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Publications related to Power Systems (10,000)
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Research Proposal
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Dear researches and colleagues, We are serving as Guest Editors for a Special Issue entitled " Design and Application of DC–DC Converters in Power Systems " for Energies Journal (IF 3.004). Please find more information at: https://www.mdpi.com/journal/energies/special_issues/Design_and_Application_of_DC_DC_Converters_in_Power_Systems.This Special I...
Article
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Natural disasters such as storms usually bring significant damages to distribution grids. This paper investigates the optimal routing of utility vehicles to restore outages in the distribution grid as fast as possible after a storm. First, the post-storm repair crew dispatch task with multiple utility vehicles is formulated as a sequential stochast...
Article
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Conventional protection schemes have essentially been developed for power systems dominated by synchronous generators. High penetration of power-electronic interfaced renewable energy sources (PEIRESs) can adversely impact the reliability of protection systems, thereby increasing the risk of widespread disturbances. This paper proposes a robust wid...
Article
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Frequency control of an interconnected power system in the presence of wind integration is complex since wind speed/power variations also affect system frequency in addition to load perturbations. Therefore, improving existing control schemes is necessary to maintain a stable frequency in such complex power system scenarios. In this paper, a new 2-...
Article
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Power system operators and planners are dealing both with the integration of unparalleled levels of variable renewable energy sources and deep uncertainties that originate from new technological developments, changing regulatory frameworks, unknown investment, operational costs of technologies, etc. An inadequate representation of the uncertainties...
Article
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Traditional grid has been extensively studied for system security. For freestanding renewable energy-based minigrid, a three-source stand-alone minigrid is in this study examined for system security under large disturbances. By real-time simulation, rotor responses of the generators and voltage characteristics of the buses, at sudden load change an...
Article
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As the renewable-based DC power systems are expected to prevail in the near future, stochastic power and weakness of fault ride-through capability are essential issues in renewable-based DC power systems that urgently need to be addressed. This paper proposes a novel triple-port active bridge (TAB)-based DC unified power quality conditioner (DC-UPQ...
Article
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Forced disturbances (FDs) with non-stationary frequencies can sequentially resonate from electromechanical modes (EMs) to sub/super synchronous modes (SSMs) and thus lead to non-stationary forced oscillations (FOs). Previous FO damping controllers designed for specified frequency bands may not be able to suppress the non-stationary FOs. This paper...
Article
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The increasing penetration of renewable energy sources (RES) into modern power systems may reflect the problem of frequency stabilization. Therefore, this paper proposes a new combined Fuzzy Fractional-Order Proportional-Integral (FOPI) and Tilt-Integral-Derivative (TID) controller to improve the frequency response of a hybrid power system. The pro...
Article
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With new technologies being integrated into the existing power system infrastructure and current plants aging, it is increasingly important to maintain accurate dynamic models. A method to individually validate plant component models is proposed, and then is applied to the Mostar hydroelectric power plant using field data obtained during maintenanc...
Article
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The prevalent paradigm of power system operations has mostly centered on placing all the intelligence in resources that are connected to transmission networks, whereas distribution grids are often not accounted for in-depth and put aside by only approximating some limited behaviors. Nonetheless, proliferation of distributed energy resources, e.g. s...
Article
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The ongoing rapid increase in the integration of variable and uncertain renewable energy sources calls for enhancing the ways of providing flexibility to power grids. To this end, we propose an optimal approach for utilizing electric vehicle parking lots to provide flexibility at the distribution level. Accordingly, we present a day-ahead schedulin...
Article
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In recent years, voltage sags are one of the most critical research issues in the field of power quality. With the all-embracing study of voltage sag mitigation measures and equipment, the classification of voltage sag mitigation measures and equipment is becoming more and more necessary. Reasonable classification methods not only can guide users t...
Article
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When it comes to dealing with power outages, hybrid grid-connected systems seem like a promising option, especially for underdeveloped nations. For supplying power during periods of unpredictability, a PV/battery system connected to the grid is considered in this study. Batteries were used as a backup system to compensate for main grid outages in t...
Article
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The virtual synchronous generator (VSG) provides a promising solution to integrate a high penetration of inverter-based sources into the power system without threatening the frequency and voltage stability, which may solve the problem that the traditional maximum power point tracking (MPPT) control cannot provide the necessary ancillary. Due to dif...
Article
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With the growing penetration of converter-interfaced generation in power systems, the dynamical behavior of these systems is rapidly evolving. One of the challenges with converter-interfaced generation is the increased number of equations, as well as the required numerical timestep, involved in simulating these systems. Within this work, we explore...
Article
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4E (energy, exergy, economic, and environmental) analysis of a municipal wastewater treatment plant (WWTP) including an integrated system with anaerobic digesters and combined heat and power units (AD-CHP) is performed here. This type of analysis was required for AD-CHP system at Tehran WWTP to estimate the plant energy/exergy efficiency, to estima...
Article
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With the explosive growth of distributed renewable energy connected to the power system, the application of AC-DC hybrid distribution network with power electronic transformer (PET) becomes more and more extensive. An equivalent loss model is formulated from the perspective of the internal topology of PET. Then, a novel PET power flow model is esta...
Article
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This paper introduces a novel technique for optimal distribution system (DS) planning with distributed generation (DG) systems. It is being done to see how active and reactive power injections affect the system’s voltage profile and energy losses. DG penetration in the power systems is one approach that has several advantages such as peak savings,...
Article
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Uncertainty is one of the core challenges posed by renewable energy integration in power systems, especially for solar photovoltaic (PV), given its dependence on meteorological phenomena. This has motivated the development of numerous forecasting tools, recently focused on physics informed machine learning (ML). Virtually, every paper claims to pro...
Article
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Due to the prolific integration of Renewable Energy Sources (RES) worldwide, power system dynamics have been altered extensively. Conventionally, the rotating mass of the Synchronous Generators (SGs) used to supply the stored kinetic energy following a generation deficit. However, because of widespread installation of RES, these conventional SGs ar...
Article
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The dynamic thermal rating (DTR) system can safely determine the thermal limits of power components on the basis of environmental conditions. Studies have shown that the DTR system can provide ratings that are higher than the traditional static thermal rating (STR) 80% to 90% of the time; 50% of the time, DTR is 15% to 30% higher than STR. Hence, t...
Article
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Peer-to-peer energy (P2P) energy trading is the vital paradigm of power systems operation and control. P2P energy trading is a concept of buying and selling the generated electrical energy from the own renewable energy resources to the micro-grid connected houses, offices and factories. P2P energy trading also allows the users to decide to whom the...
Article
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The transition to a renewable energy system challenges power grid operation and stability. Secondary control is key in restoring the power system to its reference following a disturbance. Underestimating the necessary control capacity may require emergency measures, such that a solid understanding of its predictability and driving factors is needed...
Article
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The objective of this paper is to enhance the frequency resilience and wind penetration level of a low inertia power system by utilising frequency responsive Thyristor Controlled Series Capacitor (TCSC). In recent years, wind power integration has become prolific in numerous power grids around the world. As such, Synchronous Generators (SGs) are be...
Article
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Integration of power electronics-based converter-interfaced distributed generators (DGs) into the existing power systems have created several power quality related challenges. These challenges include reduced voltage rigidness at the point of common coupling (PCC), total harmonic distortion (THD), lack of inertial response and power imbalance due t...
Article
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In this research studies, the on-grid photovoltaic system capacity is sized based on the maximum energy self-consumption supplied to the household. The proposed system is designed and optimised for the house located in Diyala state, Iraq. The investigation is carried out using experimental data for electrical load and metrological data (solar irrad...
Article
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Approximate dynamic programming (ADP) is a promising approach for power system scheduling and dispatch under uncertainties. This paper presents an innovative ADP-based dispatch method for a microgrid with intermittent renewable generation, battery energy storage systems, and controllable distributed generators. The proposed ADP algorithm is based o...
Article
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Technological advancements have made intelligent monitoring devices such as integrated circuits and wireless communications smaller, lighter, and more energy-efficient. When combined with WBAN (Wireless Body Area Network), these devices can be connected seamlessly with Smart Grid and Renewable Energy Systems. Devices of this type are compact and in...
Article
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This paper presents an integrated generation and transmission expansion planning (G&TEP) model embedding with energy storage systems (ESSs) to reduce G&TEP projects' cost, enhance power system's reliability, decrease carbon emission, and increase the penetration of renewable energy systems. ESSs are a key component of modern power grids for their a...
Article
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Low-inertia power systems can suffer from high rates of change of frequency during imbalances between the generation and the demand. Fast-reacting storage systems such as a Flywheel Energy Storage System (FESS) can help maintain the frequency by quickly reacting to frequency disturbances, with no concern over its lifetime. While a modern high-speed...
Article
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Today's power systems are characterized by a considerable penetration of electricity production from renewable energy sources. However, renewable energy sources are characterized by intermittent non-stationary output, which leads to more complicated regulation of voltage, power flows, and frequency in power systems. Energy storage systems (ESSs) ha...
Conference Paper
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The Organic Rankine Cycle (ORC) is a thermal driven power cycle operated with an organic working fluid. It is especially suitable to exploit low to medium temperature heat sources at small to medium size capacity ranges. For these conditions, it outperforms the standard Clausius Rankine Cycles. Suitable heat sources can be either renewable in natur...
Article
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Load forecasting plays an essential role in power system planning. The efficiency and reliability of the whole power system can be increased with proper planning and organization. Residential load forecasting is indispensable due to its increasing role in the smart grid environment. Nowadays, smart meters can be deployed at the residential level fo...
Article
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Due to the growing concerns regarding environmental and economic issues in power systems, nowadays the application of renewable energy sources (RES), especially wind energy has been increased. However, the increasing penetration of wind power plants (WPPs) into the grid has raised numerous challenges including output power fluctuations as well as t...
Article
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Residential electric vehicle (REV) is an advanced technology with a rapid growth rate in transportation and electric grids. One key challenge in the operation of REVs is the necessity of the accurate, reliable, and practical forecasting method to provide accurate information of the charging profile in the look-ahead hours. In power system, in order...
Article
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The paper focuses on the accuracy and stability of implicit numerical methods when utilized for the Time Domain Integration (TDI) of power systems with inclusion of time delays. In particular, a small-disturbance analysis technique is proposed to evaluate the numerical distortion that TDI methods induce to the dynamic modes of power systems modeled...
Article
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Transient stability affected by renewable energy sources integration due to reductions of system inertia and uncertainties associated with the expected generation. The ability to manage relation between the available big data and transient stability assessment (TSA) enables fast and accurate monitoring of TSA to prepare the required actions for sec...
Article
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Increased penetration of photovoltaic (PV) in the power system leads to a reduction in system inertia. This reduction causes a high-frequency nadir and a high rate of change of frequency (ROCOF) during disturbances, which can result in load shedding or pole slipping and cascading outages. Therefore, a lot of research has been conducted to enhance t...
Article
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Considering its unique operational and power consumption characteristics, internet data center (IDC) has been intensively investigated as a promising candidate to provide flexibility for electric power system. In this paper, a data-driven flexibility assessment scheme for IDC is proposed by investigating the temporal shifting capability of periodic...
Article
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In power systems, large-scale optimisation problems are extensively used to plan for capacity expansion at the supra-national level. However, their cost-optimal solutions are often not exploitable by decision-makers who are preferably looking for features of solutions that can accommodate their different requirements. This paper proposes a generic...
Article
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Motivated by the transition to renewable energies in the context of ongoing climate change, offshore wind energy is of rising importance for the energy provision on national and international level. This trend, though, puts pressure on the safety and security community to provide appropriate analyses and solutions in regard to safety and security t...
Article
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With the rapid development of re-electrification, traditional load forecasting faces a significant increase of influencing factors. Existing literature focuses on examining the influencing factors related to load profiles in order to improve the prediction accuracy. However, a large number of redundant features may lead to the overfitting of the fo...
Article
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At present, the penetration of wind power generation is increasing remarkably worldwide, and the accurate wind power forecasting (WPF) is essential to ensure the reliability and economy of the power system. Most of the current work of WPF only capture temporal correlation in the time domain but ignore the spatial correlation. In this study, a spect...
Article
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Heating, ventilation, and air conditionings (HVACs) of commercial buildings bear a large amount of weight in total load and have emerged as a major flexible resource participating in power systems. HVACs can be aggregated in an entity to participate in power system dispatching. First, refrigeration and air systems modelling of HVACs is conducted. S...
Article
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With the development and application of information communication technology, it makes the potential threat of cyber-attacks prominent increasingly that the power information network and physical network are becoming deeply integrated. In the energy management system (EMS), the state estimation module is the main target of hackers' for false data i...
Article
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Accurate load forecasting can efficiently reduce the day-ahead dispatch stress of power system or microgrid. The overview of load forecasting based on artificial intelligence models are comprehensively summarized in this paper. As the steps of load forecasting based on artificial intelligence model mainly include data processing, setting up forecas...
Article
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We embellish a mixed-integer program that prescribes a set of renewable energy, conventional generation, and storage technologies to procure, along with a corresponding dispatch strategy. Specifically, we add combined heat and power to this set. The model minimizes fixed and operational costs less incentives for the use of various technologies, sub...
Article
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A novel hybrid algorithm developed by merging atom search optimization and simulated annealing algorithms is presented. The constructed improved algorithm, named as improved atom search optimization algorithm, was proposed for optimizing a power system stabilizer adopted in a single-machine infinite-bus power system. The evaluations were initially...
Article
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This paper examines the small‐disturbance stability in planning a concentrating solar power collecting system (CSPCS) with multiple concentrating solar power (CSP) generation plants, which are modelled as synchronous generators (SGs). The examination indicates that an oscillation mode of the CSPCS gradually moves to the right half of complex plane...
Article
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As demand for electric vehicles (EV) grows, interest in vehicle‐to‐grid (V2G) is increasing. Although V2G provides additional flexibility for power systems, it can be an inconvenience for the EV owner and shorten the cycle life of EV batteries. In this paper, we propose a power‐imbalance‐based droop control (PIDC) for V2G, which uses estimated acti...
Article
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The article describes a student capstone design project completed by a team of five students and implemented by a resort and casino in Northeastern Pennsylvania (NEPA). This project was completed within the framework of project-based learning (PBL). Students had the opportunity to apply the knowledge that they learned in the classroom in a real-wor...
Article
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This article proposes a new metaheuristic algorithm called Archimedes optimization algorithm (AOA) for solving optimization problems of optimal power flow (OPF) utilizing the renewable energy sources (RES) for minimizing different single-objective and multi-objective functions based on minimization of fuel cost, power losses of transmission lines,...
Article
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Carbon capture, utilization, and storage (CCUS) is identified as a critical decarbonization technology that is expected to be applied globally on a large scale, especially in a thermal power-dominated power system. To achieve a carbon peak in the power sector, assessing the environmental and economic effects, including the costs of CCUS application...
Article
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This paper proposes a variant of the Gray Wolf Optimizer (GWO) called the Cross-Dimensional Coordination Gray Wolf Optimizer (CDCGWO), which utilizes a novel learning technique in which all prior best knowledge is gained by candid solutions (wolves) is used to update the best solution (prey positions). This method maintains the wolf's diversity, pr...
Article
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The current electrical grid is passing through a transformation process in which a new paradigm has been conceived with the name Smart Grid. Nevertheless, to successfully implement the new grid paradigm, it is necessary to count on having an adequate workforce capable of converting the smart grid idea into a reality. In this work, an educative plat...
Article
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Unpredictable occurrence of natural disasters in modern power systems has significantly increased the attentions to the outage management of multi‐microgrid (MMG) systems. In this regard, a multi‐objective two‐stage outage management scheme is presented in this paper to protect undamaged microgrids (MGs) against load curtailment and minimize the cu...
Article
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In propulsion and power systems, operating pressures are increasing to improve cycle efficiency, often reaching conditions that approach or exceed the thermodynamic critical pressure of the working fluid. A known phenomenon that occurs at supercritical pressures is supercritical heat transfer deterioration (HTD). Although this phenomenon is well st...
Article
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The technology of variable speed wind turbines is very promising in renewable power generation. It is imperative for wind turbines to gain control after grid disturbances and contribute to the stability of power grids as part of the requirements of grid codes set by grid operators in operating wind farms. Fault current limiters (FCLs) are capable o...
Article
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The goal of any well‐established deregulated power sector is to satisfy their customer by delivering the power with maintaining the best quality at a reasonable price. This paper presents the impression of the wind farm (WF) and compressed air energy storage (CAES) hybrid systems in the congested deregulated power system. The main motto of this wor...