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Microgrids And Methods Of Analysis

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Microgrids and Methods of Analysis

Microgrids and Methods of Analysis Book
Author : Gevork Garehpetian,Hamid Reza Baghaee,Masoud M. Shabestary,S. Mohammad Mousavi Agah
Publisher : Academic Press
Release : 2019-08
ISBN : 9780128161722
Language : En, Es, Fr & De

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Book Description :

Microgrids and Methods of Analysis addresses systematic analysis, control/protection systems design, and optimal operation of a distribution system under high-depth of DER penetration and the required, appropriate methods and software tools that are analogous to large interconnected power systems. Topics covered have been presented in many research papers, but there is still a need to summarize and categorize the presented and existing knowledge on this subject. This book presents the concept of the microgrid and the methods to analyze them systematically. Presents new analytical solutions for solving microgrid operational problems Develops the old methods for microgrid analysis Provides a new systematic insight to study in the field of microgrids

Microgrid Architectures Control and Protection Methods

Microgrid Architectures  Control and Protection Methods Book
Author : Naser Mahdavi Tabatabaei,Ersan Kabalci,Nicu Bizon
Publisher : Springer
Release : 2019-08-01
ISBN : 3030237230
Language : En, Es, Fr & De

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Book Description :

This book presents intuitive explanations of the principles of microgrids, including their structure and operation and their applications. It also discusses the latest research on microgrid control and protection technologies and the essentials of microgrids as well as enhanced communication systems. The book provides solutions to microgrid operation and planning issues using various methodologies including planning and modelling; AC and DC hybrid microgrids; energy storage systems in microgrids; and optimal microgrid operational planning. Written by specialists, it is filled in innovative solutions and research related to microgrid operation, making it a valuable resource for those interested in developing updated approaches in electric power analysis, design and operational strategies. Thanks to its in-depth explanations and clear, three-part structure, it is useful for electrical engineering students, researchers and technicians.

Distributed Control Methods and Cyber Security Issues in Microgrids

Distributed Control Methods and Cyber Security Issues in Microgrids Book
Author : Wenchao Meng,Xiaoyu Wang,Shichao Liu
Publisher : Academic Press
Release : 2020-03-22
ISBN : 0128169478
Language : En, Es, Fr & De

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Book Description :

Distributed Control and Cyber Security Issues in Microgrids presents a thorough treatment of distributed control methods and cyber security issues for power system researchers and engineers. With the help of mathematical tools, this reference gives a deep understanding of microgrids and new research directions, addressing emerging concepts, methodologies and applications of monitoring, control and protection in smart microgrids with large-scale renewables. With the integration of more distributed or aggregated renewables and the wide utilization of power electronic devices, the smart microgrid is facing new stability and security challenges. Includes global case studies to demonstrate distributed control success stories Offers detailed illustrations and flowcharts to address challenges and technical solutions for those working in power systems in utilities and industry Showcases new challenges faced in the stability and security of smart microgrids

Stability Analysis of DC Microgrids with Constant Power Load Under Distributed Control Methods

Stability Analysis of DC Microgrids with Constant Power Load Under Distributed Control Methods Book
Author : Anonim
Publisher : Unknown
Release : 2018
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract: Constant power loads (CPLs) often cause instability due to its negative impedance characteristics. In this study, the stability of a DC microgrid with CPLs under a distributed control that aims at current sharing and voltage recovery is analyzed. The effect of the negative impedance on the behavior of distributed controller is investigated. The small-signal model is established to predict the system qualitative behavior around equilibrium. The stability conditions of the system with time delay are derived based on the equivalent linearized model. Additionally, eigenvalue analysis based on inertia theorem provides analytical sufficient conditions as a function of the system parameters, and thus it leads to a design guideline to build reliable microgrids. Simulations are performed to confirm the effectiveness and validity of the proposed method.

Optimum Design of Renewable Energy Systems Microgrid and Nature Grid Methods

Optimum Design of Renewable Energy Systems  Microgrid and Nature Grid Methods Book
Author : Obara, Shin’ya
Publisher : IGI Global
Release : 2014-03-31
ISBN : 1466657979
Language : En, Es, Fr & De

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Book Description :

The management of global warming is a relevant issue throughout the world and has experts of various fields considering various methods to control Earth’s atmospheric temperature. While microgrid technology is emerging as the next generation energy supply system, renewable energy is often unstable and requires the support of conventional energy equipment. Optimum Design of Renewable Energy Systems: Microgrid and Nature Grid Methods investigates the development of highly efficient energy storage equipment and of operation optimization technology of compound energy systems. This book is an essential reference source for technical consultants, urban environment engineers, and energy researchers interested in the development of efficient energy systems and operation optimization technology.

Transient Characteristics Modelling and Stability Analysis of Microgrid

Transient Characteristics  Modelling and Stability Analysis of Microgrid Book
Author : Zhikang Shuai
Publisher : Springer Nature
Release : 2020-10-31
ISBN : 9811584036
Language : En, Es, Fr & De

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Book Description :

The book focuses on the transient modelling, stability analysis and control of power electronic systems, since these systems face severe safe operation problems the during transient period. It discusses both theoretical analysis and practical applications, highlighting the transient characteristics of converters with different control strategies, and proposes transient modelling and model reduction methods. Furthermore, it classifies the transient stability problems of the system to help the readers gain an understanding of the basic theoretical methods for analysing the power electronic system, at the same time providing sufficient detail to enable engineers to design such systems. Comprehensively describing theoretical analyses, ranging from system modelling and stability analysis to transient control, the book is a valuable resource for researchers, engineers and graduate students in fields of transient modelling, stability analysis and control of power electronic systems.

A Framework for Microgrid Analysis Using OpenDSS

A Framework for Microgrid Analysis Using OpenDSS Book
Author : Sryang Tera Sarena
Publisher : LAP Lambert Academic Publishing
Release : 2014-02
ISBN : 9783659461101
Language : En, Es, Fr & De

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Book Description :

In recent years, along with the rise of global warming issue, researches of renewable energy usage for producing electricity are sprung up. The penetration of renewable energy usage to microgrid brings new challenge as most of the renewable energy are unpredictable. In order to get optimal microgrid operation, integration of methods and softwares are needed in microgrid analysis. This study will use OpenDSS in cooperation with Matlab. Thus optimization algorithm implementation can be achieved by Matlab and simulations of microgrid performed in OpenDSS. The establishment constructs a flexible framework for microgrid analysis which is extensible for various practical studies.

Microgrids and other Local Area Power and Energy Systems

Microgrids and other Local Area Power and Energy Systems Book
Author : Alexis Kwasinski,Wayne Weaver,Robert S. Balog
Publisher : Cambridge University Press
Release : 2016-07-14
ISBN : 1316552721
Language : En, Es, Fr & De

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Book Description :

Describing the formation, integration, planning, composition and operation of microgrids, this book explains how local power systems can address limitations in conventional electric power grids and provides insights into the practical implementation needs and outcomes of microgrid technology. All aspects of microgrid design and applications are covered, including the main technologies involved in microgrids and other local area power and energy systems. The reliability and economic characteristics of microgrid system architecture, energy storage and grid interaction are explored in depth. Over 300 illustrations and real-world application examples make this a fully self-contained resource, ideal for graduate students and professionals in electrical, mechanical and chemical engineering and materials science.

Optimization of Unit Commitment and Economic Dispatch in Microgrids Based on Genetic Algorithm and Mixed Integer Linear Programming

Optimization of Unit Commitment and Economic Dispatch in Microgrids Based on Genetic Algorithm and Mixed Integer Linear Programming Book
Author : Mohsen Shiralizadeh Nemati
Publisher : kassel university press GmbH
Release : 2018-04-16
ISBN : 3737604649
Language : En, Es, Fr & De

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Book Description :

Energy Management System (EMS) applications of modern power networks like microgrids have to respond to a number of stringent challenges due to current energy revolution. Optimal resource dispatch tasks must be handled with specific regard to the addition of new resource types and the adoption of novel modeling considerations. In addition, due to the comprehensive changes concerning the multi cell grid structure, new policies should be fulfilled via microgrids’ EMS. At the same time achieving a variety of conflicting goals in different microgrids requires a universal and a multi criteria optimization tool. In this work two dispatch-optimizers based on genetic algorithm and mixed integer linear programming for a centralized EMS are introduced which can schedule the unit commitment and economic dispatch of microgrid units. In the proposed methods, different network restrictions like voltages and equipment loadings and unit constraints have been considered.

Hybrid Renewable Energy Systems in Microgrids

Hybrid Renewable Energy Systems in Microgrids Book
Author : Hina Fathima,Prabaharan N,Palanisamy K,Akhtar Kalam,Saad Mekhilef,Jackson J. Justo
Publisher : Woodhead Publishing
Release : 2018-06-02
ISBN : 0081024940
Language : En, Es, Fr & De

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Book Description :

Hybrid-Renewable Energy Systems in Microgrids: Integration, Developments and Control presents the most up-to-date research and developments on hybrid-renewable energy systems (HRES) in a single, comprehensive resource. With an enriched collection of topics pertaining to the control and management of hybrid renewable systems, this book presents recent innovations that are molding the future of power systems and their developing infrastructure. Topics of note include distinct integration solutions and control techniques being implemented into HRES that are illustrated through the analysis of various global case studies. With a focus on devices and methods to integrate different renewables, this book provides those researching and working in renewable energy solutions and power electronics with a firm understanding of the technologies available, converter and multi-level inverter considerations, and control and operation strategies. Includes significant case studies of control techniques and integration solutions which provide a deeper level of understanding and knowledge Combines existing research into a single informative resource on micro grids with HRES integration and control Includes architectural considerations and various control strategies for the operation of hybrid systems

Analysis and Mitigation of Frequency Disturbances in an Islanded Microgrid

Analysis and Mitigation of Frequency Disturbances in an Islanded Microgrid Book
Author : Abrez Mondal
Publisher : Unknown
Release : 2017
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

The advent of microgrids has shifted the focus from centralized power generation to a more distributed manner, involving a mix of different distributed energy resources (DERs). Reciprocating engine driven synchronous generators (referred as gensets) are a common DER used for distributed generation. One of the key concerns with such power networks is the aspect of frequency regulation under large disturbances, especially in an islanded mode of operation, without the support of the utility grid. This works looks at possible solution methods for mitigating large frequency disturbances in an islanded microgrid. Due to steep load changes, the gensets undergo large frequency swings and can be even vulnerable to stalling. The benefits of smart loads are analyzed in this work to prevent such occurrence by temporarily reducing the transient overload on gensets. Another solution to mitigate large frequency deviation is the integration of energy storage system (ESS), but the effectiveness depends on its operation as a grid-forming or a grid-following unit. Important metrics such as frequency nadir during load changes in the islanded microgrid are computed to show the usefulness of ESS in islanded microgrids. For this purpose, analytical methods using reduced-order models are developed and found to provide accurate estimates of frequency deviations under power system disturbances. Generally, ESS units are interfaced with an inverter and when operated in grid-forming mode can offer desired dynamic frequency behavior in an islanded microgrid. Similarly, other inverter-based DERs can also provide good frequency regulation as they share the larger portion of the transient overload compared to gensets. However, under certain scenarios the inverter-based DERs are found to collapse due to this large transient loading and can bring down the whole microgrid system as a result. A better coordination between the different DERs in a mixed source microgrid is facilitated in this work to guarantee adequate inertial response. Such a scheme redistributes the unequal transient load sharing between gensets and inverter-based DERs and provides improved frequency regulation, without compromising on the survivability of islanded microgrids. The use of smart loads is also incorporated as an additional feature in the overall coordinated scheme for withstanding extreme scenarios.

Distributed Energy Resources in Microgrids

Distributed Energy Resources in Microgrids Book
Author : Rajeev Kumar Chauhan,Kalpana Chauhan
Publisher : Academic Press
Release : 2019-08-17
ISBN : 0128177756
Language : En, Es, Fr & De

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Book Description :

Distributed Energy Resources in Microgrids: Integration, Challenges and Optimization unifies classically unconnected aspects of microgrids by considering them alongside economic analysis and stability testing. In addition, the book presents well-founded mathematical analyses on how to technically and economically optimize microgrids via distributed energy resource integration. Researchers and engineers in the power and energy sector will find this information useful for combined scientific and economical approaches to microgrid integration. Specific sections cover microgrid performance, including key technical elements, such as control design, stability analysis, power quality, reliability and resiliency in microgrid operation. Addresses the challenges related to the integration of renewable energy resources Includes examples of control algorithms adopted during integration Presents detailed methods of optimization to enhance successful integration

Hybrid Renewable Energy Systems and Microgrids

Hybrid Renewable Energy Systems and Microgrids Book
Author : Ersan Kabalci
Publisher : Academic Press
Release : 2020-11-21
ISBN : 012823248X
Language : En, Es, Fr & De

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Book Description :

Hybrid Renewable Energy Systems and Microgrids covers the modeling and analysis for each type of integrated and operational hybrid energy system. Looking at the fundamentals for conventional energy systems, decentralized generation systems, RES technologies and hybrid integration of RES power plants, the most important contribution this book makes is combining emerging energy systems that improve micro and smart grid systems and their components. Sections cover traditional system characteristics, features, challenges and benefits of hybrid energy systems over the conventional power grid, the deployment of emerging power electronic technologies, and up-to-date electronic devices and systems, including AC and DC waveforms. Conventional, emerging and hierarchical control methods and technologies applied in microgrid operations are covered to give researchers and practitioners the information needed to ensure reliability, resilience and flexibility of implemented hybrid energy systems. Presents detailed contents on emerging power networks provided by decentralized and distributed generation approaches Covers driving factors, photovoltaic based power plant modeling and planning studies Introduces hierarchical control methods and technologies applied in microgrid operations to ensure reliability, resilience and flexibility of hybrid energy systems

Power Quality in Microgrids Based on Distributed Generators

Power Quality in Microgrids Based on Distributed Generators Book
Author : Ambrish Chandra,Hua Geng
Publisher : MDPI
Release : 2019-12-10
ISBN : 3039280066
Language : En, Es, Fr & De

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Book Description :

This book comprises ten articles covering different aspects of power quality issues in microgrids and distributed generation (DG) systems, including 1) Detection and estimation of power quality; 2) Modeling; 3) Harmonic control for DG systems and microgrids; 4) Stability improvements for microgrids. Different power quality phenomena and solution were studied in the included papers, such as harmonics, resonance, frequency deviation, voltage sag, and fluctuation. From a network point of view, some papers studied the harmonic and stability issues in standalone microgrids which are more likely to cause power quality problems. Other papers discussed the power quality problems in microgrids which are weakly interconnected with the main distribution grid. In view of the published papers, there is a trend that increasingly advanced modeling, analysis, and control schemes were applied in the studies. Moreover, the latest works focus not only on single-unit problems but also multiple units or network issues. Although some of the hot topics are not included, this book covers multiple aspects of the current power quality research frontier, and represents a particularly useful reference book for frontier researchers in this field.

Microgrid

Microgrid Book
Author : Ritwik Majumder
Publisher : Unknown
Release : 2010
ISBN : 9783639247695
Language : En, Es, Fr & De

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Book Description :

Many innovative control techniques have been used for enhancing the stability of microgrid as for proper load sharing. The most common method is the use of droop characteristics for decentralized load sharing. The power sharing of distributed sources is the main focus of this dissertation. In this book, an angle droop controller is used to share power amongst converter interfaced DGs in a microgrid. An enhanced frequency droop controller is also proposed for better dynamic response and smooth transition between grid connected and islanded modes of operation. Power quality enhanced operation of a microgrid in presence of unbalanced and non linear loads is also addressed in which the DGs act as compensators. A frequency and voltage isolation technique between microgrid and utility is shown by using a back-to- back converter. For accurate load sharing, the droop gains have to be high, which has the potential of making the system unstable. To improve this situation, a supplementary droop controller is designed. Two methods are proposed for load sharing in an autonomous microgrid in rural network with high R/X ratio lines.

Networked Microgrids

Networked Microgrids Book
Author : Peng Zhang
Publisher : Cambridge University Press
Release : 2021-04-30
ISBN : 1108497659
Language : En, Es, Fr & De

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Book Description :

Discover scalable, dependable, intelligent solutions for integrating complex networked microgrids with this definitive guide. Combining resilient control, fast programmable networking, reachability analysis, and cyber-physical security, this is essential reading for researchers, professional engineers, and graduate students.

Advances in Energy Science and Technology

Advances in Energy Science and Technology Book
Author : Xiao Chun Tang,Xiao Hong Chen,Yu Xiang Dong,Xiu Guo Wei,Qing Sheng Yang
Publisher : Trans Tech Publications Ltd
Release : 2013-02-13
ISBN : 3038260150
Language : En, Es, Fr & De

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Book Description :

Selected, peer reviewed papers from the 2012 International Conference on Sustainable Energy and Environmental Engineering (ICSEEE 2012), December 29 -30, 2012, Guangzhou, China. Volume is indexed by Thomson Reuters CPCI-S (WoS). The studies cover topics such as: Development and Utilization of Solar Energy, Development and Utilization of Biomass Energy, Development and Utilization of Wind Energy, Nuclear Energy, Hydrogen, Fuel Cell and Other New Energy, Energy Storage Technologies and Energy-Saving Technologies, Energy Materials and Energy Chemical Engineering, Energy Security and Clean Use, New Energy Vehicles and Electric Vehicles, Green Building, Energy-Saving Buildings and Construction Technology, Development and Management of the Energy and Resource Industry, Power System and Automation.

Progress in Analytical Atomic Spectroscopy

Progress in Analytical Atomic Spectroscopy Book
Author : Anonim
Publisher : Unknown
Release : 1984
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Progress in Analytical Atomic Spectroscopy book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Modeling Analysis and Control of Mixed Source Microgrid

Modeling  Analysis and Control of Mixed Source Microgrid Book
Author : Ajit Anbiah Renjit
Publisher : Unknown
Release : 2016
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Microgrids with natural gas engine driven distributed energy resources (DERs) are more likely to be favored by both industries and utilities in the near future because of their low costs, which, in turn, is due to the newly found shale deposits at many places in the world. Such DERs can be connected either directly or through an inverter to the utility/load. Therefore, they are referred to as synchronous generator-based DERs and inverter - based DERs respectively. In this research work, the synchronous generator-based DER and inverter-based DER installed at the CERTS Microgrid test bed have been modeled. The dynamic and steady-state performance of the models were evaluated by verifying the model results against experimental tests conducted at the CERTS microgrid. A key contribution of this modeling effort is that the developed models of the DERs are simple and can fairly represent to a reasonable degree of accuracy the dynamic behavior without infringing on the confidential information of the commercial equipment manufacturers. Such models can easily be multiplied wherever necessary with appropriate scaling to facilitate analysis of numerous scenarios and case studies that may be otherwise impractical due to resource limitations at the field site to undertake actual testing ¿ or at the very least expensive and time consuming.

China Today

China Today Book
Author : Anonim
Publisher : Unknown
Release : 1989
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

En omfattende gennemgang og beskrivelse af flyindustriens og luftfartens udvikling i Den kinesiske Folkerepublik såvel inden for den civile som militære flyvning.