scholarly journals Modern trends of the world market of electrical equipment

2021 ◽  
pp. 5-9
Author(s):  
Tetiana AVERIKHINA ◽  
Maryna BURIACHENKO ◽  
Valeriia VASYLIEVA
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Distribution System ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Electrical Equipment ◽  
World Market ◽  
Global Market ◽  
The World ◽  
Transmission And Distribution

Introduction. The world market of electrical equipment is developing very fast. There are many companies in the market that sell electrical equipment, among them there are companies that occupy leading positions. Today, the world market of energy engineering is estimated at 87 billion dollars per year, based on the structural dynamics of growth, the annual volume can reach 110-115 billion dollars per year until 2025. The global market for energy equipment service in 2020 is 31.7 billion dollars, including: LTSA (long-term service) 47 %, modernization – 20 %, field service – 24 %, engineering – 9 %. The purpose of the paper is to analyze the world market of electrical equipment, determine sales, business growth. The list of leaders in electrical equipment on the world market is considered. Results. The main trends in the world today are the following areas: development of DC transmission system, cable lines for underwater laying and cable for connections of renewable energy sources to reduce energy transmission costs through the capabilities of existing transmission lines, through network voltages and innovative design solutions and installation methods. The amendment for these trends shows us the world leaders in the electrical market, such as Legrand, Schneider Electric, ABB, Siemens, DEKraft, SASSIN, EKF, etc., R&D costs are 3.5–5 % of profits (over 60 years). Thus, we can conclude that the global market for cable networks is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy generation and initiatives to modernize the transmission and distribution system. Conclusion. That the global cable ladder market is developing rapidly. This market is expected to grow in the development of smart grid technologies, renewable energy cultivation and government initiatives to modernize transmission and distribution systems.

A Survey on Smart Grid Distributed Power Flow: IEC61850, IEC 61499 and Intelligent Controls

2014 ◽  
Vol 573 ◽  
pp. 346-351
Author(s):  
G.S. Satheesh Kumar ◽  
Chinnadurai Nagarajan ◽  
M. Lizzy Nesa Bagyam
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Greenhouse Gas Emission ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Reconfigurable Software ◽  
Iec 61499

A Recent concept of distribution infrastructure plays a vital role in the efficient utilization of energy. To avoid global warming and greenhouse gas emission, carbon based power plant should be replaced with distributed renewable energy (DRE) such as wind, solar etc. Renewable energy resources can be integrated to grid by intelligent electronic devices (IED). This paper deals with the novel automation architecture that supports power distribution systems to avoid power blackout and also it briefs the major requirement of the smart grid distribution system needed for a competitive world. International standard IEC 61850 and IEC 61499 provides a solution for substation automation through intelligent logical nodes (ILNs) which enhances interoperability and configurability.Later an open source platform is used for enhancing the communication that automatically generates the data model and communication nodes for intelligent electronic devices.However for future requirements in smart grid, the addition of new functions as well as the adaptation of function for IEDs is necessary. A concept of reconfigurable software architecture is introduced for integrating distributed and renewable energy resources. Such interfaces and services provide adaptation of the functional structure and contribute efficient Smart Grid system. This survey summarizes the communication infrastructure of smart energy system.

scholarly journals Innovating Relations – or Why Smart Grid is not too Complex for the Public

2013 ◽  
Vol 26 (3) ◽  
pp. 82-102 ◽  
Author(s):  
Lea Schick ◽  
Brit Ross Winthereik
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Science And Technology Studies ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The Public ◽  
The World ◽  
Electricity Infrastructure ◽  
Policy Question

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.

scholarly journals Hysteresis Controlled Based Power Quality Improvement in a Renewable Energy Source Connected to Utility grid with BESS Based STATCOM

2021 ◽  
Vol 7 (03) ◽  
pp. 250-255
Keyword(s):  
Renewable Energy ◽  
Digital Signal Processor ◽  
Distribution System ◽  
Distribution Systems ◽  
Fossil Fuels ◽  
Reactive Power ◽  
Neutral Current ◽  
Renewable Energy Sources ◽  
Power Converter ◽  
Energy Sources

This Paper presents a control strategy of the grid interconnected inverter Renewable Energy Sources (RES). This system can achieve the maximum benefits from these grid interconnected inverter when installed in 3-phase 4-wire distribution system. Increasing electrification of daily life causes growing electricity consumption and the rising number of sensitive or critical loads demand for high quality electricity. One of the main problems facing today is that related with the transmission and distribution of electricity. Due to the rapid increase in global energy consumption and the diminishing of fossil fuels, the customer demand for new generation capacities and efficient energy production, delivery and utilization keeps rising. Utilizing distributed generation, renewable energy and energy storage can potentially solve problems as energy shortage. With the increase in load demand, the Renewable Energy Sources (RES) are increasingly connected in the distribution systems which utilizes power electronic Converters/Inverters. The inverter can perform as a multi function device by incorporating active power filter functionality. The inverter can thus be utilized as: 1) power converter to inject power generated from RES to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand and load neutral current. All of these functions may be accomplished either individually or simultaneously. This new control concept is demonstrated with extensive MATLAB/Simulink simulation studies and validated through digital signal processor-based laboratory experimental results.

scholarly journals Economic Optimization of Resource Use Based on Smart Grid

2020 ◽  
pp. 37-47
Author(s):  
O.V. Kubatko ◽  
V.M. Ignatchenko ◽  
S.V. Shaparenko ◽  
I.A. Starodub ◽  
D.O. Yaryomenko
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Energy Policy ◽  
Distribution Systems ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Energy Sources ◽  
Economic Optimization ◽  
Smart Energy Systems

There are significant changes in society's approaches to the energy policy development in the modern world. It is observable a transition from the old model of the energy sector maintenance, which was dominated by large producers, inefficient networks, fossil fuels, imperfect competition in the markets of natural gas, coal, electricity - to a new model, which creates a more competitive environment and equalizes opportunities for development and the dominance one of the types energy production or sources of fuel supply. The traditional network is based on centralized power plants that supply electricity to consumers through simple one-way transmission and distribution systems. The bulk of the current electricity generation capacity in Ukraine is generated by fossil fuels, which significantly contributes to the increase of the carbon dioxide concentration in the Earth's atmosphere and has a corresponding negative consequences for the climate. At the same time, modern preferences are given to increasing energy efficiency and the use of energy from renewable and alternative sources. Implementation of adaptation and prevention measures for climate change is also one of the priorities of global energy development. The renewable energy promotion is causing new economic and scientific challenges for Ukraine. However, at the same time it opens new perspectives for the search and implementation of innovative developments in the field of extraction, processing of fossil fuels, energy supply and consumption, which leads to create a new energy policy of the state. The article discusses theoretical and methodological approaches that reveal the benefits of Smart Grid using. It is emphasized that ensuring energy security and environmental sustainability of the energy sector should be based on the use of renewable energy sources. The article analyzes the main factors that can affect the development of Smart Grid technology. Also, the article describes the best experience of the EU countries, which are introducing smart energy systems for the economic optimization of renewable energy sources use.

scholarly journals Multiobjective Approach for Medium- and Low-Voltage Planning of Power Distribution Systems Considering Renewable Energy and Robustness

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2517
Author(s):  
Diogo Rupolo ◽  
Benvindo Pereira Junior ◽  
Javier Contreras ◽  
José Mantovani
Keyword(s):  
Renewable Energy ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Low Voltage ◽  
Renewable Energy Sources ◽  
Optimization Techniques ◽  
Neighborhood Search ◽  
Medium Voltage ◽  
Multiobjective Approach

In this paper, a multiobjective approach to carry out the planning of medium-voltage (MV) and low-voltage (LV) distribution systems, considering renewable energy sources (RES) and robustness, is proposed. Due to the uncertainties associated with RES and demand, the proposed planning methodology takes into account a robust planning index (RPI). This RPI allows us to evaluate the robustness estimation associated with each planning solution. The objective function in the mathematical model considers the costs of investment and operation and the robustness of the planning proposals. Due to the computational complexity of this problem, which is difficult to solve by means of classical optimization techniques, MV/LV planning is solved by a decomposition search and a general variable neighborhood search (GVNS) algorithm. To demonstrate the efficiency and robustness of this methodology, tests are performed in an integrated distribution system with 50 MV nodes and 410 LV nodes. Our numerical results show that the proposed methodology makes it possible to minimize costs and improve robustness levels in distribution system planning.

Optimal Operation Method of Smart House by Controllable Loads based on Smart Grid Topology

2013 ◽  
Vol 14 (5) ◽  
pp. 411-420 ◽  
Author(s):  
Akihiro Yoza ◽  
Kosuke Uchida ◽  
Atsushi Yona ◽  
Tomonobu Senju
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Heat Pump ◽  
Power Flow ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Optimal Operation ◽  
Apartment House ◽  
Flow Fluctuations ◽  
Smart House

Abstract From the perspective of global warming suppression and depletion of energy resources, renewable energy such as wind generation (WG) and photovoltaic generation (PV) are getting attention in distribution systems. Additionally, all electrification apartment house or residence such as DC smart house have increased in recent years. However, due to fluctuating power from renewable energy sources and loads, supply–demand balancing fluctuations of power system become problematic. Therefore, “smart grid” has become very popular in the worldwide. This article presents a methodology for optimal operation of a smart grid to minimize the interconnection point power flow fluctuations. To achieve the proposed optimal operation, we use distributed controllable loads such as battery and heat pump. By minimizing the interconnection point power flow fluctuations, it is possible to reduce the maximum electric power consumption and the electric cost. This system consists of photovoltaics generator, heat pump, battery, solar collector, and load. In order to verify the effectiveness of the proposed system, MATLAB is used in simulations.

scholarly journals Effect of Renewable Energy and Electric Vehicles on Smart Grid

2015 ◽  
Vol 2 (1-2.) ◽  
Author(s):  
Alaa A. Zaky
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Electric Vehicles ◽  
Power Plants ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Future Research ◽  
Electricity Grid ◽  
Vehicle To Grid ◽  
Energy Technologies

Global electricity demands are increasing at rapid pace. Energy supply, their usage and technologies involved need to be more economical, environment friendly and socially sustainable. Efforts are being done all over the globe to reduce this green house effect; and renewable energy technologies to combat climate changes, which require extensive changes to the current electricity generation and distribution systems. To meet this goal, it is required to optimize the grid operations and available resources to meet the ever increasing energy demands in an efficient, effective and environment sustainable way. So strong and huge interests on smart grid have increased extensively in recent years around the world. This scenario could be a promising reason for future research in this area. This next form of electricity grid will be able to manage various parts of power production from power plants to the customers. Renewable energy sources appear strongly in smart grid so in this paper the effect of this sources will be studied also electric vehicles have a great effect on smart grid infrastructure ,communication and control this paper will discuss this effect if it come from the electric vehicle mode or vehicle to grid mode.

scholarly journals Load Areas in Radial Unbalanced Distribution Systems

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 3030 ◽  
Author(s):  
Giovanni M. Casolino ◽  
Arturo Losi
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Distribution Systems ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Small Scale ◽  
Location Information ◽  
System Operator ◽  
The Individual ◽  
Distribution Grids

The demand becoming flexible is a requirement for the full exploitation of renewable energy sources. Aggregation may foster the provision of flexibility by small-scale providers connected to distribution grids, since it allows offering significant flexibility volumes to the market. The aggregation of flexibility providers is carried out by the aggregator, a new market role and possibly a new market player. Location information of individual flexibility providers is necessary for both the aggregator and the system operators, in particular, the Distribution System Operator (DSO). For the former, information should allow treating a high number of individual flexibility providers as a single provider to offer significant flexibility volumes to the markets; for the latter, the information should ensure an adequate visibility of the connection of the individual providers to the grid. In the paper, the concept of Load Area (LA) is recalled, which combines the needs of location information of the aggregator and of the DSO. A method for the identification and modeling of LAs for the general case of unbalanced radial systems is proposed. The results of the methods’ application to two studied unbalanced networks are presented, showing the effectiveness and viability of the proposed approach.

scholarly journals Promotion of investment in renewable energy projects

2019 ◽  
Vol 91 ◽  
pp. 03006
Author(s):  
Anna Rumyantseva ◽  
Svetlana Zhutyaeva ◽  
Natalya Lazareva
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Development ◽  
Global Market ◽  
Bond Market ◽  
Energy Sources ◽  
Energy Projects ◽  
The World ◽  
Market State ◽  
Wind Energy Development

The article presents the need for the development of renewable energy sources due to the improvement of energy efficiency, safety, and environmental conditions; there is also a worldwide state interest in this area of development. An overview of the production of electricity from renewable energy sources in the world since 1990 is made, and it is noted that the fastest development rates are observed in the solar and wind energy development. The global market for environmental projects financing is analyzed, the instruments for renewable energy projects financing are evaluated, and the green bond market state is presented in detail. Directions for further policies aimed at encouraging increased investment in renewable energy sources are proposed.

Sign in / Sign up

Export Citation Format

Share Document