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Dynamic stability basically deals with the interactions between the system's components. Following a disturbance, the system's variables undergo transitions that can induce oscillations in active and reactive power generation, resulting in the occurrence of voltage oscillatory modes and frequency deviation in the system. Depending on the entity of the disturbance, the small- or large-signal stability of the system under consideration can be investigated. The introduction of RES-based generation that does not participate in the network services (i.e., frequency and voltage regulation) due to lack of special controls will undoubtedly affect both the overall frequency and voltage stability. Large-scale transient stability is also a concern not to be overlooked: inverter-based wind and solar generation have different angle/speed swing behaviors with respect to traditional generation due to reduced inertia, different voltage swing behaviors due to different voltage control systems, different power flow patterns, and different displacements of synchronous generation at key locations. Therefore, although power system stability and dynamics have played a very central role in the management and study of electrical power systems thus far, it is also true that the emerging scenario requires new methodologies, technologies, and analyses. In this light, the current Special Issue aims to collect contributions (i.e., research papers and review articles) on power system dynamics and stability from experts in academia and industry.

Technology: general issues --- History of engineering & technology --- power system stability --- inertia estimation --- PMU --- microgrids --- frequency control --- grid-forming --- 100% converter-interfaced generation --- virtual synchronous machine --- forced oscillation --- inverter-based resources (IBRs) --- grid vulnerability analysis --- active power modulation --- virtual inertia --- fast frequency measurement --- fast frequency regulation --- distributed energy resources --- ancillary services --- power hardware-in-the-loop --- legacy resources --- large perturbation angle stability --- small perturbation angle stability --- voltage stability --- synthetic inertia --- demand response --- reactive compensation --- power system restoration --- primary frequency control --- frequency nadir estimation --- low inertia systems --- real-time dynamic simulation --- national power grid --- cyber physical system (CPS) --- co-simulation --- battery energy storage system (BESS) --- energy management system (EMS) --- load modelling --- line modelling --- power system analysis --- transient stability --- small-signal stability --- inverter-based resources --- modular multilevel converters --- primary frequency regulation --- battery energy storage system --- Ornstein–Uhlenbeck stochastic process --- compound poisson stochastic process --- frequency stability --- rotor angle stability --- power system inertia --- converter-interfaced generation --- renewable power generators

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This reprint presents various aspects of the future grid, which is the next generation of the electrical grid and will enable the smart integration of conventional, renewable, and distributed power generation, energy storage, transmission and distribution, and demand management. Renewable energy is crucial in transitioning to a less carbon-intensive economy and a more sustainable energy system. The high penetration and uncertain power outputs of renewable energy pose great challenges to the stable operation of energy systems. The deployment of the smart grid is revolutionary, and also imperative around the world. It involves and deals with multidisciplinary fields such as energy sources, control systems, communications, computational generation, transmission, distribution, customer operations, markets, and service providers. Smart grids are emerging in both developed and developing countries, with the aim of achieving a reliable and secure electricity supply. Smart grids will eventually require standards, policy, and a regulatory framework for successful implementation. This reprint addresses the emerging and advanced green energy technologies for a sustainable and resilient future grid, and provides a platform to enhance interdisciplinary research and share the most recent ideas.

Technology: general issues --- History of engineering & technology --- islanded mode --- microgrid --- decentralized control --- robust tracking --- invariant set --- thermal energy storage --- parabolic dish --- latent heat --- phase change material --- heat transfer fluid --- bio-inspired algorithms --- wireless sensor network --- genetic algorithm --- particle swarm optimization --- advanced metering infrastructure --- blockchain --- Ethereum --- isolated DC–DC converter --- photovoltaics --- LLC resonant converter --- dual-bridge --- wide voltage range --- power optimizer --- coordinated control --- vehicle-to-grid --- primary frequency control --- secondary frequency control --- state of charge --- decentralized --- Simulink model --- dimensionality reduction --- simple linear regression --- multiple linear regression --- polynomial regression --- load forecasting --- VSC (voltage source converter) --- PLL (Phase-Locked Loop) --- weak grid --- small signal stability --- eigenvalues --- demand-side management --- low-power consumer electronic appliances --- low-voltage distribution system --- non-intrusive identification of appliance usage patterns --- power quality --- smart home --- true power factor --- total harmonic distortion --- renewable energy sources --- energy management system --- communication technologies --- microgrid standards --- third-order sliding mode control --- asynchronous generators --- variable speed dual-rotor wind turbine --- direct field-oriented control --- integral-proportional --- transformer --- internal fault currents --- magnetic inrush currents --- extended Kalman filter (EKF) algorithm --- harmonic estimation --- DC microgrid --- fault --- cluster --- DC/DC converter --- fault current limiter (FCL) --- multi-objective --- renewable energy --- profit-based scheduling --- Equilibrium Optimizer --- smart grid --- campus microgrid --- batteries --- prosumer market --- distributed generation --- renewable energy resources --- energy storage system --- distributed energy resources --- demand response --- load clustering techniques --- sizing methodologies --- digital signal processing --- green buildings --- spectral analysis --- spectral kurtosis --- life-cycle cost --- optimal scheduling --- reinforcement learning --- enabling technologies --- energy community --- smart meter --- nanogrid --- platform --- power cloud --- n/a --- isolated DC-DC converter

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Power electronics technology is still an emerging technology, and it has found its way into many applications, from renewable energy generation (i.e., wind power and solar power) to electrical vehicles (EVs), biomedical devices, and small appliances, such as laptop chargers. In the near future, electrical energy will be provided and handled by power electronics and consumed through power electronics; this not only will intensify the role of power electronics technology in power conversion processes, but also implies that power systems are undergoing a paradigm shift, from centralized distribution to distributed generation. Today, more than 1000 GW of renewable energy generation sources (photovoltaic (PV) and wind) have been installed, all of which are handled by power electronics technology. The main aim of this book is to highlight and address recent breakthroughs in the range of emerging applications in power electronics and in harmonic and electromagnetic interference (EMI) issues at device and system levels as discussed in ?robust and reliable power electronics technologies, including fault prognosis and diagnosis technique stability of grid-connected converters and ?smart control of power electronics in devices, microgrids, and at system levels.

Q-factor --- lithium-ion power battery pack --- electromagnetic field (EMF) --- expert systems --- total harmonic distortion (THD) --- current-fed inverter --- rotor design --- class-D amplifier --- LCL-S topology --- current switching ripple --- system in package --- energy storage modelling --- smart micro-grid --- embedded systems --- equivalent inductance --- SHIL --- permanent magnet --- static var generator (SVG) --- permanent magnet synchronous motor (PMSM) --- control strategy and algorithm --- digital control --- zero-voltage switching (ZVS) --- SOC estimator --- electric power --- optimal design --- electromagnetic field interference (EMI) --- line frequency instability --- analog phase control --- five-phase permanent magnet synchronous machine --- distribution generation --- leakage inductance --- adjacent two-phase open circuit fault (A2-Ph) --- chaotic PWM --- electric vehicles --- CMOS chaotic circuit --- series active filter --- cascaded topology --- total demand distortion --- efficiency motor --- triangular ramp generator --- 4T analog MOS control --- inductive coupling --- induction machines --- nanocrystalline core --- semi-active bridge --- multi-level control --- simulation models --- voltage source inverters (VSI) --- battery management system BMS --- voltage source converter --- current control loops --- droop control --- particle swarm optimization --- variable control gain --- state of charge SoC --- extended Kalman filter --- transient control --- multi-objective optimization --- composite equalizer --- converter --- DHIL --- five-leg voltage source inverter --- axial flux machines --- bifurcation --- active receivers --- field programmable gate array --- Nyquist stability analysis --- electric vehicle --- static compensator --- stability --- common-mode inductor --- DC–DC converters --- support vector machines --- electromagnetic compatibility --- real-time simulation --- passive equalization --- matrix converters --- wireless power transfer --- digital phase control --- compensation topology --- volt-per-hertz control (scalar control) --- switching losses --- voltage control --- hybrid converter --- bidirectional converter --- coupling factor --- selective harmonic elimination method --- power electronics --- soft switching --- optimization design --- multilevel inverter --- five-phase machine --- phase-shift control --- lithium-ion battery --- voltage boost --- VPI active damping control --- parameter identification --- electrical engineering communications --- current control --- DC–DC conversion --- battery management system --- GaN cascode --- single-switch --- high-frequency modeling --- synchronous motor --- power quality --- water purification --- power factor correction (PFC) --- composite active vectors modulation (CVM) --- digital signal controller --- line start --- power density --- hardware in loop --- n/a --- fault diagnosis --- multi-level converter (MLC) --- induction motor --- dual three-phase (DTP) permanent magnet synchronous motors (PMSMs) --- neural networks --- electromagnetic interference filter --- battery chargers --- power converter --- harmonics --- multiphase space vector modulation --- torque ripple --- power factor correction --- electrical drives --- modular multilevel converter (MMC) --- active power filter --- double layer capacitor (DLC) models --- PMSG --- response time --- resonator structure --- floating-point --- effect factors --- DC-link voltage control --- sliding mode control --- phasor model technique --- wireless power transfer (WPT) --- slim DC-link drive --- fault-tolerant control --- lithium-ion batteries --- DC-AC power converters --- conducting angle determination (CAD) techniques --- variable speed pumped storage system --- impedance-based model --- one cycle control --- renewable energy sources --- series-series compensation --- cogging torque --- active rectifiers --- three-level boost converter (TLBC) --- DC-link cascade H-bridge (DCLCHB) inverter --- battery energy storage systems --- filter --- power management system --- improved extended Kalman filter --- dead-time compensation --- disturbance observer --- reference phase calibration --- frequency locking --- space vector pulse width modulation (SVPWM) --- predictive controllers --- nine switch converter --- transmission line --- spread-spectrum technique --- energy storage --- electromagnetic interference --- renewable energy resources control --- harmonic linearization --- misalignment --- plug-in hybrid electric vehicles --- high level programing --- nearest level modulation (NLM) --- magnetic equivalent circuit --- EMI filter --- permanent-magnet machines --- real-time emulation --- switched capacitor --- back EMF --- fixed-point --- HF-link MPPT converter --- condition monitoring --- WPT standards --- switching frequency --- switching frequency modelling --- high frequency switching power supply --- field-programmable gate array --- three-phase bridgeless rectifier --- ice melting --- AC–DC power converters --- hybrid power filter --- PSpice --- microgrid control --- total harmonic distortion --- grid-connected inverter --- dynamic PV model --- fuzzy --- boost converter --- SiC PV Supply --- voltage doubling --- nonlinear control --- distributed control --- power system operation and control --- one phase open circuit fault (1-Ph) --- direct torque control (DTC) --- battery modeling --- non-linear phenomena --- frequency-domain analysis --- advanced controllers --- vector control --- fixed-frequency double integral sliding-mode (FFDISM) --- power converters --- modulation index --- DC-DC buck converter --- small signal stability analysis --- active equalization --- voltage source inverter --- hardware-in-the-loop --- current source --- synchronization --- grid-connected VSI --- synchronous generator --- fault tolerant control --- DC-DC converters --- DC-DC conversion --- AC-DC power converters