scholarly journals Resilience in an Evolving Electrical Grid

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 694
Author(s):  
Phylicia Cicilio ◽  
David Glennon ◽  
Adam Mate ◽  
Arthur Barnes ◽  
Vishvas Chalishazar ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Network Evolution ◽  
Energy Sources ◽  
Physical Analysis ◽  
Self Healing ◽  
Ongoing Research ◽  
Electrical Grid ◽  
Electrical Grids

Fundamental shifts in the structure and generation profile of electrical grids are occurring amidst increased demand for resilience. These two simultaneous trends create the need for new planning and operational practices for modern grids that account for the compounding uncertainties inherent in both resilience assessment and increasing contribution of variable inverter-based renewable energy sources. This work reviews the research work addressing the changing generation profile, state-of-the-art practices to address resilience, and research works at the intersection of these two topics in regards to electrical grids. The contribution of this work is to highlight the ongoing research in power system resilience and integration of variable inverter-based renewable energy sources in electrical grids, and to identify areas of current and further study at this intersection. Areas of research identified at this intersection include cyber-physical analysis of solar, wind, and distributed energy resources, microgrids, network evolution and observability, substation automation and self-healing, and probabilistic planning and operation methods.

Revolution of Energy Storage System in Smart Grids

2016 ◽  
pp. 181-206
Author(s):  
Jianhui Wong ◽  
Yun Seng Lim
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Smart Grid ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Sources ◽  
Electrical Grid ◽  
Technical Issues

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.

Revolution of Energy Storage System in Smart Grids

2017 ◽  
pp. 1669-1694
Author(s):  
Jianhui Wong ◽  
Yun Seng Lim
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Smart Grid ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy Storage System ◽  
Energy Sources ◽  
Electrical Grid ◽  
Technical Issues

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.

scholarly journals Risks of switching to renewable energy sources

2021 ◽  
Vol 101 ◽  
pp. 01010
Author(s):  
E.S. Romanova ◽  
A.A. Masalkova
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Energy Transition ◽  
Energy Sources ◽  
International Treaties ◽  
Carbon Dioxide Co2

This research work is devoted to the issue of studying the key risks of switching to renewable energy sources. The relevance of the topic of work is determined by the fact that, according to climatologists [5], climate change, which has a negative impact on the environment, is caused by the emission of greenhouse gases such as carbon dioxide (CO2). For this reason, measures to prevent or reduce greenhouse gas emissions are at the heart of the energy transition. International treaties such as the Kyoto Protocol and the Paris Agreement lay the foundations for global action to combat climate change and implement a fourth energy transition. The energy transition is characterized by a number of incentives and barriers. Despite the fact that there are many scenarios for the development of the global energy sector by 2050, the expected transformations of the energy market lead to a significant redistribution of the ratio of the shares of hydrocarbon sources and renewable energy sources [16]. The trend towards fossil fuels is on the rise. These transformations in the market are determined not only by the climate agenda, but also by the concept of sustainable economic development.

scholarly journals The Present Trends and Challenges in Renewable Energy Sources Connected to a Grid

2019 ◽  
Vol 8 (12) ◽  
pp. 3118-3130
Keyword(s):  
Renewable Energy ◽  
Smart Grids ◽  
Renewable Energy Sources ◽  
Power Grids ◽  
Energy Sources ◽  
Self Healing ◽  
Monitoring And Control ◽  
Decentralized Generation ◽  
Policy Interventions ◽  
And Control

Smart grids are alterations of the traditional power grids where the monitoring and control of the electricity system are faster and easier than before due to their automated self-healing and sensing processes. However, their primary target is two-way communication, which is only feasible if the decentralized generation of power will exist alongside the national grid. In that light, this report first gives a comprehensive description of smart grids and their history. Afterward, it examines the two major groups of challenges to the penetration of the technology; that is technical and regulatory, policy, and economic challenges. Case studies from the U.S., Canada, Korea, California, and Sweden are used to illustrate the discovered trends and challenges to renewable energy sources connected to grids and demonstrate possible solutions. The research design employed in the study is diagnostic since the problem, its history, and solutions are all reviewed in the report. The study's recommendation is policy interventions to solve both the regulatory and technical challenges to the proliferation of gridded renewables.

scholarly journals Possibilities of Powering Military Equipment Based on Renewable Energy Sources

2022 ◽  
Vol 12 (2) ◽  
pp. 843
Author(s):  
Mariusz Frączek ◽  
Krzysztof Górski ◽  
Leszek Wolaniuk
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Energy Sources ◽  
Power Sources ◽  
Radio Stations ◽  
Military Equipment ◽  
National Power ◽  
The Republic ◽  
The Individual

Nowadays, the land forces of the Republic of Poland use mainly two forms of powering their equipment and military devices: by connecting various devices to the national power grid and by diesel-electric generators of individual vehicles. With the first solution, power cuts have to be taken into account. In the latter case, it is necessary to ensure large fuel deliveries on a timely manner. It entails a search for new solutions able to effectively meet the needs of an individual soldier and command posts. It has inspired engineers to work on renewable energy sources. This review paper presents a concept for photovoltaic cells usage and a concept for air turbines used to charge electric power sources of different powers for the individual needs of soldiers and command posts. Examples of solutions for mobile energy systems are presented in the research work. They were verified in terms of their suitability for military applications. The concept of using a personal device to supply power for charging batteries and elements of individual soldier equipment, including low-power radio stations, has been presented as well.

scholarly journals Real-Time Energy Management for DC Microgrids Using Artificial Intelligence

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5307 ◽  
Author(s):  
Aiman J. Albarakati ◽  
Younes Boujoudar ◽  
Mohamed Azeroual ◽  
Reda Jabeur ◽  
Ayman Aljarbouh ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Management ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Energy Management Strategy ◽  
Renewable Sources ◽  
Point Tracking ◽  
Development Framework ◽  
Electrical Grids ◽  
Multi Agent

Microgrids are defined as an interconnection of several renewable energy sources in order to provide the load power demand at any time. Due to the intermittence of renewable energy sources, storage systems are necessary, and they are generally used as a backup system. Indeed, to manage the power flows along the entire microgrid, an energy management strategy (EMS) is necessary. This paper describes a microgrid energy management system, which is composed of solar panels and wind turbines as renewable sources, Li-ion batteries, electrical grids as backup sources, and AC/DC loads. The proposed EMS is based on the maximum extraction of energy from the renewable sources, by making them operate under Maximum Power Point Tracking (MPPT) mode; both of those MPPT algorithms are implemented with a multi-agent system (MAS). In addition, management of the stored energy is performed through the optimal control of battery charging and discharging using artificial neural network controllers (ANNCs). The main objective of this system is to maintain the power balance in the microgrid and to provide a configurable and a flexible control for the different scenarios of all kinds of variations. All the system’s components were modeled in MATLAB/Simulink, the MAS system was developed using Java Agent Development Framework (JADE), and Multi-Agent Control using Simulink with Jade extension (MACSIMJX) was used to insure the communication between Simulink and JADE.

OBJECTIVES AND STRATEGY FOR MANAGING THE CONFIGURATION OF A RURAL MICRO-GRID CONTAINING RENEWABLE ENERGY SOURCES

2021 ◽  
Vol 16 (3) ◽  
pp. 90-97
Author(s):  
Anatoliy Seyfullin ◽  
Aleksandr Vinogradov ◽  
Alina Vinogradova
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity Supply ◽  
Switching Systems ◽  
Electric Grid ◽  
Electrical Grid ◽  
Operating Modes ◽  
Electric Grids

A significant disadvantage of rural distribution electric grids of 0.4 kV is the lack of the ability to operate their configuration. This disadvantage leads to a decrease in the reliability of electricity supply and significant damage to rural consumers from interruptions in electricity supply. A promising direction is the introduction of distributed generation based on renewable energy sources (RES), electricity storage devices into the structure of rural electric grids and the construction of microgrids based on them. However, the issues of building rural microgrids have not been worked out today, the search for rational options for their structure is being conducted all over the world, the development of equipment for their construction is underway. Therefore, the purpose of the research presented in the article is to determine the tasks and strategies for operating the configuration of rural microgrids containing renewable energy sources (RES) based on the use of means of partitioning and reserving the electric grid, that is, means of controlling its configuration and means of monitoring the parameters of its operation modes. As a means of partitioning and reserving the electric grid, it is proposed to use multi-contact switching systems installed at the points of branches in the grid and equipped with sensors for the parameters of the grid operating modes. The use of multi-contact switching systems allows you to implement a flexible change in the grid configuration when changing its operating modes. Power supply sources are also equipped with sensors. The data from the sensors is transmitted to the virtual power plant, which monitors the operating modes of the grid and forms commands for controlling its configuration. This allows you to monitor the operating modes of grid sections and power supply sources, identify normal, emergency and post-emergency modes and make the necessary changes to the grid configuration in a timely manner. As a strategy for the operation of an electrical grid containing renewable energy sources and configuration operating tools, a strategy is proposed that assumes the maximum use of the energy generated by renewable sources when the restrictions are met – a given level of reliability of power supply to consumers and the quality of electricity supplied to them

scholarly journals Perspectives of modern energy storage in miniscule photovoltaic installations

2019 ◽  
Vol 108 ◽  
pp. 01012
Author(s):  
Danuta Olszewska ◽  
Paulina Kiełczykowska ◽  
Miłosz Olszewski
Keyword(s):  
Renewable Energy ◽  
Cost Estimation ◽  
Lithium Battery ◽  
Renewable Energy Sources ◽  
Research Work ◽  
Photovoltaic System ◽  
Energy Sources ◽  
Exposure Level ◽  
Single Family ◽  
Energy Grid

In the research work environmental pollution information and idea of solution of this problem through renewable energy sources were presented. The methods of solar energy coversion as well as methods of its storage in lithium batteries were described. The work presents an analysis of energy system: solar panel and energy bank in households. The ecological aspect of this solution was studied. For this purpose, the costs of new single-family house connection to the energy grid and photovoltaic system connection with a modern lithium battery were calculated. Electricity consumption cost estimation within ten years was made and then it was compared to the expenses for connected photovoltaic system with lithium battery. Aim of the study was realized based on the cost of connection to the energy grid and the costs of photovoltaic system connection with Tesla batteries. From the above data one can see that after about 7 years with lower solar exposure level costs of the installation based on renewable energy sources installation will pay off and after that one can only record a profit from storing and producing electricity.

Sign in / Sign up

Export Citation Format

Share Document