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Electrical engineering & Electromechanics
Scopus
ISSN 2074-272X · National Technical University "Kharkiv Polytechnic Institute" · 947 artikel di indeks
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Artikel Jurnal
Highly accurate approximation for sheath currents in high-voltage three-phase cable line
Introduction. This study focuses on sheath currents in high-voltage single-core XLPE-insulated power cables with solid bonding. The analysis covers flat and trefoil three-phase cable lines. Sheath current calculation is essential for evaluating thermal conditions, losses, and overall cable…
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Artikel Jurnal
Influence of zinc oxide nanoparticles on flashover voltage of unsaturated polyester resin-based composites for electrical insulators
Introduction. Polyester-based composites are increasingly used in electrical applications for their insulation, mechanical, and thermal properties. Nanofillers have shown promise in enhancing the properties of polymer-based composites. Goal. This study aims to improve the flashover voltage of…
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Artikel Jurnal
Bidirectional DC/AC converter for flexible distributed energy integration into AC microgrids
Introduction. This work focuses on the development of microgrids in remote areas, islands and regions frequently affected by natural disasters, particularly in Vietnam and other island countries in Asia. Problem. The converters perform direct and isolated energy conversion to AC or DC microgrids…
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Artikel Jurnal
Normal and degraded operation of the open-end winding induction machine fed by 2-level inverters in cascading
Introduction. The machine-converter system is a prevalent and essential configuration, widely used not only in variable-speed industrial drive applications, but also in high-tech transportation and power fields. Problem. Conventional drive systems, particularly those supplied by standard 2-level…
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Artikel Jurnal
Comparative analysis of numerical, evolutionary and metaheuristic methods for experimental implementation of selective harmonic elimination in a five-level emerging inverter
Introduction. Multilevel inverters (MLIs) are widely used in renewable energy conversion and high-performance power applications due to their ability to generate output voltages with low harmonic distortion and reduced switching stress. Selective harmonic elimination (SHE) remains one of the most…
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Artikel Jurnal
Intelligent unified power quality conditioner based photovoltaic to improve grid reliability and mitigate power quality issues
Problem. Electrical distribution networks are plagued by power quality problems, which have a negative impact on sensitive electrical loads. These problems include reactive current, low power factor on the load side, and voltage harmonics, voltage sags and voltage swells on the grid voltage side…
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Artikel Jurnal
The methodology of multi objective design of active-passive shielding system for overhead power lines magnetic field in residential buildings space based on metaheuristic optimization method
Problem. Most studies of power frequency magnetic field reduced to safe level in in residential buildings located near overhead power lines carried out based on passive or active electromagnetic shielding, but there is no methodology for designing active-passive systems that include active and…
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Artikel Jurnal
Optimizing residential energy usage patterns in smart grids using hybrid metaheuristic techniques
Introduction. This study applies hybrid metaheuristic optimization techniques to intelligently schedule household loads, ensuring a balance between cost reduction, comfort and grid stability in smart homes. Problem. The growing gap between energy demand and supply leads to high electricity costs…
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Artikel Jurnal
Comparative performance analysis of backstepping and sliding mode control for static synchronous compensators based on flying capacitor multicell converters
Introduction. The integration of a static synchronous compensator (STATCOM) based on a flying capacitor multicell converter (FCMC) provides an effective solution for dynamic reactive power compensation and voltage quality improvement. The adoption of nonlinear control strategies, such as sliding…
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Artikel Jurnal
Efficient and reliable scheduling of power generating units in the unit commitment problem using the Tardigrade optimization algorithm
Introduction. The unit commitment (UC) problem is a critical operational task in power systems, involving the optimal scheduling of generating units while meeting demand, satisfying technical constraints, and minimizing operating costs. Due to its combinatorial nature, nonlinear characteristics…
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Artikel Jurnal
Mitigation of cogging torque in surface permanent magnet brushless DC motor using slot opening shift
Introduction. Cogging torque deteriorates the torque quality of surface permanent magnet brushless DC (PMBLDC) motors. Problem. Reducing cogging torque is indispensable for performance upgradation of PMBLDC motors; hence, it is an important issue for motor designers. Goal. This paper presents a…
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Artikel Jurnal
The use of shape memory alloys in fuses for the protection of electrical installations
Problem. The degree of damage to electrical installations during short circuits depends on the response time of the protection. An effective way to enhance the current-limiting effect in electrical fuses (reducing their response time) may be the use of shape memory alloy (SMA) elements. However…
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Artikel Jurnal
Increasing the efficiency of inductive energy storage with a plasma opening switch for a small-sized direct-action electron accelerator DIN-2K
Introduction. Inductive energy storage with a plasma opening switch is an important electrical device that provides fast interruption of high currents with subsequent induction of high voltage. These devices are widely used in accelerator technology to produce high-current electron beams. Problem…
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Artikel Jurnal
Positive corona discharge in air at constant voltage in the electrode system: thin rod, the length of which is limited by a metal disk – plane
Introduction. Corona discharge, compared to discharges with a large concentration of electron avalanches and streamers, develops in the interelectrode gap with much larger dimensions, where streamers spread over a greater distance and, accordingly, each of them exists for a longer time. Problem…
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Artikel Jurnal
Impact of H-bridge inverters structure on the performances of open-end winding induction machine drives
Introduction. The integration of machine-converter systems represents a foundational architecture in modern engineering, serving as a critical component in variable-speed industrial drives as well as in sophisticated transportation and energy infrastructure. Problem. Standard 2-level inverter-fed…
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Artikel Jurnal
Hybrid predictive-adaptive energy management for photovoltaic-battery integrated electric vehicle charging using bidirectional long short-term memory and particle swarm optimization
Introduction. The integration of photovoltaic (PV) systems with electric vehicle (EV) charging infrastructure requires intelligent energy management strategies capable of handling nonlinear dynamics, fluctuating irradiance conditions, and variable load demands. Advanced predictive control…
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Artikel Jurnal
The methodology of multi objective design of nonlinear electromechanical spatial stabilization systems using metaheuristic optimization algorithm based on robust-quality criteria
Problem. Most research on the design of nonlinear electromechanical systems for spatial stabilization of moving object equipment is carried out using typical proportional-differential controllers, with which it is possible to satisfy the stringent ever-increasing requirements for specific cases…
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Artikel Jurnal
Joint state and electromechanical actuator fault estimation in unmanned aerial vehicles using a hybrid bidirectional long short-term memory extended Kalman filter framework
Introduction. Accurate state and electromechanical actuator fault estimation is essential for ensuring reliable navigation and fault-tolerant operation of unmanned aerial vehicles (UAVs) operating under noisy and uncertain environments. Problem. Conventional extended Kalman filter (EKF)-based…
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Artikel Jurnal
Bearing fault classification in induction motors using current spectrum analysis and artificial neural network
Introduction. Bearing faults in induction motors are one of the primary causes of performance degradation and unexpected failures in industrial systems. Early fault detection remains challenging because conventional protection systems generally respond only after severe damage occurs. In addition…
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Artikel Jurnal
Ways to improve the efficiency of the electromechanical Coilgun launcher for UAV launching
Introduction. Electromechanical Coilgun launcher provide safe, stable, and reliable launches of massive, low-impact objects, featuring process control and rapid restarts, making them particularly suitable for unmanned aerial vehicles (UAVs). Problem. The Coilgun launcher uses capacitive energy…