scholarly journals Application of Smart Grid and Edge Computing Technologies to Improve The Operational Efficiency of The Supply Chain and Logistics Processes

2021 ◽  
Vol 9 (2) ◽  
pp. 89-96
Author(s):  
Suresh Nanda Kumar

Energy demand is growing at a very rapid pace worldwide. Conventional energy sources are being replaced steadily by non-conventional sources such as renewable energy sources like wind, solar, geothermal, hydroelectric etc. This rapid growth in demand for energy compounded by the depletion of conventional, non-renewable energy sources in recent years has brought about a transformation in the energy sector. Households, manufacturers and other consumers of energy can now both produce and consume energy. The flow of energy is bidirectional. They can also either store the surplus power for future use or send it to the grid for sharing with other users of energy. As a result of this transformation, the smart grid came into existence where the producers and the consumers of energy can be the same person and contribute to the supply of energy to the grid.

2013 ◽  
Vol 26 (3) ◽  
pp. 82-102 ◽  
Author(s):  
Lea Schick ◽  
Brit Ross Winthereik

Revamping the electricity infrastructure to allow for an increased usage of renewable energy sources is a matter of concern in many parts of the world. In Europe, a major policy question is how to move energy demand to periods with surplus of renewable energy in the grid. In this paper we follow prominent Danish and German delegates working towards realizing the intelligent electricity infrastructure commonly known as ‘smart grid’ envisioned to be a significant actor in the management of renewable energy. Starting out with a view on smart grid that recognizes it as a partially existing object, we attend to its gradual emergence by focusing on two models and a metaphor evoked to represent smart grid development. As we contrast and compare these representational objects, smart grid emerges as a potential ‘thing’. Following Latour a ‘thing’ is a gathering of many actors agreeing and disagreeing about what the thing ‘is’ (its ontological status). In the paper we show how smart grid innovation both emerges – and fails to emerge – as an object of relevance to a broader public. Even though users play an important role in the imagination of experts, a gap remains between the experts and those who smart electricity infrastructures will come to affect. Concerned with this gap we argue that Science and Technology Studies must pay attention to how smart grid development gets constructed as a public problem in specific imaginative spaces of opportunity and closure.


2019 ◽  
Vol 8 (2S8) ◽  
pp. 1234-1238

Day by day the non-renewable sources of power are getting depleted. Due to higher demands of energy the necessity of such sources is becoming more important in the field of electrical power according to the estimates of power sector the usage of renewable component has increased by 9% w.r.t to 2013. Even though non-renewable sources capacity increasing day by day the complexity of the power system network increasing which result in mismatch between voltage and power in electrical network. By using smart grid technology, we can minimize the unequal effect of voltage and power in the domain of renewable energy source. Smart grid technology uses digital transformation of electrical parameter to central coordination center at high sample rate, which uses effective and reliable operation in managing energy demand of renewable energy sources


Author(s):  
Bisma Imtiaz ◽  
Imran Zafar ◽  
Cui Yuanhui

Due to the rapid increase in energy demand with depleting conventional sources, the world’s interest is moving towards renewable energy sources. Microgrid provides easy and reliable integration of distributed generation (DG) units based on renewable energy sources to the grid. The DG’s are usually integrated to microgrid through inverters. For a reliable operation of microgrid, it must have to operate in grid connected as well as isolated mode. Due to sudden mode change, performance of the DG inverter system will be compromised. Design and simulation of an optimized microgrid model in MATLAB/Simulink is presented in this work. The goal of the designed model is to integrate the inverter-interfaced DG’s to the microgrid in an efficient manner. The IEEE 13 bus test feeder has been converted to a microgrid by integration of DG’s including diesel engine generator, photovoltaic (PV) block and battery. The main feature of the designed MG model is its optimization in both operated modes to ensure the high reliability. For reliable interconnection of designed MG model to the power grid, a control scheme for DG inverter system based on PI controllers and DQ-PLL (phase-locked loop) has been designed. This designed scheme provides constant voltage in isolated mode and constant currents in grid connected mode. For power quality improvement, the regulation of harmonic current insertion has been performed using LCL filter. The performance of the designed MG model has been evaluated from the simulation results in MATLAB/ Simulink.


Author(s):  
Hanna Irena Jędrzejuk

This chapter describes a general issue of selecting renewable energy sources (RES) and technical systems. To achieve the nearly zero-energy building (nZEB) standard, application of an RES (e.g., solar, wind, geothermal, hydropower, and biomass energy) is necessary. Each type of RES has specific characteristics and can be used to produce electricity and/or heat in certain systems. A short review of various systems using renewable energy sources is presented. To find the required and satisfactory solution that guaranties meeting the nZEB standard, an analysis must be carried out considering a number of aspects: local availability, structure and time-dependence of energy demand, building construction, economic conditions, legal regulations, and specific requirements. Finally, two examples of modernisation towards the nZEB standard are included.


Author(s):  
Jianhui Wong ◽  
Yun Seng Lim

Electrical grid is no longer featured in a conventional way nowadays. Today, the growing of new technologies, primarily the distributed renewable energy sources and electric vehicles, has been integrated with the distribution networks causing several technical issues. As a result, the penetration of the renewable energy sources can be limited by the utility companies. Smart grid has been emerged as one of the solutions to the technical issues, hence allowing the usage of renewable and improving the energy efficiency of the electrical grid. The challenge is to develop an intelligent management system to maintain the balance between the generation and demand. This task can be performed by using energy storage system. As part of the smart grid, the deployment of energy storage system plays a critical role in stabilizing the voltage and frequency of the networks with renewable energy sources and electric vehicles. This book chapter illustrates the revolution and the roles of energy storage for improving the network performance.


Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2051 ◽  
Author(s):  
Renato Lemm ◽  
Raphael Haymoz ◽  
Astrid Björnsen Gurung ◽  
Vanessa Burg ◽  
Tom Strebel ◽  
...  

The transition towards a reliable, sustainable, low-carbon energy system is a major challenge of the 21st century. Due to the lower energy density of many renewable energy sources, a future system is expected to be more decentralized, leading to significant changes at the regional scale. This study analyzes the feasibility of the energy transition in the Swiss canton of Aargau as an illustrative example and explores different strategies to satisfy the local demand for electricity, heat, and fuel by 2035. In particular, we assess the potential contribution of biomass. Four scenarios demonstrate what energy demand proportion could be covered by bioenergy if different priorities were given to the provision of heat, electricity, and fuel. The impact of improved conversion technologies is also considered. The results show that the sustainably available renewable energy sources in canton Aargau will probably not be sufficient to cover its forecasted energy demand in 2035, neither with present nor future biomass conversion technologies. At best, 74% of the energy demand could be met by renewables. Biomass can increase the degree of autarky by a maximum of 13%. Depending on the scenario, at least 26–43% (2500–5700 GWh) of total energy demand is lacking, particularly for mobility purposes.


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