scholarly journals Implementation of a Web-based remote control system for qZS DAB application using low-cost ARM platform

2016 ◽  
Vol 64 (4) ◽  
pp. 887-896 ◽  
Author(s):  
M. Korzeniewski ◽  
K. Kulikowski ◽  
J. Zakis ◽  
M. Jasinski ◽  
A. Malinowski

Abstract Continuous development of intelligent network applications drives the demand for deployment-ready hardware and software solutions. Such solutions are highly valued not only by distributed producers of energy but by energy consumers as well. The use of intelligent network applications enables the development and improvement of the quality of services. It also increases self-sufficiency and efficiency. This paper describes an example of such device that allows for the control of a dual active bridge (DAB) converter and enables its remote control in real time over an IP-based network. The details of both hardware and software components of proposed implementation are provided. The DAB converter gives a possibility to control and manage the energy between two DC power systems with very different voltage levels. Not only information, but also the quality of energy, the direction of power flow, and energy storage systems can be easily controlled through an IP-based network and power electronics converters. Information technology, together with intelligent control of power electronics technology, provides a flexible solution, especially for sustainable smart grids.

2020 ◽  
Vol 12 (20) ◽  
pp. 8662
Author(s):  
Ángeles Verdejo-Espinosa ◽  
Macarena Espinilla-Estévez ◽  
Francisco Mata Mata

In this work, a systematic review of the literature has been carried out to analyse the design of intelligent networks in environments inhabited by people and the applications of sensors to improve quality of life and aid human activities. This study aims to answer three research questions. The first question is whether the design of smart grids is made with people in mind. The second question focuses on whether intelligent networks are being taken account of in the research on human activity recognition, the Internet of Things, and the recognition of activities of daily living. The third question looks at whether there are synergies and multidisciplinary teams studying state-of-the-art technologies applied to environments inhabited by elderly or disabled people. Installations with sensors deployed for the improvement of the quality of human life will also help to improve the quality of the intelligent network, thus integrating the Human–Technology binomial. This study concludes with an analysis of the results of the sources examined, putting forward a protocol of seven proposals to guide future work.


Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2493
Author(s):  
Taha Selim Ustun ◽  
S. M. Suhail Hussain ◽  
Mazheruddin H. Syed ◽  
Paulius Dambrauskas

As the number of EVs increases, their impact on electrical systems will be substantial. Novel management schemes are needed to manage the electrical load they require when charging. Literature is rich with different techniques to manage and control this effect on the grid by controlling and optimizing power flow. Although these solutions heavily rely on communication lines, they mostly treat communication as a black box. It is important to develop communication solutions that can integrate EVs, charging stations (CSs), and the rest of the grid in an interoperable way. A standard approach would be indispensable as there are different EV models manufactured by different companies. The IEC 61850 standard is a strong tool used for developing communication models for different smart grid components. However, it does not have the necessary models for implementing smart EV management schemes that coordinate between EVs and CSs. In this paper, these missing links are addressed through the development of corresponding models and message mapping. A hardware-in-the-loop test is performed to validate the communication models and cross-platform operation. Then, a co-simulation environment is used to perform a combined study of communication and the power system components. The developed communication model helps integrate the EVs to a centralized, coordinated voltage control scheme. These models can be used to run extensive impact studies where different domains of smart grids need to be considered simultaneously. The main contribution of this paper is the development of smartgrid communication solutions for enabling successful information exchanges.


Author(s):  
Vasiliki Chrysikou ◽  
Miltiadis Alamaniotis ◽  
Lefteri H. Tsoukalas

Smart electricity grid is a complex system being the outcome of the marriage of power systems with computing technologies and information networks. The information transmitted in the network is utilized for controlling the power flow in the electricity distribution grid. Thus smart grid facilitates a demand response approach, where grid participants monitor and respond to information signals with their electricity demand. This review paper focuses on a subclass of demand response methods and more particularly in incentive based demand response. It aims at providing a review of the existing and proposed methods while briefly explaining their main points and outcomes. In the current approach, the plethora of methods on incentive based demand response is grouped according to the tools adopted to implement the incentives. The overall goal is to provide a comprehensive list of incentive design tools and be a point of inspiration for researchers in the field of incentive based demand response in smart grids.


2011 ◽  
Vol 2 (2) ◽  
pp. 606-614 ◽  
Author(s):  
Anthony S. Deese ◽  
Chika O. Nwankpa

In this paper, the authors address computational issues associated with implementation of VLSI technologies-specifically, the utilization of field programmable analog array (FPAA) technology to analyze the steady-state as well dynamic behavior of nonlinear, multiscale power systems. Emphasis is placed on the following issues: adaptation of FPAA hardware for power flow analyses, design and construction of physical prototype, optimal hardware scaling, and application of emulation to transient fault analyses.


2014 ◽  
Vol 63 (3) ◽  
pp. 409-422 ◽  
Author(s):  
P. Szcześniak ◽  
Z. Fedyczak

Abstract Advanced power electronic converters can provide the means to control power flow and ensure proper and secure operation of the future power grid. The small electrical energy sources dispersed in electrical power systems referred to as distributed generation are one of the most significant parts of future grids - Smart Grids. The threephase, direct matrix converter is an alternative solution to the conventional AC-DC-AC converter for interfacing two AC systems in distributed power generation with different voltage and/or frequency parameters. This paper presents a control analysis of a threephase matrix converter employed as a power interface of future electrical grids. The proposed system has been successfully tested for bidirectional power flow operation with different grid operating conditions, such as, frequency and voltage variation


2016 ◽  
Vol 6 (6) ◽  
pp. 1217-1220 ◽  
Author(s):  
Z. Masomi Zohrabad

Power networks continue to grow following the annual growth of energy demand. As constructing new energy generation facilities bears a high cost, minimizing power grid losses becomes essential to permit low cost energy transmission in larger distances and additional areas. This study aims to model an optimization problem for an IEEE 30-bus power grid using a Tabu search algorithm based on an improved hybrid Harmony Search (HS) method to reduce overall grid losses. The proposed algorithm is applied to find the best location for the installation of a Unified Power Flow Controller (UPFC). The results obtained from installation of the UPFC in the grid are presented by displaying outputs.


2018 ◽  
Author(s):  
Вероника Александровна Одрузова

Нестабильность современных энергосетей является одной из основных проблем, приводящих к недоотпуску электроэнергии, к ее плохому качеству, порче оборудования и экономическим потерям. Развитие распределённой генерации способствует снижению потерь электрической энергии, улучшению качества поставляемой энергии, повышению надежности и устойчивости энергосистем, позволяет достичь значительного экономического эффекта. Внедрение модернизированных сетей электроснабжения Smart Grid позволит повысить надёжность, устойчивость, стабильность, а также оптимизировать экономический эффект производства и распределения электроэнергии.The instability of modern power grids is one of the main problems leading to undersupply of electricity, its poor quality, damage to the equipment and economic losses.The development of distributed generation contributes to reducing the losses of electrical energy, improving the quality of the supplied energy, increasing the reliability and sustainability of power systems and allowsachieving a significant economic effect.The implementation of the upgraded Smart Grids will improve the reliability, flexibility, sustainability and alsoallow optimizing the economic effect of the production and distribution of electricity.


Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5405
Author(s):  
Thomas Geury ◽  
Sonia Ferreira Pinto ◽  
Johan Gyselinck ◽  
Patrick Wheeler

This paper proposes an Indirect Matrix Converter (IMC)-based grid-tied Photovoltaic (PV) system for Smart Grids (SGs). The PV array injects current in the ‘dc link’ of the IMC through an inductive link, and is connected to the SG with shunt and series connections, allowing for the compensation of current- and voltage-related Power Quality (PQ) issues, respectively, for the sensitive loads and the SG connection. A direct sliding mode-based controller is proposed to guarantee nearly sinusoidal currents in the connection to the SG, and sinusoidal voltages guaranteeing compliance with international standards, when supplying the sensitive loads. Additionally, a novel control approach for the ‘dc link’ voltage is synthesised to allow for the control of both the PV array current and the power flow to the SG. To guarantee the semiconductors safe commutation an asynchronous commutation strategy is derived. Simulation and experimental results show that the proposed system significantly improves PQ in the SG, minimizing the total harmonic distortion of the currents injected in the SG, and guaranteeing the quality of the voltage supplied to the sensitive loads, even in the occurrence of voltage sags or overvoltages.


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