel generators. Few designs utilize thermoelectric modules for the purpose of enhancing the reliability and the performance of the system in order to provide water supply to isolated zones continuously. The use of thermoelectric (TE) modules is increasing due to their reduced prices and the possibility of using them in different applications depending on the required specifications of motors and other connected loads. This paper proposes a renewable energy system design for water pumping applications in Sharjah (Latitude 25.29°N and Longitude 55°E), United Arab Emirates. The system involves TE modules for operating the three-phase AC water pumping motor, voltage regulator, voltage boost converter, and three-phase power inverter while considering the changes of temperature values which affect the performance of the thermoelectric generator (TEG) modules. The aim is integrating TEG modules to cover the increasing demand of water in rural areas since rainy days in Sharjah are limited and the temperature is high. The performances of the proposed system will be demonstrated using Simulink simulations for the overall blocks of the proposed system.</p>

Valuing feedback mechanisms between water and energy systems in hydropower networks

2021 ◽  
Author(s):  
Rachel Koh ◽  
Jordan Kern ◽  
AFM Kamal Chowdhury ◽  
Stefano Galelli
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Renewable Energy Sources ◽  
Management Strategies ◽  
Energy System ◽  
Water Systems ◽  
Feedback Mechanism ◽  
Production Costs ◽  
Feedback Mechanisms ◽  
Modelling Framework

&lt;p&gt;Multi-sector modelling frameworks are fundamental platforms for exploring the complex interactions between the water and energy sectors. While acknowledging the pivotal role of hydropower within the energy system, it is essential to understand the feedback mechanisms between power and water systems to guide the design of hydropower operations and enhance water-energy management strategies. With this in mind, we developed a modelling framework hinged on a bidirectional coupling between water and power system models. We simulate the constraints imposed by water availability on grid operations as well as the feedback between the state of the energy and water systems. For example, the framework explicitly accounts for conditions of hydropower oversupply, during which part of the water could be stored in reservoirs or allocated to other sectors. The flexibility added to the system gives operators control over desired reservoirs, and allows the system to exploit the benefits warranted by a more efficient use of renewable energy. We evaluate the framework on a real-world case study based on the Cambodian grid, which relies on hydro, solar, and thermoelectric resources. In our analysis, we demonstrate that managing hydropower reservoirs with the feedback mechanism in mind allows us to improve system&amp;#8217;s performance&amp;#8212;evaluated in terms of power production costs and CO&lt;sub&gt;2&lt;/sub&gt; emissions. Overall, our work contributes a novel modelling tool for climate-water-energy nexus studies, working towards an optimal integration of hydropower and other renewable energy sources into power systems.&lt;/p&gt;

scholarly journals Effect of Energy Storages on Flexibility and Cyber Resilience of Electric Networks

2019 ◽  
Vol 217 ◽  
pp. 01006
Author(s):  
Irina Kolosok ◽  
Elena Korkina ◽  
Victor Kurbatsky
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Cyber Security ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Power Production ◽  
Energy System ◽  
Electric Power Systems ◽  
Energy Sources ◽  
Electric Networks

When planning and managing the present-day and future transformed electric power systems (EPS), such comparatively new properties as flexibility and cyber resilience shall be taken into account along with EPS conventional properties, such as Reliability, Security, Survivability, and Vulnerability. Large-scale introduction of renewable energy sources notably lowers the EPS flexibility. Installation of Energy Storages allows compensation of power production imbalance occurred when using renewable energy sources, which makes the energy system more robust, but lowers its cyber security. The paper considers the main performances and models of Energy Storages, their impact on flexibility and cyber security of electric networks; it also presents the technique for quantifying the flexibility of a network with Energy Storages, and identifies most promising directions of studies in this area.

scholarly journals Efficient Topology for DC-DC Boost Converter Based on Charge Pump Capacitor for Renewable Energy System

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Muhammad Zeeshan Malik ◽  
Vineet Tirth ◽  
Amjad Ali ◽  
Ajmal Farooq ◽  
Ali Algahtani ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Charge Pump ◽  
Energy Systems ◽  
Energy System ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Experimental Result ◽  
Renewable Energy Systems

In an attempt to meet the global demand, renewable energy systems (RES) have gained an interest in it due to the availability of the resources, especially solar photovoltaic system that has been an importance since many years because of per watt cost reduction, improvement in efficiency, and abundant availability. Photovoltaic system in remote and rural areas is very useful where a grid supply is unavailable. In this scenario, power electronic converters are an integral part of the renewable energy systems particularly for electronic devices which are operated from renewable energy sources and energy storage system (fuel cell and batteries). In this article, a new topology of charge pump capacitor (CPC) which is based on high voltage gain technique DC-DC boost converter (DCBC) with dynamic modeling is proposed. To testify the efficacy of the introduced topology, a prototype has been developed in a laboratory, where input was given 10VDC and 80VDC output voltage achieved at the load side. Furthermore, the experimental result shows that the voltage stress of MOSFET switches is very less in comparison with the conventional boost converter with the same parameters as the proposed converter.

scholarly journals Optimal Design of Independent Mini Hydro-photovoltaic-battery-diesel Hybrid Power System for Erin-ijesha Water Fall, Nigeria

2018 ◽  
pp. 1-11
Author(s):  
Olumuyiwa Oludare Fagbohun ◽  
Bankole Adebanji ◽  
Micheal O. Oke
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Simulation Models ◽  
Energy System ◽  
Solar Irradiation ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Better Than

In order to provide a sustainable energy system, especially in rural areas where grid electricity is not economically or geographically feasible, renewable energy sources appear to be one of the most effective solutions. However, the fluctuating nature and the high cost of kWhr units produced make the system unreliable and not easily affordable to the rural dwellers. This paper discussed the feasibility of renewable energy hybrid system and proposed a reliable independent Hybrid Power System (HPS) for rural application in Nigeria. Erin-Ijesha a typical rural village in Osun State, Nigeria was used as a case study. Solar irradiation, the hydro potential of the waterfall and load patterns were collected and analyzed for the study area. The electrical load for the village was estimated through the use of questionnaires. HOMER energy modeling software was used to develop the simulation models. The optimized results showed that mini-hydro-photovoltaic-battery combination with Cost of Energy, COE of $0.218/kWh is better than any other combinations considered in the work. It was revealed that purchasing electricity from the grid is better than any other hybrid combinations in terms of COE at $0.121/kWh. Nevertheless, from the result obtained, the HPS is considered cost-efficient and reliable in such rural areas especially where grid extension is geographically or economically infeasible.

scholarly journals Advanced energy management system based on PV and load forecasting for load smoothing and optimized peak shaving of islanded power systems

2019 ◽  
Vol 113 ◽  
pp. 03001
Author(s):  
Petros Iliadis ◽  
Stefanos Domalis ◽  
Athanasios Nesiadis ◽  
Konstantinos Atsonios ◽  
Spyridon Chapaloglou ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Energy Management ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
Energy System ◽  
Load Curve ◽  
Dynamic Simulations ◽  
Peak Shaving ◽  
Conventional Fuel

Photovoltaic (PV) systems constitute one of the most promising renewable energy sources, especially for warm and sunny regions like the southern-European islands. In such isolated systems, it is important to utilize clean energy in an optimal way in order to achieve high renewable penetration. In this operational strategy, a Battery Energy Storage System (BESS) is most often used to transfer an amount of the stored renewable energy to the peak hours. This study presents an integrated energy management methodology for a PV-BESS energy system targeting to make the load curve of the conventional fuel based units as smooth as possible. The presented methodology includes prediction modules for short-term load and PV production forecasting using artificial neural, and a novel, optimized peak shaving algorithm capable of performing each day’s maximum amount of peak shaving and smoothing level simultaneously. The algorithm is coupled with the overall system model in the Modelica environment, on the basis of which dynamic simulations are performed. The simulation results are compared with the previous version of the algorithm that had been developed in CERTH, and it is revealed that the system’s performance is drastically improved. The overall approach proves that in such islanding systems, a PV-BESS is a suitable option to flatten the load of the conventional fuel based units, achieve steadier operation and increase the share of renewable energy penetration to the grid.

scholarly journals Novel Conceptual Architecture for the Next-Generation Electricity Markets to Enhance a Large Penetration of Renewable Energy

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2605 ◽  
Author(s):  
Rodríguez-García ◽  
Ribó-Pérez ◽  
Álvarez-Bel ◽  
Peñalvo-López
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Electricity Markets ◽  
Smart Grids ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Consumer Participation ◽  
Energy Sources ◽  
Flexible Resources ◽  
Sustainable Energy System

A transition to a sustainable energy system is essential. In this context, smart grids represent the future of power systems for efficiently integrating renewable energy sources and active consumer participation. Recently, different studies were performed that defined the conceptual architecture of power systems and their agents. However, these conceptual architectures do not overcome all issues for the development of new electricity markets. Thus, a novel conceptual architecture is proposed. The transactions of energy, operation services, and economic flows among the agents proposed are carefully analysed. In this regard, the results allow setting their activities’ boundaries and state their relationships with electricity markets. The suitability of implementing local electricity markets is studied to enforce competition among distributed energy resources by unlocking all the potential that active consumers have. The proposed architecture is designed to offer flexibility and efficiency to the system thanks to a clearly defined way for the exploitation of flexible resources and distributed generation. This upgraded architecture hereby proposed establishes the characteristics of each agent in the forthcoming markets and studies to overcome the barriers to the large deployment of renewable energy sources.

scholarly journals Renewable Energy based Green Power Generation for Rural Electrification

2019 ◽  
Vol 9 (2) ◽  
pp. 3904-3911
Keyword(s):  
Developing Countries ◽  
Renewable Energy ◽  
Rural Areas ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Clean Energy ◽  
Energy System ◽  
Green Energy ◽  
Matlab Simulink

A major challenge for developing countries is access to electricity in rural area for accelerating its growth. There are significant impediment from the utilities to extend either improved service to the rural user or provide extended hours of supply through conventional grid supply. In developing countries, the most significant challenges are technologies used to upgrade and methods for electrification, which results in poor reliability of supply and high distribution losses, leading to hindering both economic and social development, so energy planners have suggested a hybrid energy system for the electrification of rural areas. This study investigates green energy based integrated generation for rural loads. This proposed system can orchestrate with the grid as well as with the renewable energy-based generator. The wind energy has a natural variance, to satisfy the energy demand during the nocturnal and overcast period a complementary renewable energy generator is critical, or an energy storage mechanism is needed to meet the energy demand. This type of pooled exploitation and interconnection is used to improve the reliability and resilience of the grids. The integration of distributed and clean energy resource like wind generation will reduce fossil fuel emissions and provides electricity in areas which are limitedly served by unified electrical infrastructure. Hence, it is expected to develop/modify technologies available for harnessing renewable energy sources. A MATLAB/Simulink is used to build a model for a grid-wind based integrated generation. Results obtained from MATLAB/Simulink are a close match with a practical system.

Programming Applications of Computer Aided Design and Layout of the Complex Solar Panels

2013 ◽  
Vol 411-414 ◽  
pp. 1840-1843 ◽  
Author(s):  
Andrey Volkov ◽  
Luiza Sukneva
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Computer Aided Design ◽  
Alternative Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Local Power ◽  
Solar Panels ◽  
Aided Design

The last few years, most of the western generating companies are investing a lot of money on projects related to alternative energy, including renewable energy sources (RES). Russia is also interested in the development of such projects. This is due to the fact that only 30-35% of the area covered by Russian Unified Energy System (UES), the rest is serviced by power plants operating in standalone mode, or local power systems [. For these areas the development of renewable energy is the most promising.

scholarly journals Integration of PV into the Sarajevo Canton Energy System-Air Quality and Heating Challenges

Energies ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 123
Author(s):  
Maja Muftić Dedović ◽  
Samir Avdaković ◽  
Adnan Mujezinović ◽  
Nedis Dautbašić
Keyword(s):  
Air Pollution ◽  
Renewable Energy ◽  
Solar Energy ◽  
Power Systems ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy System ◽  
Energy Sources ◽  
Production Forecast ◽  
Photovoltaic Power

The use of renewable energy sources increases the energy self-sustainability of cities, enabling citizens to reduce energy costs, which results in an increase in their standard of living. However, solar energy penetration in Bosnia and Herzegovina, and its capital Sarajevo, is not in line with the possibilities. Furthermore, the Sarajevo Canton is extremely polluted during the winter months because of the use of unacceptable heating fuel. The aim of this paper is to introduce photovoltaic power systems use in heating electrification system. In this paper AQI is calculated based on historical data and the hybrid model EMD-SARIMA for air pollution and a solar production forecast is presented. The methodology was tested in the Sarajevo Canton, taking into account 35,000 households. In order to ensure clean air, renewable electric energy use for household heating should be implemented. The widespread use of inefficient individual heating systems characterized by inefficient and expensive use of firewood and the use of coal in individual furnaces in populated areas are the main problems of internal and urban air pollution in Sarajevo Canton. In order to reduce energy poverty in Sarajevo Canton, the use of a floating photovoltaic power plant located on Lake Jablanica with a capacity of 30 MW and the solar prosumers with capacity of 115 MW to provide the 196 GWh necessary for heating electrification of 35,000 households is implemented in this paper. Finally, based on correlation between AQI forecast and solar production it was calculated that the values of the AQI, considering the application of solar energy during 150 days (five months) in one heating season, have significantly decreased. Also renewable energy sources have a very important role in reducing carbon dioxide (CO2) emissions into the atmosphere and reducing urban pollution. With this approach, households would be heated by renewable electricity, which would make Sarajevo a cleaner, smarter city.

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