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The deployment of distributed renewable generation and e-mobility systems is creating a demand for improved dynamic performance, flexibility, and resilience in electrical grids. Various energy storages, such as stationary and electric vehicle batteries, together with power electronic interfaces, will play a key role in addressing these requests thanks to their enhanced functionality, fast response times, and configuration flexibility. For the large-scale implementation of this technology, the associated enabling developments are becoming of paramount importance. These include energy management algorithms; optimal sizing and coordinated control strategies of different storage technologies, including e-mobility storage; power electronic converters for interfacing renewables and battery systems, which allow for advanced interactions with the grid; and increase in round-trip efficiencies by means of advanced materials, components, and algorithms. This Special Issue contains the developments that have been published b researchers in the areas of power electronics, energy management and battery storage. A range of potential solutions to the existing barriers is presented, aiming to make the most out of these emerging technologies.

Technology: general issues --- Chemical engineering --- high-gain non-inverting buck-boost converter --- continuous conduction mode (CCM) --- discontinuous conduction mode --- electric vehicles --- stationary battery energy storage system --- battery automated system --- online state estimation --- thermal modeling --- first-order model --- second-order model --- Kalman filtering --- impedance network --- Z-source --- quasi-Z-source --- voltage source inverter --- voltage distortions --- machine learning --- Kalman filter --- thermal modelling --- online prediction --- electromagnetic impedance spectroscopy --- computational cost --- ANPC converter --- EV charging --- multilevel converter --- PWM methods --- SiC MOSFETs --- residential energy storage --- battery energy storage systems --- standards --- grid interfaceconverters --- intellectual property --- bidirectional converters --- AC-DC power converters --- DC-DC powerconverters --- multilevel converters --- partial power converters ---  

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Energy storage systems have been recognized as viable solutions for implementing the smart grid paradigm, but have created challenges in terms of load levelling, integrating renewable and intermittent sources, voltage and frequency regulation, grid resiliency, improving power quality and reliability, reducing energy import during peak demand periods, and so on. In particular, distributed energy storage addresses a wide range of the above potential issues, and it is gaining attention from customers, utilities, and regulators. Distributed energy storage has considerable potential for reducing costs and improving the quality of electric services. However, installation costs and lifespan are the main drawbacks to the wide diffusion of this technology. In this context, a serious challenge is the adoption of new techniques and strategies for the optimal planning, control, and management of grids that include distributed energy storage devices. Regulatory guidance and proactive policies are urgently needed to ensure a smooth rollout of this technology. This book collects recent contributions of methodologies applied to the integration of distributed energy storage devices in smart power systems. Several areas of research (optimal siting and sizing of energy storage systems, adaption of energy storage systems to load leveling and harmonic compensation, integration for electric vehicles, and optimal control systems) are investigated in the contributions collected in this book.

decision theory --- voltage dips --- robust optimization --- Multiport Converter (MPC) --- storage --- uncertainty --- harmonics --- battery energy storage systems (BESS) --- second life batteries --- optimization --- stationary storage --- charging station --- scheduling --- Energy Storage Device (ESD) --- Grid Connected Photovoltaic Systems (GCPVS) --- plug-in --- electricity market --- economic analysis --- batteries --- distribution system --- distribution network planning --- Electric Vehicle (EV) --- active harmonic filter --- Intelligent Energy Management System (iEMS) --- battery electric vehicle --- fast charge --- microgrid planning --- EV --- planning --- BEV --- energy storage system --- decision-making --- power quality --- electrical energy storage systems --- load leveling

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The most important environmental challenge today's society is facing is to reduce the effects of CO2 emissions and global warming. Such an ambitious challenge can only be achieved through a holistic approach, capable of tackling the problem from a multidisciplinary point of view. One of the core technologies called to play a critical role in this approach is the use of energy storage systems. These systems enable, among other things, the balancing of the stochastic behavior of Renewable Sources and Distributed Generation in modern Energy Systems; the efficient supply of industrial and consumer loads; the development of efficient and clean transport; and the development of Nearly-Zero Energy Buildings (nZEB) and intelligent cities. Hybrid Energy Storage Systems (HESS) consist of two (or more) storage devices with complementary key characteristics, that are able to behave jointly with better performance than any of the technologies considered individually. Recent developments in storage device technologies, interface systems, control and monitoring techniques, or visualization and information technologies have driven the implementation of HESS in many industrial, commercial and domestic applications. This Special Issue focuses on the analysis, design and implementation of hybrid energy storage systems across a broad spectrum, encompassing different storage technologies (including electrochemical, capacitive, mechanical or mechanical storage devices), engineering branches (power electronics and control strategies; energy engineering; energy engineering; chemistry; modelling, simulation and emulation techniques; data analysis and algorithms; social and economic analysis; intelligent and Internet-of-Things (IoT) systems; and so on.), applications (energy systems, renewable energy generation, industrial applications, transportation, Uninterruptible Power Supplies (UPS) and critical load supply, etc.) and evaluation and performance (size and weight benefits, efficiency and power loss, economic analysis, environmental costs, etc.).

high gain converters --- power systems modeling --- load flow analysis --- pumped storage --- shipboard power systems --- storage --- hybrid energy storage systems (HESSs) --- buck-boost converter --- state of charge --- active power control --- rail transportation power systems --- lithium-ion batteries --- microgrids --- energy storage --- microgrid --- power-line signaling --- battery energy storage system (BESS) --- power electronic converters --- single-phase --- load modeling --- ultracapacitors --- smart home (SH) --- fault ride-through capability --- renewable energy sources --- battery management system --- multiport --- photovoltaic --- fuel cell (FC) --- DC power systems --- hybrid --- energy storage system --- micro combined heat and power (micro-CHP) system --- power quality --- solar photovoltaic --- electric vehicle (EV) --- energy storage technologies --- hybrid storage systems --- real coded genetic algorithm (RCGA) --- storage operation and maintenance costs

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The future of electric vehicles relies nearly entirely on the design, monitoring, and control of the vehicle battery and its associated systems. Along with an initial optimal design of the cell/pack-level structure, the runtime performance of the battery needs to be continuously monitored and optimized for a safe and reliable operation and prolonged life. Improved charging techniques need to be developed to protect and preserve the battery. The scope of this Special Issue is to address all the above issues by promoting innovative design concepts, modeling and state estimation techniques, charging/discharging management, and hybridization with other storage components.

History of engineering & technology --- state of charge (SOC) --- joint estimation --- lithium-ion battery --- variational Bayesian approximation --- dual extended Kalman filter (DEKF) --- measurement statistic uncertainty --- electric vehicles --- renewable energy sources --- microgrid --- economic dispatching --- capacity allocation --- cooperative optimization --- SOC --- second-order RC model --- model parameter optimization --- AUKF --- small-signal modeling --- battery energy storage system --- battery management system --- control --- stability --- dynamic response --- wireless power --- state-of-charge --- electric vehicle --- LiFePO4 batteries --- state of charge (SoC) --- Butler–Volmer equation --- Arrhenius --- Peukert --- coulomb efficiency --- back propagation neural network (BPNN) --- torque and battery distribution --- particle swarm optimization --- air-cooled BTMS --- compact lithium ion battery module --- ANN --- battery electric vehicles --- battery management --- hybrid energy storage --- n/a --- Butler-Volmer equation

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PV power plant integration into the grid has been a relevant topic of interest over the last years. Policies supported by governments, technology maturity, favorable incentives, and cost decreasing have significantly promoted the integration of PV power plants into power systems at the transmission and distribution levels. Nevertheless, some barriers remain in terms of forecasting generation, grid reliability, and power quality, which must be overcome for the massive PV integration into future power systems. Additionally, the ancillary services provided by these generation units are increasingly required by different agents to facilitate grid operation under a high proportion of renewables. Topics of interest for this Special Issue include the following areas: large-scale PV power plants, energy policies related to PV power plants, grid integration and interaction, PV power plant modeling, monitoring and case studies, communication systems for PV power plants integration, economic analyses, PV inverters and sizing analyses, new trends in PV technologies, and reviews.

incident solar radiation --- PV output power modelling --- tilt angle --- orientation --- rooftop solar --- PV generator --- power ramping --- battery energy storage --- duck curve --- hybrid dc/ac grids --- alienation coefficient --- hybrid power system network --- protection --- power system fault --- solar energy --- wind energy --- Wigner distribution function --- ancillary service --- PV Plant --- frequency-assisting --- hardware-in-the-loop --- Photovoltaic --- DER --- energy policies related to PV power plants --- economic analyses --- monitoring and case studies --- distribution network --- hierarchical voltage control --- reactive power control --- RES --- SVR --- PV --- optimal design --- photovoltaic power plants --- hybrid optimisation --- LCOE --- PV module reduction --- photovoltaic systems --- synchronization systems --- phase-locked loops --- islanding detection methods