Results 21 to 30 of about 9,756,724 (282)
A New Approach for Estimating Insulation Condition of Field Transformers Using FRA
Advances in Electrical and Computer Engineering, 2020 Frequency response analysis (FRA) is a tool for evaluating mechanical integrity of transformer's core and winding. However, several studies have reported that FRA is also sensitive to other parameters such as temperature, moisture content and presence ...
MOHD YOUSOF, M. F. +4 more
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Step response and frequency response methods
Automatica, 1979 Abstract In this tutorial very simple methods will be presented by which models for dynamic processes can be obtained. These methods employ step responses of the process or responses to other nonperiodic testsignals or process responses to periodic signals.
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RMS Modeling and Control of a Grid-Forming E-STATCOM for Power System Stability in Isolated Grids
Applied SciencesThis paper presents a comprehensive RMS-based phasorial model of an E-STATCOM with grid-forming (GFM) control, designed to improve power system stability in isolated grids.
José Luis Rodriguez-Amenedo +3 more
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Actuators, 2022 In this paper, a claw-pole magnetic levitation torque motor (CPMLTM) utilizing cogging torque is proposed as an electromechanical converter (EMC) for two-dimensional valves (2D valve).
Jiahiu Huang +4 more
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AerospaceDynamically modeling the flexible characteristics of large-scale jointed composite spacecraft is challenging. In this study, a dynamic modeling method for rigid–flexible composite spacecraft is proposed based on the absolute nodal coordinate formulation (
Jiaqi Wu +6 more
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Analysis of Double Elastic Steel Wind Driven Magneto-Electric Vibration Energy Harvesting System
Sensors, 2021 This research proposes an energy harvesting system that collects the downward airflow from a helicopter or a multi-axis unmanned rotary-wing aircraft and uses this wind force to drive the magnet to rotate, generating repulsive force, which causes the ...
Yi-Ren Wang, Ming-Ching Chu
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On Frequency Response Control of Future Grid
发电技术, 2018 As the development of ultra-high voltage (UHV) AC and DC transmission system in China, the quantity of unbalanced power caused by a single element fault will continue to increase.
Weidong LI
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Actuators, 2021 Piezoelectric stack actuators (PESAs) are widely used in applications requiring a fast response, high resolution, and high accuracy. The self-heating of a PESA during continuous drive with a large amplitude at high frequencies can change its voltage ...
Rina Nishida +2 more
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iEnergyAs the development of new power systems progresses, the inherent inertia of power systems continues to diminish. Centralized frequency regulation, which relies on rapid communication and real-time control, can enable inverter-based thermostatically ...
Te Zhou +6 more
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A Generalized Predictive Controller for a Wind Turbine Providing Frequency Support for a Microgrid
Energies, 2022 The power system is moving away from the centralized generation paradigm. One of the current trends is the microgrid concept, where loads, small generators and renewable energy resources (RERs) that are in close proximity are controlled as one entity ...
Carlos E. Prieto Cerón +3 more
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