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This book discusses relevant microgrid technologies in the context of integrating renewable energy and also addresses challenging issues. The authors summarize long term academic and research outcomes and contributions. In addition, this book is influenced by the authors' practical experiences on microgrids (MGs), electric network monitoring, and control and power electronic systems. A thorough discussion of the basic principles of the MG modeling and operating issues is provided. The MG structure, types, operating modes, modelling, dynamics, and control levels are covered. Recent advances in DC microgrids, virtual synchronousgenerators, MG planning and energy management are examined. The physical constraints and engineering aspects of the MGs are covered, and developed robust and intelligent control strategies are discussed using real time simulations and experimental studies.

<p><b>A PRACTICAL GUIDE TO MICROGRID SYSTEMS ARCHITECTURE, DESIGN TOPOLOGIES, CONTROL STRATEGIES AND INTEGRATION APPROACHES</b> <p><i>Microgrid Planning and Design</i> offers a detailed and authoritative guide to microgrid systems. The editors &#150; noted experts on the topic &#150; explore what is involved in the design of a microgrid, examine the process of mapping designs to accommodate available technologies and reveal how to determine the efficacy of the final outcome. This practical book is a compilation of collaborative research results drawn from a community of experts in 8 different universities over a 6-year period. <p><i>Microgrid Planning and Design</i> contains a review of microgrid benchmarks for the electric power system and covers the mathematical modeling that can be used during the microgrid design processes. The authors include real-world case studies, validated benchmark systems and the components needed to plan and design an effective microgrid system. This important guide: <ul> <li>Offers a practical and up-to-date book that examines leading edge technologies related to the smart grid</li> <li>Covers in detail all aspects of a microgrid from conception to completion</li> <li>Explores a modeling approach that combines power and communication systems</li> <li>Recommends modeling details that are appropriate for the type of study to be performed</li> <li>Defines typical system studies and requirements associated with the operation of the microgrid</li> </ul> <p>Written for graduate students and professionals in the electrical engineering industry, <i>Microgrid Planning and Design</i> is a guide to smart microgrids that can help with their strategic energy objectives such as increasing reliability, efficiency, autonomy and reducing greenhouse gases.

The smart grid is enabling the collection of massive amounts of high-dimensional and multi-type data about the electric power grid operations, by integrating advanced metering infrastructure, control technologies, and communication technologies. However, the traditional modeling, optimization, and control technologies have many limitations in processing the data; thus, the applications of artificial intelligence (AI) techniques in the smart grid are becoming more apparent. This survey presents a structured review of the existing research into some common AI techniques applied to load forecasting, power grid stability assessment, faults detection, and security problems in the smart grid and power systems. It also provides further research challenges for applying AI technologies to realize truly smart grid systems. Finally, this survey presents opportunities of applying AI to smart grid problems. The paper concludes that the applications of AI techniques can enhance and improve the reliability and resilience of smart grid systems.

Because of the development of smart grid technology, today's power grid infrastructures are increasingly and heavily coupled with communication networks for many new and existing power applications. The interdependent relationship between the two systems, in which power control relies on the communication system to deliver control and monitoring messages and network devices require power supplies from the electrical grid, brings challenges in the effort to build a highly resilient integrated infrastructure. In this work, the authors summarise existing research on power grid resilience enhancement with the consideration of the interdependencies between power systems and communication networks. They categorise these works according to stages of resilience enhancement (i.e. failure analysis, vulnerability analysis, failure mitigation, and failure recovery) and methodologies (i.e. analytical solutions, co‐simulation, and empirical studies). They also identify the limitations of existing works and propose potential research opportunities in this demanding area.

Grid integration of solar photovoltaic (PV) systems and electric vehicles (EVs) has been increasing in recent years, mainly with two motivations: reducing energy cost, and reducing emission. Several research studies focuses on the individual impact of grid integration of PVs and EVs. However, it is worth noting that with the increasing penetration of PVs and EVs, the power grid will be experiencing the combined impact of PV–EV integration. To present a thorough understanding, this study first presents a detailed study on the impact of grid integration of PVs and EVs individually, followed by combined impact of PV and EV, on the aspects of grid stability, power quality and energy economics. It has been identified from the literature review that individually PVs and EVs can negatively affect the grid stability and power quality due to the intermittent nature of PV energy and uncertainty of EV load. However, several research works have reported that coordinated operation of the PVs and EVs can negate the issues arising due to individual integration of PVs and EVs. Furthermore, large‐scale penetration of PVs and EVs are expected in future energy market, and coordinated operation of them can potentially help lowering energy costs and carbon footprint.

Big data has potential to unlock novel groundbreaking opportunities in power grid that enhances a multitude of technical, social, and economic gains. As power grid technologies evolve in conjunction with measurement and communication technologies, this results in unprecedented amount of heterogeneous big data. In particular, computational complexity, data security, and operational integration of big data into power system planning and operational frameworks are the key challenges to transform the heterogeneous large dataset into actionable outcomes. In this context, suitable big data analytics combined with visualization can lead to better situational awareness and predictive decisions. This paper presents a comprehensive state‐of‐the‐art review of big data analytics and its applications in power grids, and also identifies challenges and opportunities from utility, industry, and research perspectives. The paper analyzes research gaps and presents insights on future research directions to integrate big data analytics into power system planning and operational frameworks. Detailed information for utilities looking to apply big data analytics and insights on how utilities can enhance revenue streams and bring disruptive innovation are discussed. General guidelines for utilities to make the right investment in the adoption of big data analytics by unveiling interdependencies among critical infrastructures and operations are also provided.

<p>Microgrids are the most innovative area in the electric power industry today. Future microgrids could exist as energy-balanced cells within existing power distribution grids or stand-alone power networks within small communities.<br /> A definitive presentation on all aspects of microgrids, this text examines the operation of microgrids &#8211; their control concepts and advanced architectures including multimicrogrids. It takes a logical approach to overview the purpose and the technical aspects of microgrids, discussing the social, economic and environmental benefits to<br /> power system operation. The book also presents microgrid design and control issues, including protection, and explains how to implement centralized and decentralized control strategies.</p> <p>Key features:<br /> &#8226;&#160;original, state-of-the-art research material written by international respected contributors<br /> &#8226;&#160;unique case studies demonstrating success stories from real-world pilot sites from Europe, the Americas, Japan and China<br /> &#8226;&#160;examines market and regulatory settings for microgrids, and provides evaluation results under standard test conditions<br /> &#8226;&#160;a look to the future by well-known experts &#8211; technical solutions to maximize the value of distributed energy, along with the principles and criteria for developing commercial and regulatory frameworks for microgrids<br /> &#8226;&#160;a companion website hosting full colour versions of the figures in the book</p> <p>Offering broad yet balanced coverage, this collaborative volume is an entry point to this very topical area of power delivery for electrical power engineers familiar with medium and low voltage distribution systems, utility operators in microgrids and power systems researchers and academics. It is also a useful reference for system planners<br /> and operators, manufacturers and network operators, government regulators and postgraduate power systems students.</p>

Energy storage systems, for instance, battery - based energy storage and supercapacitor - based energy storage, have complex electrical characteristics and dynamic behavior. The transient process in the power grid typically takes place on a time scale ranging from milliseconds to seconds, which requires the energy storage system to respond quickly and stabilize the power grid. In this study, the performance characteristics of the new energy storage technology are analyzed, and the application scheme is designed. Based on this, a new energy storage model is constructed by battery model, charge and discharge control model and energy management model. The outcomes indicate that the novel energy storage technology is capable of remarkably enhancing the transient stability of the power grid. In the event of power grid failure, new energy storage technology can quickly respond, provide necessary power support, effectively suppress power grid voltage and frequency fluctuations, speed up the restoration process.

Integration of dynamic grid support is required for distributed power systems that are interconnected with medium voltage grids. This study proposes a comprehensive control solution to enhance fault ride through (FRT) capability for utility-scale photovoltaic (PV) power plants. Based on positive and negative sequence control schemes and PV characteristics, the approach alleviates dc-bus double-line-frequency ripples, reduces voltage stress on inverter power switches and DC-link capacitors, and minimises undesirable low-order voltage and current harmonics that are presented on the ac side. The study proposes a new feature to achieve superior FRT performance by using the overload capability of grid-tied inverters. A weak electric grid is used for the test case including a wind turbine induction generator, diesel engine driven synchronous generators and various loads. A comprehensive simulation verified the capability of the proposed control schemes for mitigating the voltage dip, enhancing the voltage response and further improving the stability of interconnected distributed generation in reaction to severe unbalanced voltage conditions because of asymmetrical grid faults.

This book addresses the need to understand the development, use, construction, and operation of smart microgrids (SMG). Covering selected major operations of SMG like dynamic energy management, demand response, and demand dispatch, it describes the design and operational challenges of different microgrids and provides feasible solutions for systems. Smart Micro Grid presents communication technologies and governing standards used in developing communication networks for realizing various smart services and applications in microgrids. An architecture facilitating bidirectional communication for smart distribution/microgrid is brought out covering aspects of its design, development and validation. The book is aimed at graduate, research students and professionals in power, power systems, and power electronics.Features: Covers a broad overview of the benefits, the design and operation requirements, standards and communication requirements for deploying microgrids in distribution systems. Explores issues related to planning, expansion, operation, type of microgrids, interaction among microgrid and distribution networks, demand response, and the technical requirements for the communication network. Discusses current standards and common practices to develop and operate microgrids. Describes technical issues and requirements for operating microgrids. Illustrates smart communication architecture and protocols.