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AUT Journal of Electrical Engineering
Scopus
ISSN 2588-2910 · Amirkabir University of Technology · 231 artikel di indeks
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Efficient and Lightweight IoT Security Using CNTFET-Based Ultra-Low Power SRAM-PUF
The escalating development of artificial intelligence and machine learning in Industry 4.0 and cyber-physical systems has heightened security challenges for humans. In addressing this, Physical Unclonable Functions (PUFs) have emerged as a promising, lightweight solution to enhance the security of…
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Beyond Signal Processing: A Model-Based Luenberger Observer Approach for Accurate Bearing Fault Diagnosis
Traditionally, diagnosis of bearing faults involves analyzing the frequency spectra of monitored signals, like vibration and stator current, using various signal processing techniques. However, signal-based methods for fault diagnosis often produce false alarms due to changes in load and voltage…
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A novel modeling method for forward-flyback converter and investigating proper design with guidelines to eliminate right half plane zeros
The main advantages of the flyback converter are the simple topology and the isolation of the output from the primary, which is useful for cases where a compact design is required. The converter exhibits inherently nonlinear dynamic behavior, it is also a non-minimum phase system with a zero in the…
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Enhancing Bearing Fault Diagnosis in Induction Motors: A Novel Approach Leveraging Synchronized Deviation of Instantaneous Frequency of Voltage and Current
Current-based methods for bearing fault diagnosis primarily rely on analyzing the current signal, leading to challenges in detecting fault frequencies due to their low magnitude amid the noise in the current spectrum. This issue intensifies for weak bearing faults in their early stages. The…
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A Comprehensive Method for Expansion Planning of Active Distribution System Considering Reliability Assessment
Today the application of Distributed Energy Resources (DERs) in Distribution System expansion planning (DNEP) problems is more crucial than before. Despite of advantages, the presence of the resources considering Renewable Energy Sources (RESs) and Dispatchable Generation (DG) units in the…
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Trajectory Tracking and Formation Control of Mobile Robots Using Fuzzy Logic Controller with Obstacle Avoidance
In various industries, the coordinated movements of mobile robots in triangular formations hold promise for enhancing efficiency and safety. This study investigates trajectory tracking and formation control using two distinct methodologies: the PID controller and the Fuzzy Logic Controller (FLC)…
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A Cost-Oriented Scheme for Reconstruction and Efficient Insulation of Medium- and High-Voltage Stator Coils
In today’s industrial world, it is indispensable to offer a correlated equilibrium between the reconstruction costs of damaged electric motors and desirable of performance characteristics so as to exploit available primary materials. This paper presents a cost-oriented scheme to choose an effective…
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Intelligent Price Optimization in Smart Distribution Networks: A Risk-Sensitive Cheetah Hunter Optimization Algorithm for Distribution Locational Marginal Price Assessment
Distribution locational marginal pricing (DLMP) is an efficient approach to optimize the pricing of distribution systems. This paper focuses on DLMP to minimize losses within the distribution network. This approach can be strategically manipulated to adjust the profits for distributed generation…
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A New High Step-down Converter with Low Ripple Current and High Efficiency
This paper introduces a new high step-down converter that achieves zero voltage switching in both primary and auxiliary switches without relying on coupled inductors, thus ensuring low ripple in input and output currents. The auxiliary circuit is optimized with the fewest possible components…
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A Comprehensive Approach to Synthetic Distribution Grid Generation: Erdős–Rényi to Barabási-Albert
In this extended study, the focus is on advancing the generation of synthetic distribution grids (SDGs) through the introduction of a new algorithm based on the Barabási-Albert random graph model. The initial use of the Erdős model to create SDGs revealed limitations in size and structural…
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Optimal Hybrid Renewable Energy System Design: A Techno-Economic Analysis Across Diverse Sites
Enhancing the efficiency and environmental compatibility of hybrid systems through renewable energy sources is a highly motivating concept. Two tourist destinations, one Sarab Gian region in Nahavand city of Iran and the other in Zurich city in Switzerland, were analyzed. Using HOMER Pro software…
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Cache Assignment for a Flexible Mobile User in Wireless Heterogeneous Networks
With the proliferation of smart mobile devices, there is an ever-increasing demand for multimedia content. To avoid congestion in backhaul links, mobile edge caching is a promising solution that can reduce delivery delays and improve users' quality of experience. In this regard, the requested…
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Designing a robust method to improve virtual inertia control performance in islanded microgrid
Power-electronic converters play a crucial role in the functioning of microgrids. However, these converters, characterized by their low inertia, present a significant challenge to maintaining a consistent frequency in islanded microgrids. To address this issue, an innovative concept known as…
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Aggregator Design for Optimal Management of Charging and Discharging of Electric Vehicles in the Smart Grid Context
The reduction of fossil fuel reserves, advancements in science and technology, increased network loading, the emergence of new energy sources and loads, etc., have contributed to the rise of smart grids. Within smart grids, distributed generation resources play a pivotal role in meeting the…
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Designing a sub-wavelength array to change the direction of the radiation wave to a desired angle using variable Huygens surfaces
Since Huygens structures with phase shift lead to beam rotation, this manuscript discusses a phase shifter structure for the Huygens surface based on Tapered Slot Transition in the frequency range of 9.95-10.2 GHz using varactor diodes. By inducing an electric field along the tracks and placing…
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High-Resolution Rotor Fault Diagnosis of Wound Rotor Induction Machine Based on Stator Current Signature Analyses
Wound rotor induction machine (WRIM) has been extensively used in different applications such as medium-power wind turbines and traction systems. Since these machines work under harsh and difficult conditions, condition monitoring of such systems is crucial. Different electrical and mechanical…
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Reliability Modeling of Various Type of Wind Turbines
Various wind turbines have been manufactured for converting wind power into electric energy. They are fixed speed concepts with squirrel cage induction generators, limited variable speed concepts with wound rotor induction generators, variable speed concepts with double fed induction generators…
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A blade-pitch controller for a large wind turbine generator in the presence of time-varying delay and polytopic uncertainty
A pitch-regulated wind turbine has an exclusive pitch activator for every single blade, and it is possible to send various pitch angle demands to each blade. They possess a controller to perform this task, and the problem of delay-dependent robust stability with polytopic-type uncertainties of…
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A Low-Profile Metasurface MIMO Antenna with Suppressed Higher-Order Modes for 5G Applications
In this paper, a novel low-profile and low cross-polarization metasurface antenna is proposed for 5G mm-wave applications. The proposed antenna consists of two layers, with a slot antenna as the base and a novel metasurface layer on top. The metasurface layer is a 3×3 array of patches. By…
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Online Non-Intrusive Efficiency Monitoring of Pumping Systems
Moving toward a sustainable energy future requires improving the efficiency of energy systems. The fact that about 22% of industrial electricity is consumed by induction-motor-driven centrifugal pumps, highlights the importance of continuous monitoring of such systems to ensure they are operating…