Dc Distribution Systems And Microgrids

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Dc Distribution Systems And Microgrids

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Author : Tomislav Dragičević
language : en
Publisher: Energy Engineering
Release Date : 2018-10

Dc Distribution Systems And Microgrids written by Tomislav Dragičević and has been published by Energy Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10 with Technology & Engineering categories.

This book provides an overview of recent research activities in the control, protection and architectural design of a number of different types of DC distribution systems and microgrids. Practical requirements and implementation details of several types of DC distribution systems used in real world industrial applications are also given.

Mitigation Of Negative Impedance Instabilities In Dc Distribution Systems

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Author : Deepak Kumar Fulwani
language : en
Publisher: Springer
Release Date : 2016-10-01

Mitigation Of Negative Impedance Instabilities In Dc Distribution Systems written by Deepak Kumar Fulwani and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-01 with Technology & Engineering categories.

This book focuses on the mitigation of the destabilizing effects introduced by constant power loads (CPLs) in various non-isolated DC/DC converters and island DC microgrids using a robust non-linear sliding mode control (SMC) approach. This book validates theoretical concepts using real-time simulation studies and hardware implementations. Novel sliding mode controllers are proposed to mitigate negative impedance instabilities in DC/DC boost, buck, buck-boost, bidirectional buck-boost converters, and islanded DC microgrids. In each case, the condition for the large-signal stability of the converter feeding a CPL is established. An SMC-based nonlinear control scheme for an islanded DC microgrid feeding CPL dominated load is proposed so as to mitigate the destabilizing effect of CPL and to ensure system stability under various operating conditions. A limit on CPL power is also established to ensure system stability. For all proposed solutions, simulation studies and hardware implementations are provided to validate the effectiveness of the proposed sliding mode controllers.

Dynamic Modeling Stability Analysis And Controller Design For Dc Distribution Systems

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Author : Reza Ahmadi
language : en
Publisher:
Release Date : 2013

Dynamic Modeling Stability Analysis And Controller Design For Dc Distribution Systems written by Reza Ahmadi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Electric current converters categories.

"The dc distribution systems or dc microgrids are known to be best suited for integration of renewable energy sources into the current power grid and are considered to be the key enabling technology for the development of future smart grid. Dc microgrids also benefit from better current capabilities of dc power lines, better short circuit protection, and transformer-less conversion of voltage levels, which result in higher efficiency, flexibility, and lower cost. While the idea of using a dc microgrid to interface distributed energy sources and modern loads to the power grid seems appealing at first, several issues must be addressed before this idea can be implemented fully. The configuration, stability, protection, economic operation, active management, and control of future dc microgrids are among the topics of interest for many researchers. The purpose of this dissertation is to investigate the dynamic behavior and stability of a future dc microgrid and to introduce new controller design techniques for the Line Regulating Converters (LRC) in a dc distribution system. Paper I is devoted to dynamic modeling of power converters in a dc distribution system. The terminal characteristics of tightly regulated power converters which are an important factor for stability analysis and controller design are modeled in this paper. Paper II derives the simplified model of a dc distribution system and employs the model for analyzing stability of the system. Paper III introduces two controller design methods for stabilizing the operation of the LRC in presence of downstream constant power loads in a dc distribution system. Paper IV builds upon paper III and introduces another controller design method which uses an external feedback loop between converters to improve performance and stability of the dc grid."--Abstract, page iv.

Integrated Distribution Systems With Ac Dc Hybrid Microgrids

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Author : Xiaonan Lu
language : en
Publisher: Wiley-IEEE Press
Release Date : 2023-07-05

Integrated Distribution Systems With Ac Dc Hybrid Microgrids written by Xiaonan Lu and has been published by Wiley-IEEE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-07-05 with Science categories.

This book presents foundational technologies and background knowledge in the field of AC/DC/hybrid microgrids. It then goes on to describe technical advances and emerging technologies. The authors focus on planning, control and operation of integrated distribution systems with AC/DC/hybrid microgrids. Here, the integrated distribution system refers to the modern distribution system with distributed energy resource (DER) and microgrid integration. Rather than solely relying on AC or DC subsystems, the book covers both AC, DC and hybrid microgrids in integrated distribution systems in order to introduce a comprehensive solution.

Dc Microgrids

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Author : Nikita Gupta
language : en
Publisher: John Wiley & Sons
Release Date : 2022-06-21

Dc Microgrids written by Nikita Gupta and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-21 with Science categories.

DC MICROGRIDS Written and edited by a team of well-known and respected experts in the field, this new volume on DC microgrids presents the state-of-the-art developments and challenges in the field of microgrids for sustainability and scalability for engineers, researchers, academicians, industry professionals, consultants, and designers. The electric grid is on the threshold of a paradigm shift. In the past few years, the picture of the grid has changed dramatically due to the introduction of renewable energy sources, advancements in power electronics, digitalization, and other factors. All these megatrends are pointing toward a new electrical system based on Direct Current (DC). DC power systems have inherent advantages of no harmonics, no reactive power, high efficiency, over the conventional AC power systems. Hence, DC power systems have become an emerging and promising alternative in various emerging applications, which include distributed energy sources like wind, solar and Energy Storage System (ESS), distribution networks, smart buildings, remote telecom systems, and transport electrification like electric vehicles (EVs). All these applications are designed at different voltages to meet their specific requirements individually because of the lack of standardization. Thus, the factors influencing the DC voltages and system operation needed to be surveyed and analyzed, which include voltage standards, architecture for existing and emerging applications, topologies and control strategies of power electronic interfaces, fault diagnosis and design of the protection system, optimal economical operation, and system reliability.

Dc Microgrids Scoping Study Estimate Of Technical And Economic Benefits

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Author :
language : en
Publisher:
Release Date : 2015

Dc Microgrids Scoping Study Estimate Of Technical And Economic Benefits written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Microgrid demonstrations and deployments are expanding in US power systems and around the world. Although goals are specific to each site, these microgrids have demonstrated the ability to provide higher reliability and higher power quality than utility power systems and improved energy utilization [1] [2][3]. The vast majority of these microgrids are based on AC power transfer because this has been the traditionally dominant power delivery scheme. Independently, manufacturers, power system designers and researchers are demonstrating and deploying DC power distribution systems for applications where the end-use loads are natively DC [4], e.g., computers [5], solid-state lighting [6], and building networks [6]. These early DC applications may provide higher efficiency, added flexibility, reduced capital costs over their AC counterparts. Further, when onsite renewable generation, electric vehicles and storage systems are present, DC-based microgrids may offer additional benefits [7]. Early successes from these efforts raises a question--can a combination of microgrid concepts and DC distribution systems provide added benefits beyond what has been achieved individually?

Distributed Generation Systems

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Author : Gevork B. Gharehpetian
language : en
Publisher: Butterworth-Heinemann
Release Date : 2017-05-19

Distributed Generation Systems written by Gevork B. Gharehpetian and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-19 with Technology & Engineering categories.

Distributed Generation Systems: Design, Operation and Grid Integration closes the information gap between recent research on distributed generation and industrial plants, and provides solutions to their practical problems and limitations. It provides a clear picture of operation principles of distributed generation units, not only focusing on the power system perspective but targeting a specific need of the research community. This book is a useful reference for practitioners, featuring worked examples and figures on principal types of distributed generation with an emphasis on real-world examples, simulations, and illustrations. The book uses practical exercises relating to the concepts of operating and integrating DG units to distribution networks, and helps engineers accurately design systems and reduce maintenance costs. Provides examples and datasheets of principal systems and commercial data in MATLAB Presents guidance for accurate system designs and maintenance costs Identifies trouble shooting references for engineers Closes the information gap between recent research on distributed generation and industrial plants

Modeling Operation And Analysis Of Dc Grids

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Author : Alejandro Garces
language : en
Publisher: Academic Press
Release Date : 2021-07-01

Modeling Operation And Analysis Of Dc Grids written by Alejandro Garces and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-01 with Science categories.

Modeling, Operation, and Analysis of DC Grids presents a unified vision of direct current grids with their core analysis techniques, uniting power electronics, power systems, and multiple scales of applications. Part one presents high power applications such as HVDC transmission for wind energy, faults and protections in HVDC lines, stability analysis and inertia emulation. The second part addresses current applications in low voltage such as microgrids, power trains and aircraft applications. All chapters are self-contained with numerical and experimental analysis. Provides a unified, coherent presentation of DC grid analysis based on modern research in power systems, power electronics, microgrids and MT-HVDC transmission Covers multiple scales of applications in one location, addressing DC grids in electric vehicles, microgrids, DC distribution, multi-terminal HVDC transmission and supergrids Supported by a unified set of MATLAB and Simulink test systems designed for application scenarios

Stability Analysis Flexible Control And Optimal Operation Of Microgrid

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Author : Yong Li
language : en
Publisher: Springer Nature
Release Date : 2023-04-19

Stability Analysis Flexible Control And Optimal Operation Of Microgrid written by Yong Li and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-19 with Technology & Engineering categories.

This book intends to report the new results of the microgrid in stability analysis, flexible control and optimal operation. The oscillatory stability issue of DC microgrid is explored and further solved. Flexible and stable voltage & frequency control of microgrid is put forward considering the distributed generations or distributed energy storages. The optimal operation of multi-energy is researched in view of economic efficiency and low-carbon development. The results of this book are original from authors who carry out the related research together for a long time, which is a comprehensive summary for authors’ latest research results. The book is likely to be of interest to university researchers, electrical engineers and graduate students in power systems, power electronics, renewable energy and microgrid.

Dc Hybrid Micro Grids

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Author : Lucian Mihet-Popa
language : en
Publisher:
Release Date : 2021

Dc Hybrid Micro Grids written by Lucian Mihet-Popa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.

This book is a printed version of the papers published in the Special Issue “DC & Hybrid Microgrids” of Applied Sciences. This Special Issue, co-organized by the University of Pisa, Italy and Østfold University College in Norway, has collected nine papers and the editorial, from 28 submitted, with authors from Asia, North America and Europe. The published articles provide an overview of the most recent research advances in direct current (DC) and hybrid microgrids, exploiting the opportunities offered by the use of renewable energy sources, battery energy storage systems, power converters, innovative control and energy management strategies.