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Accurate computing paradigm for decoupled harmonic load flow analysis with CONOPT solvers for non-sinusoidal radial distribution systems Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-22 Stevan Rakočević, Martin Ćalasan, Miloš Milovanović, Shady H.E. Abdel Aleem
In this article, a novel method for performing Decoupled Harmonic Load Flow (DHLF) analysis in radial distribution systems is presented. The proposed method involves solving load flow equations for both fundamental and higher frequencies as constrained minimization problems utilizing a nonlinear programming (NLP) CONOPT solver integrated into the General Algebraic Modeling Systems (GAMS) environment
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Steady state analysis of Multiport Interline DC Current Flow Controller integrated meshed MTDC grids Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-22 Vallinayagam A.S., Anbuselvi S.V., Kumudini Devi R.P., Oriol Gomis Bellmunt
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A Short-term net load hybrid forecasting method based on VW-KA and QR-CNN-GRU Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-22 Ronghui Liu, Jufeng Shi, Gaiping Sun, Shunfu Lin, Fen Li
The penetration of distributed photovoltaics on the user side increases the fluctuation of the net load and makes it harder to forecast. To improve forecasting precision, a short-term net load hybrid forecasting model is proposed, which considers weather classification and neural network. First, a weather conditional factor is constructed to describe weather conditions. A k-means algorithm based on
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Influences of faulty AC underground power cables on the neighbouring metallic gas pipelines Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-20 Osama E. Gouda, Gomaa F.A. Osman
In this paper the impacts of faulty underground power cables on their neighboring metallic buried pipelines have been investigated, specifically in the event of line to ground faults of these cables, as well as the use of barrier mediums to reduce this effect. In this paper, the conduction current generated in metal pipeline as a result of faults in underground cables is studied.
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Machine learning applications in cascading failure analysis in power systems: A review Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-20 Naeem Md Sami, Mia Naeini
Cascading failures pose a significant threat to power grids and have garnered considerable research interest in the power system domain. The inherent uncertainty and severe impact associated with cascading failures have raised concerns, prompting the development of various techniques to study these complex phenomena. In recent years, advancements in monitoring technologies and the availability of large
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Dual-input configuration of three-phase split-source inverter for photovoltaic systems with independent maximum power point tracking Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-20 Mustafa Abu-Zaher, Fang Zhuo, Mohamed Orabi, Alaaeldien Hassan, Mahmoud A. Gaafar
This paper presents a dual-input configuration for the three-phase split-source inverter (SSI) to be used with photovoltaic (PV) systems, it is denoted as DSSI. Compared to using one SSI for each PV input, the proposed configuration uses a lower number of semiconductors. Thus, lower cost along with higher power density can be acquired. The proposed DSSI inherits the brilliant features of the conventional
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Novel IEC 61850-based off-site engineering and validation methodology for protection, automation, and control systems Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-19 André Felipe Silva Melo, Juan Manuel Roldan-Fernandez, Francisco Gonzalez-Longatt, Manuel Burgos-Payan, Ulisses Chemin Netto
The IEC 61850 standard has driven the development of power systems Protection, Automation, and Control Systems (PACS) over the past years. Although it is well-known for its communication protocols, several concepts and features are underused. This paper presents a new engineering and validation methodology applying the IEC61850 standards concepts to optimize the project life cycle by standardizing
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An unsupervised adversarial autoencoder for cyber attack detection in power distribution grids Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-19 Mehdi Jabbari Zideh, Mohammad Reza Khalghani, Sarika Khushalani Solanki
Detection of cyber attacks in smart power distribution grids with unbalanced configurations poses challenges due to the inherent nonlinear nature of these uncertain and stochastic systems. It originates from the intermittent characteristics of the distributed energy resources (DERs) generation and load variations. Moreover, the unknown behavior of cyber attacks, especially false data injection attacks
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An intelligent complex power quality disturbance recognition method based on two dimension encoding conversion and machine vison Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-18 Zhangling Duan, Zhi Peng, Juncai Song, Siliang Lu
This study proposes an intelligent methodology for accurate identification of complex power quality disturbance (PQD) based on 2D encoding conversion and machine vision. Firstly, a 2D image encoding method as improved Markov transition field (IMTF) is proposed to convert 1D PQD signals to 2D images, which can realize the enhancement of disturbance feature display. It can solve the information loss
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A two-stage stochastic programming approach for electric energy procurement of EV charging station integrated with BESS and PV Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-18 Abed Kazemtarghi, Ayan Mallik
Energy procurement of an electric vehicle charging station (EVCS) needs medium-term decisions, which depend on the short-term energy transactions of the EVCS in real-time market. However, the energy exchange in real-time operation is affected by uncertainties related to the pool prices, electric vehicle (EV) load demand, and photovoltaic (PV) generation level. To comprehensively include the real-time
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Stability analysis and application of a synchronverter-based control approach to DFIG-based wind energy conversion systems Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-18 José Dickson Araújo-de-Oliveira, Francisco Kleber de-Araújo-Lima, Fabrício Gonzalez Nogueira, Fernando Lessa Tofoli, Carlos Gustavo Castelo Branco
This work proposes an enhanced control approach relying on the synchronverter concept for wind energy conversion systems (WECSs) based on the doubly-fed induction generator (DFIG). It consists of incorporating a virtual filter resistor into the control loop of the synchronverter, which is associated with the grid-side converter (GSC) aiming at emulating the behavior of a synchronous generator when
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Design of distributed trading mechanism for prosumers considering the psychological gap effect in community electricity markets Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-17 Yue Guan, Qiang Hou
With the large-scale customer-side development of distributed energy and continuous advancements in power market reform, the market-oriented trading of distributed power generation with the participation of prosumers has gradually become an important solution to promote the consumption of distributed energy. In addition, prosumers exhibit obvious bounded rationality characteristics; therefore, the
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Distributed control on a multi-agent environment co-simulation for DC bus voltage control Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-17 Daniel Leocádio Fernandes, André Luiz Marques Leopoldino, Juan de Santiago, Christos Verginis, André Augusto Ferreira, Janaína Gonçalves de Oliveira
Distributed control on a multi-agent format in co-simulation environment has been conceived in a client/server architecture for controlling a series of devices connected to a Direct Current (DC) bus. The implemented system aims for providing the communication infrastructure required for connecting the whole co-simulation environment. Power converters interact via a communication infrastructure orchestrated
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A decentralized coordinated control scheme for the DC network with a multiport converter Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-17 Chudi Weng, Yonggang Peng, Yue Li
For complex networks with multiple subgrids formed by solid-state transformers, existing studies primarily focus on coordination within the networks in islanded mode, overlooking cooperation in grid-connected mode. To address this gap, this paper proposes a coordinated control scheme for the triple active bridge (TAB) converter in the grid-connected DC network. By establishing a droop relationship
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Lightning current Risetime influence on inductive coupling effect of secondary shield cable in substation Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-17 Weihan Zhao, Jianguo Wang, Mi Zhou, Li Cai, Jingkang Huang, Jinxin Cao
Secondary cables are susceptible to lightning surge currents when substation is struck by lightning. Little work has been made to the effects of surge currents in substation secondary cables, particularly the effects of surge current rise time. Six types of simulated lightning surge currents with different rise times, ranging from 5.7 s to 25.4 s, were injected into the substation grounding grid, and
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WLAV state estimation based topology error detection and identification in distribution networks with limited number of measurements Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-16 Kemal Parlaktuna, Erk Dursun, Murat Göl
Rapidly populating renewable energy sources and storage units at the distribution system, made it crucial to monitor the system in real-time. This necessity brings new challenges and business opportunities for the distribution system operator (DSO). DSO requires situational awareness on the system via several analyses, most of which rely on correct system topology. However, switch statuses of the distribution
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A superimposed quantity-based protection method for power systems with inverter-based resources Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-16 Jianzhong Gui, Hangtian Lei, Brian K. Johnson
The increasing penetration of inverter-based resources (IBRs) to the power grid brings challenges to protection systems. IBRs may not provide sufficient fault current to trip protective relays, leading to delays in fault isolation and increased risk of equipment damage. To overcome the challenges, superimposed quantity-based elements are developed in this paper for transmission line protection in a
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Optimal power flow considering intermittent solar and wind generation using multi-operator differential evolution algorithm Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-16 Karam M. Sallam, Md Alamgir Hossain, Seham Elsayed, Ripon K. Chakrabortty, Michael J. Ryan, Mohammad A. Abido
In this paper, a multi-operator differential evolution algorithm (MODE) is proposed to solve the Optimal Power Flow problem, called MODE-OPF. The MODE-OPF utilizes the strengths of more than one differential evolution operator in a single algorithmic framework. Additionally, an adaptive method is proposed to update the number of solutions evolved by each DE operator based on both the diversity of the
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A data-driven sensor placement approach for detecting voltage violations in distribution systems Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-16 Paprapee Buason, Sidhant Misra, Samuel Talkington, Daniel K. Molzahn
Stochastic fluctuations in power injections from distributed energy resources (DERs) combined with load variability can cause constraint violations (e.g., exceeded voltage limits) in electric distribution systems. To monitor grid operations, sensors are placed to measure important quantities such as the voltage magnitudes. In this paper, we consider a sensor placement problem which seeks to identify
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A high gain Z-source boost DC–DC converter with common ground for solar PV applications Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-13 Meghraj Morey, Manikanta Golla, Man Mohan Garg, Nitin Gupta, Ajay Kumar
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Accurate current sharing with SOC balancing in DC microgrid Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-13 Kai Wang, Jiyong Zhang, Xianqun Qiu, Jiakang Wang, Chuanyuan Wang
In the presented study, a novel droop control method has been developed for distributed energy storage systems, which ensures the precision of current sharing and the balance of state of charge (SOC). A strategy that has been newly introduced facilitates a logical allocation of SOC and ensures precise sharing of current in autonomous island DC microgrids. Within the framework of droop control, a linkage
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An iterative auction-based method for multi energy trading in a microgrid considering renewable energy uncertainties Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-13 Mahan Ebrahimi, Mahoor Ebrahimi, Ali Fallah, Miadreza Shafie-Khah, Hannu Laaksonen
Due to the significant strides made in renewable energy generating units, they are now an appealing choice for supplying energy with various benefits. Furthermore, the aggregation of different energy generators and resources and the rise of energy conversion facilities, like combined heat and power (CHP), have paved the way for a new category of multi-energy prosumers. This research presents an innovative
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Improving the frequency response of a multi-generation power system using adaptive variable structure fuzzy controller Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-13 M.A. Abdel Ghany, Magdi A. Mosa, A.M. Abdel Ghany, Mariem Y. Yousef
Recently, the modern electric power system has a significant amount of renewable energy resources that produce fluctuating power and have low inertia. This power fluctuation causes a continuous mismatch between generation and load, which leads to a swing in the system's frequency. Simultaneously, the low inertia operation magnifies the frequency excursion. These challenges of low inertia, generation
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Interactive demand response and dynamic thermal line rating for minimizing the wind power spillage and carbon emissions Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-12 Samaa Fawzy, Elhossaini E. Abd-Raboh, Abdelfattah A. Eladl
Spilling has already occurred as a result of rising the penetration of intermittent renewable generation, and it is anticipated that the level of renewable energy curtailment will continue to soar. This leads to an increase in operating costs, CO emissions, and not good utilization of renewable energy resources. A bi-level multi-objective optimization model is proposed in this paper to reduce wind
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Hybrid cooperative Markov-based method for decentralized voltage control and loss reduction via photovoltaic reactive power support Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-12 Henrique Pires Corrêa, Flávio Henrique Teles Vieira
The problem of carrying out effective voltage control in distribution grids with significant photovoltaic penetration has received considerable attention in the recent literature. Hence, a variety of methods that leverage PV inverter reactive support capabilities have been proposed for enhancing the grid voltage profile. Despite its great relevance for the utility, active power loss is, quite notably
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Investigation on the evolution of discharge behaviors at XLPE-SiR interface of 10 kV cable joints under moisture conditions Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-12 Daiqiang Lu, Ran Hu, Yifeng Zhao, Yanqi Zeng, Gang Liu
The discharge behaviors at the XLPE-SiR interface of 10 kV cable joints under moisture conditions seriously affect the reliability of the distribution network. However, there have been few studies on the development and characteristics of interfacial discharge behaviors. In this paper, an investigation was conducted to replicate the discharge behaviors at the XLPE-SiR interface of 10 kV cable joints
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A novel sequence component based fault detection index for microgrid protection Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-12 Smrutirekha Samal, Subhransu Ranjan Samantaray
The paper introduces a novel protective relaying method using symmetrical components of current to detect asymmetrical faults in microgrid. This approach is focused on utilizing the complex magnitude-phase plane (MPP) of the fault detection index (FDI), which is computed using the positive and negative sequence components of the current signal retrieved at one end of the faulty line. The MPP obtained
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Strengthening distribution systems after earthquakes with a new analytical model Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-12 Ozan Akdag
This study highlights that earthquakes can lead to short-circuit faults, power outages, and equipment damage in distribution systems. Based on the observation of the effects of two major earthquakes that occurred in Turkey (February 6, 2023), a new analytical model for strengthening distribution systems against natural disasters is proposed in this study. In this model, the distribution system is analyzed
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A robust synchronous stability control for virtual synchronous generator of renewable energy adapted to large power grid voltage drop Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-11 Zhidong Sun, Shuai Zhang, Chenghui Zhang, Xiang Tao, Tongyin Dai
Synchronization instability is a power oscillation phenomenon which occurs after the renewable energy sources (RES) generation unit encounters large disturbance. Synchronization instability is destructive to the stability of the RES generation unit and even the power grid system. Addressing this issue is of paramount importance. This article conducts a comprehensive research. It firstly reviews the
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Traveling wave method for event localization and characterization of power transmission lines Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-11 Marko Hudomalj, Andrej Trost, Andrej Čampa
Traveling wave theory is deployed today to improve the monitoring of transmission lines in electrical power grids. Most traveling wave methods require prior knowledge of the wave propagation characteristic of the transmission line, which is a major source of error as the value changes during the operation of the line. To improve the localization of events on transmission lines, we propose a new online
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An integrated adequacy and stability assessment approach for microgrid reliability analysis under inverter-based resource contingency Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-11 Hadis Hosseinpour, Mohammed Ben-Idris
Power system reliability evaluation has been conducted based on steady-state analysis approaches such as optimal power flow calculations with minimum load curtailments. These approaches assume that a power system would return to a stable operating state after a contingency (faults, short circuits, etc.), i.e., power system dynamics are not considered. Although this assumption has been widely accepted
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Load shifting versus manual frequency reserve: Which one is more appealing to thermostatically controlled loads in Denmark? Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-11 Peter A.V. Gade, Trygve Skjøtskift, Charalampos Ziras, Henrik W. Bindner, Jalal Kazempour
This paper investigates demand-side flexibility provision in two distinct forms of manual Frequency Restoration Reserve (mFRR) services and load shifting, and explores which one is financially more appealing to Thermostatically Controlled Loads (TCLs) in Denmark. While mFRR is an ancillary service required for the system and being bought by the system operator, load shifting is an individual act of
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Two-stage robust optimal scheduling with price-based demand response Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-11 Jiaxing Li, Ping Dong, Mingbo Liu, Siwei Ke, Chunling Wang, Mingyu Ma, Shanchao Huang
With the rapid development of the electricity spot market, the price of electricity is changing all the time based on supply and demand, and the user will also adjust the way of electricity consumption under the influence of electricity price, which are collectively referred to as price-based demand response (PBDR) load. However, the price elasticity of the real-time market is not exactly known in
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Data-driven short term load forecasting with deep neural networks: Unlocking insights for sustainable energy management Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-10 Waqar Waheed, Qingshan Xu
In today’s smart grid and building infrastructure, it is strongly suggested to implement short-term demand forecasting for future power generation. There is a growing demand for improved accuracy in forecasting, from the level of individual users to that of the power system in the context of the emerging energy market and the creation of a smart grid infrastructure. There is also a need for better
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Experimental and theoretical study on the influence of bundle number on corona loss characteristics of ultra high voltage corona cage positive/negative DC conductors at high altitude Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-10 Weiye Xue, Shilong Huang, Jie Mao, Xiaoliang Yan, Chenming Song, Yunpeng Liu
The corona loss generated by the conductor is one of the important factors in the design of ultra-high voltage (UHV) direct current transmission lines. This article is based on the high-altitude (2200 m) ultra-high voltage corona cage experimental platform built in Xining City, Qinghai Province. For the LGJ400-35 conductor used in the typical ± 800 kV DC transmission lines from Qinghai to Henan Province
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A short-term load forecasting method for integrated community energy system based on STGCN Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-10 Jie Cao, Chaoqiang Liu, Chin-Ling Chen, Nan Qu, Yang Xi, Yunchang Dong, Rongqiang Feng
Accurate integrated energy load forecasting is a crucial prerequisite for energy scheduling and strategy formulation in integrated community energy systems. However, the complex interrelationships among multiple loads within the integrated community energy system often hinder the improvement of load forecasting accuracy. To address the issue of high volatility in forecasting caused by the deep coupling
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Dynamic phase balancing of three single-phase sections having phase-wise generation and storage in a residential network Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-09 Syed A. Raza, Jin Jiang
A power management strategy for balancing three single-phase sections in a three phase residential microgrids is presented in this paper. The scheme makes use of the previously developed intra- and inter-phase power management techniques to transfer power from the power surplus phase to power deficient ones to achieve dynamic phase balance. This scheme is particularly useful in situations where phase-dependent
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A MILP model for optimal switch placement to enhance power distribution system performance in normal and hurricane conditions Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-09 Mohammad Taghi Ettehad, Reza Mohammadi Chabanloo, Mohammad Taghi Ameli
Severe hurricanes can inflict significant damages in the order of several times the common network failures on both the distribution companies and consumers. Network reconfiguration and condition-based switching are the common actions for enhancing distribution network performance in both normal and emergency conditions. In this paper, a novel approach is presented for simultaneous improvement in resiliency
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A novel optimal dispatch strategy for hybrid energy ship power system based on the improved NSGA-II algorithm Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-08 Xinyu Wang, Hongyu Zhu, Xiaoyuan Luo, Shaoping Chang, Xinping Guan
As the most promising future generation green ship, hybrid energy ship power systems (HESPS) have gradually attracted attention. However, the integration of new energy including wind energy and solar energy, raises key challenges in designing a suit optimal dispatch for HESPS under different navigation conditions. Based on this, an optimal dispatch strategy using the improved Non-dominated Sorting
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A Novel MOWSO algorithm for Microgrid multi-objective optimal dispatch Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-08 Yu-Ling HE, Xue-Wei WU, Kai SUN, Xiang-Yu LIU, Hai-Peng WANG, Si-Ming ZENG, Yi ZHANG
This article introduces a novel metaheuristic multi-objective optimization algorithm to address the complex multi-objective optimization scheduling challenges of the microgrids for the first time. Comparing with common multi-objective optimization algorithms, the proposed Multi-Objective War Strategy Optimization (MOWSO) has the following highlights: 1) MOWSO only needs to set three parameters. The
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Overview of improved dynamic programming algorithm for optimizing energy distribution of hybrid electric vehicles Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-08 Xueqin Lü, Songjie He, Yuzhe Xu, Xinrui Zhai, Shenchen Qian, Tao Wu, Yinquan WangPei
An effective energy management strategy can effectively distribute output power between different power sources in the hybrid system to improve the dynamic performance of hybrid electric vehicles. As a global optimization algorithm, dynamic programming algorithm has the characteristics of multi-stage decision-making and recursive calculation. It can solve the theoretical optimal solutions of fuel economy
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A pricing strategy based on bi-level stochastic optimization for virtual power plant trading in multi-market: Energy, ancillary services and carbon trading market Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-06 Yue Chen, Yuguang Niu, Chenzhi Qu, Ming Du, Pin Liu
Virtual power plants (VPPs) has been considered as an effective approach to manage internal prosumers participating in market transactions with a jointly clearing of energy markets (EM), reserve ancillary services markets (ASM), and carbon trading markets (CTM). Thus, how to address the problem of energy management for VPP in coupling multiple market trading mechanisms has determined as a technical
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Investigating the potential of Machine Learning for fault location on Inverter-Based Resource interconnection lines: Insights and recommendations Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-06 Moisés J.B.B. Davi, Rodrigo de B. Iscuissati, Mário Oleskovicz, Felipe V. Lopes
Given the increasing penetration of Inverter-Based Resources (IBR) and the impacts of these generators on existing fault location functions, this paper explores the potential of Machine Learning (ML) for designing one-terminal fault locators applied to systems with IBRs. For the studies, a system with a widely used topology for IBR interconnection to a transmission grid is modeled in PSCAD software
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Fault classification and localization in microgrids: Leveraging discrete wavelet transform and multi-machine learning techniques considering single point measurements Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-06 Bassem Gehad Basher, Abdelhady Ghanem, Sayed Abulanwar, Mohammed K. Hassan, Mohammad E.M. Rizk
Currently, microgrids are becoming more prevalent. Therefore, it is crucial to develop robust and reliable microgrid protection schemes. Researchers have recently explored various approaches to microgrid protection, including adaptive protection and AC microgrid protection. The study offers insights into fault detection and localization in microgrid protection, utilizing precise measurements from the
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Power flow modelling and loss analysis of urban rail traction power supply system considering cross-bonding cables Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-05 Hong Yu, Gang Zhang, Yunda Wang, Wei Xiong, Renyu Wang
The urban rail transit traction power supply system adopts DC power supply. The upstream and downstream rails are generally connected by cross-bonding cables at intervals, so as to decrease the rail equivalent resistance and reduce the rail potential and loss. The existing modelling methods for power flow calculation do not consider the influence of cross-bonding cables due to the complexity of modelling
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Capacity optimization allocation method for off-grid RES-H2 microgrid system considering the load-follow-source mechanism Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-04 Jie Zhang, Fei Xiao, Fan Ma, Lin Sun, Yan Zhang, Runlong Xiao
Based on the uncertainty of the output of renewable energy such as wind and photovoltaic (PV), a capacity optimization allocation method considering the load-follow-source mechanism is proposed to solve the shortages of traditional methods, which is low in utilization rate of energy and low in economy. Firstly, considering the fluctuations of renewable energy sources (RES) and the operating characteristics
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A novel voltage arc suppression method for single-phase grounding fault in distribution network based on power router Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-04 Lang Jiang, Xianggen Yin, Jinmu Lai, Wei Chen, Minghao Wen, Zhenlan Dou, Jiakun Fang, Zilan Xiong
The power-electronized distribution network is the trend with the emergence of widespread adoptions of converters, sparking innovative opportunities for investigating arc suppression. As a future alternative low-frequency transformer, the Power Router (PR) also needs grounding, which can realize arc suppression with well design. Therefore, this paper introduces a novel arc suppression technique for
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A novel estimation methodology for multi-resonance equivalent inductance of transformer winding for inter-turn short-circuit fault detection Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-04 Tirlingi Madhava Rao, Sourav Mitra, Saurav Pramanik
A novel, indirect measurement technique for estimating equivalent inductance associated with multi-resonance behavior of an isolated transformer winding is reported for both healthy and inter-turn short-circuit fault-condition. For healthy winding, the authors proposed measuring two unique admittance magnitude responses of the winding followed by utilizing their natural frequencies for estimating the
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Modified backstepping control for cyber security enhancement of a wind farm based DFIG against false data injection, hijack and denial of service cyber attacks Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-04 Hossein Mahvash, Seyed Abbas Taher, Josep M. Guerrero
The importance of cyber security against cyber attacks in AC microgrids (ACMGs) is undeniable. In this regard, the new detection, tracking and mitigation approaches for an ACMG composed of WT topology connected to the doubly fed induction generators (DFIGs) are proposed in this paper. The detection method is based on defining the instantaneous energy functions in the rotor side converter (RSC) of the
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Distributed robust data-enabled predictive control based voltage control for networked microgrid system Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-03 Wenjie Yu, Zhiyuan Tang, Wenjie Xiong
The networked microgrid system (NMG) has become an effective alternative for integrating various types of distributed energy resources (DERs). However, because of the increasing share of DERs and high R/X ratio in the system, the uncertainty and variability of DERs' power generation may cause significant voltage violations in the system. To address these issues, this paper introduces a novel distributed
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Environmental and economic scheduling for wind-pumped storage-thermal integrated energy system based on priority ranking Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-03 Ying Zhu, Shenyun Yao, Yanan Zhang, Minjian Cao
With the rapid access of wind power clusters (WPC), it is difficult for the traditional active scheduling mode to take into account the security, economy and environmental protection of the power system. Pumped storage power station (PSPS), with its flexible regulation characteristics, can reduce the volatility of wind power and enhance the capacity of wind power accommodation to a certain extent.
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A quadratic formulation for the optimal allocation of fault indicators Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-03 Fábio Luiz Usberti, José Federico Vizcaino González, Celso Cavellucci
Faults are an inherent part of power distribution systems, and fault indicators play a crucial role in self-healing smart distribution systems by assisting in fault detection and location. However, the effectiveness of fault indicators depends on their number and location in the distribution system. This paper addresses the optimal decisions on the allocation of fault indicators in distribution networks
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Scaled experiment and observation of the lightning discharge process of rotating wind turbines under different shapes of high-voltage electrodes in the laboratory Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-03 Qiang Wu, Qianhui Yang, Chaoyin Fang, Yu Wang, Xiaoyue Chen, Xishan Wen, Lei Lan, Yeqiang Deng, Jun Xu, Shaokang Chen
In this study, a discharge test for scaled wind turbine is performed to examine the lightning discharge characteristics of rotating wind turbines, and an observation platform is designed. Moreover, the wind turbines are subjected to discharge simulation with rod and arc electrodes, and high-speed and single-lens reflex cameras are used to observe the physical discharge process. Under the rod electrode
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A new differential protection scheme based on Synchro-squeezing transform applied to AC Micro-Grid Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-02 Z. Moravej, A. Ebrahimi, M. Barati
In recent years, the protection of a microgrid has been a substantial challenge. This paper performs a differential protection scheme for the micro-grid based on Synchro-Squeezing Transform (SST). The proposed scheme protects the micro-grid in different modes i.e. islanded or grid-connected mode. Also, it is investigated in the ring and radial configuration. In the proposed scheme, currents on two
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Reliability assessment applied in the design of an industrial substation in the context of Industry 4.0 Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-01 Eduardo Almeida Cabral, Fernando Lessa Tofoli, Raimundo Furtado Sampaio, Ruth Pastôra Saraiva Leão
Incorporating Industry 4.0 concepts into substation automation systems (SASs) enables the achievement of coordinated, fast, and selective protection systems. In this context, this work presents a reliability assessment applied in an industrial substation of a textile company within the framework of Industry 4.0. The Markov chain models both equipment and protection systems, while fault tree analysis
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Islanding and fault detection of inverter based distributed generations using wavelet packet transform and ensemble Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-01 Ajith M.A., Shereef R.M.
The adoption of Distributed Generation (DG) technology has seen a substantial level of advancement in recent years. This has created potential protection issues in microgrids during faults and islanding. This paper proposes a fault and islanding detection method using wavelet packet transform (WPT) and Ensemble. A new index called Normalized RMS Node power index (NRNPI) is defined based on WPT to differentiate
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Effects of inertia distribution on regional frequency heterogeneity Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-04-01 Zaichun Zhang, Robin Preece
Heterogeneous inertia distribution can result in large regional frequency deviations and inter-area oscillations that exceed protection limits configured based on system-wide averaged performance. This paper examines how the spatial distribution of inertia affects frequency heterogeneity. Along with varying inertia distribution, variations in generator turbine-governor control and network topology
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Traditional and alternative grounding system's impedance and resistance measurements of a 138 kV transmission line tower Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-03-30 Adroaldo Raizer, Emanoel P. Elias, Mauricio V. Ferreira da Luz, Vilson L. Coelho, Victor M.A. Raupp, Marcos Telló, José M. Giannini Júnior
One of the main causes of outages in transmission lines is lightning. To mitigate this occurrence, grounding electrodes are used at the base of the towers that make up the transmission lines. Since lightning is a phenomenon with components of low and relatively high-frequency energy (approximately up to 2 MHz), there is a certain complexity in accurately characterizing grounding systems. The primary
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Power frequency shunting property of whole group 500kV UHV Series compensated MOVs containing 10 Served and 1 New MOVs Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-03-30 Runyu Fu, Jianguo Wang, Xu Wang, Yu Wei, Mi Zhou, Cai Li, Yadong Fan, Jianping Wang
are widely used as protective devices of series compensation capacitor banks for Extra-High Voltage and large capacity long-distance transmission lines. As MOVs work in the strong nonlinear part of the V-I curve, the aging and deterioration degree of different MOVs in parallel connection are different, leading to one or two MOVs in the entire heavy-duty group being the first to be damaged. The uniformity
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A field study on the energy dissipation associated with step and touch voltage in earthing systems encased in earth enhancing compounds Electr. Power Syst. Res. (IF 3.9) Pub Date : 2024-03-30 Lasantha Chandimal, Manoj Rajakaruna, Sankha Nanayakkara, Sidath Abegunawardana, Mahendra Fernando, Vernon Cooray
An extensive field experiment was conducted to investigate the effects of earth-enhancing compounds on earthing systems. Four identical vertical earth rods were installed, each encased in concrete, Bentonite, and two commercial enhancing materials. Lightning impulse signals were injected into all electrode arrangements, and the measured responses were used to analyse the associated risks of step and