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301
Fractional Order Approach for Conical Active Magnetic Bearings Under Time Delay and Supply Faults
Published 2025-01-01“…Meanwhile, the inner loop utilizes a fractional-order PID (FOPID) controller to control coil currents, effectively mitigating the influence of eddy currents and the time delay issues associated with power supplies and sensors. …”
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302
Low Power Emission Pulse Generation Circuit Based on n-Type Amorphous In-Ga-Zn-Oxide Transistors for Active-Matrix Organic Light-Emitting Diode Displays
Published 2024-10-01“…The low power consumption is achieved by avoiding the shoot-through current paths through an optimized inverter circuit. …”
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303
Research on Self-Recovery Ignition Protection Circuit for High-Voltage Power Supply System Based on Improved Gray Wolf Algorithm
Published 2024-12-01“…In order to solve the problems of traditional high-voltage power supply ignition protection circuits, such as non-essential start–stop power supply, a slow response speed, the system needing to be restarted manually, and so on, a high-voltage power supply system self-recovery ignition protection circuit was designed using an IGWO (improved grey wolf optimization) and PID control strategy designed to speed up the response speed, and improve the reliability and stability of the system. …”
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304
Energy-efficiency priority based beamforming design and optimization in IRS-assisted SWIPT system
Published 2022-01-01“…Intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfer (SWIPT) system is set as research background.Joint design and optimization of energy-efficiency priority based active beamforming at multi-antenna transmitter and passive beamforming at IRS were investigated.The optimization objective was to maximize minimum energy-efficiency, which was subject to transmitter power control, energy constraint at energy harvesting (EH) receiver and IRS phase shift constraint.Alternating direction method of multipliers (ADMM) was implemented to solve this non-linear non-convex optimization problem.Firstly, the fraction objective function was transformed via Dinkelbach’s approach.Singular value decomposition (SVD) andsemi-definite relaxation (SDR) were applied to obtain active beam forming vector at transmitter.Simulation results indicate that, IRS assisted SWIPT could significantly reduce energy threshold at EH receiver.The achievable energy-efficiency of the proposed strategy is 300 KB/J when total circuit power consumption is -15 dBm.Maximum energy-efficiency can be achieved with the maximum numbers of passive reflecting elements and transmitter antennas.…”
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305
A Multi-Objective Optimization Approach for Integrated Allocation of Distributed Generation and Protection Devices in Distribution Systems
Published 2025-01-01“…This paper presents a methodology for the optimal and simultaneous allocation of Distributed Generation (DG), Control and Protection Devices (CPDs) in unbalanced electric power distribution systems. …”
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306
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307
Analytical Analysis of the Mechanism and Mitigation Methods of Transient Overvoltage in Direct-Drive Wind Turbine Generators Connected to Weak Power System
Published 2025-01-01“…Additionally, a slower active power recovery rate corresponds to a slower overvoltage recovery speed. …”
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308
High-Voltage High-Capacity Active Filter Technology for High Voltage DC Converter Station
Published 2025-06-01“…A coordinated control method of multiple active filters is proposed for high-voltage and large-capacity active filters along with a steady-state parameter design and control strategy scheme, and further verified through various simulation methods, fully demonstrating the harmonic filtering and reactive power compensation capabilities of high-voltage and large-capacity active filters and their ability to support reactive power in the system. …”
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309
Design of CCM boost converter using fractional-order PID and neural-network techniques for power factor correction
Published 2024-12-01“…Additionally, it regulates the generated voltage. The control system implemented here will cascade with a fractional-order proportional-integral-derivative (PID) controller optimized using Antlion optimization (ALO) as its outer loop. …”
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310
Optimizing frequency stability with adaptive fast frequency reserves and Wide-Area Monitoring Systems
Published 2025-10-01“…This paper introduces a novel approach to optimizing frequency stability in power systems by designing System Integrity Protection Schemes (SIPS) and implementing adaptive Fast Frequency Reserves (FFR) within a Wide-Area Monitoring Protection Automation and Control (WAMPAC) framework. …”
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311
Multi-Source Coordinated Control and Parameter Optimization Methods for Frequency Stability in High-Proportion New Energy Sending-End Systems
Published 2025-05-01“…However, integrating a high proportion of renewable energy poses significant challenges to the frequency security and control of power systems at the sending-end base. …”
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312
V2G Scheduling Control Strategy Based on Virtual Synchronization
Published 2025-03-01“…Then, considering the working mode and characteristics of the V2G (Vehicle to Grid) system, an improved virtual synchronous control method was proposed. Under this control method, power can flow bidirectionally, and optimal power distribution was achieved through the V2G scheduling control strategy, thereby realizing both active and reactive power dispatch responses. …”
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313
Past, present, future of agricultural tractors
Published 2020-03-01“…They have the advantages of controlling processes in the machine and tools, the ability to provide agricultural implements with electric power for carrying out their work processes and ensuring their active drive to develop traction as well.…”
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314
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315
A Real-Life Demonstration of Secondary Frequency Reserve Provision with Electric Water Heaters
Published 2025-03-01Get full text
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316
Fast Task Scheduling With Model Predictive Control Integrating a Priority-Based Heuristic
Published 2025-01-01“…In addition, the algorithm shall provide in real time an update of the planning, in case some unforeseen events require a re-scheduling of the activities. While a standard application of mixed-integer optimization would not be feasible in practice due to the combinatorial complexity of the problem, the scalable MPC algorithm proposed in this paper retains all the flexibility and modelling power of optimization-based techniques, and is almost as fast as the state of the art scheduling heuristics, which in real scenarios can provide a sub-optimal solution in few seconds, or less. …”
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317
Enhancement of Reference Power Standard at SASO NMCC on AC power And revaluation of measurement uncertainty
Published 2025-01-01“…The evaluation of uncertainty was 40 μW/V.A for active power and 40 μvar/V.A for reactive power. Finally, the paper mentions future work in its concluding section.…”
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318
An Enhanced Integrated Optimization Strategy for Wide ZVS Operation and Reduced Current Stress Across the Full Load Range in DAB Converters
Published 2025-07-01“…The dual-active-bridge (DAB) converter has emerged as a promising topology for renewable energy applications and microgrid systems due to its high power density and bidirectional energy-transfer capability. …”
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319
Objective Functions for the Blade Shape Optimisation of a Cross-Flow Tidal Turbine under Constraints
Published 2025-06-01Get full text
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320
Online Voltage Regulation With Minimum Disturbance for Distribution Grid Without System Knowledge
Published 2024-01-01“…Based on such a proposal, we superposed the design with a physical kernel to embed system non-linearity from power flow equations. These designs lead to a highly robust adaptive online policy, which reduces the perturbation gradually but monotonically based on the optimal control guarantee. …”
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