Results 11 to 20 of about 32,552 (250)
Mechanical Power of Induction Motors with Non-sinusoidal Power Supply [PDF]
Problems of the Regional EnergeticsWhen induction motors are powered by solid-state voltage and frequency converters, the torque on the shaft is created by the first harmonic of the current, and the higher harmonics of the cur-rent only create losses in the stator winding.
Kovalov V., Kovalova Yu.
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Evaluation of the Influence of Non-sinusoidal Conditions on Power Transformers [PDF]
E3S Web of Conferences, 2018 The electrical equipment operation is cost-effective and reliable when operating parameters of the electrical network correspond to the rated data of the equipment.
Kovernikova Lidiia, Van Cuong Ngo
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Non-Sinusoidal Loading Effect on Oil Immersed Power Transformers [PDF]
Engineering and Technology Journal, 2011 Transformers are usually designed for nominal frequency and sinusoidal load current. Nowadays, usage of non-linear loads such as power electronics loads has extremely increased.
Mohammed k.Edan
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Non-Parametric Kinematic Optimization of Flapping Foil Propulsion Using a Discrete Adjoint Method [PDF]
BiomimeticsOptimizing flapping-foil kinematics for underwater propulsion is challenging due to strong temporal coupling and nonlinear fluid–structure interactions. Most existing approaches rely on parameterized motion profiles, which restrict the accessible design ...
Zhaoran Yin +4 more
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Powers and Power Factor in Non-Sinusoidal and Non-Symmetrical Regimes in Three-Phase Systems
Energies, 2022 The paper presents several theories related to definitions of powers and power factors in non-sinusoidal and non-symmetrical regimes. The theories must meet some requirements: (a) to facilitate the measuring of power quantities by using acquired ...
Petre-Marian Nicolae +2 more
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Energies, 2023 A self-supplied circuit that is able to significantly increase the power delivered to a bridge rectifier by a Resonant Piezoelectric Vibration Energy Harvester (RPVEH) is presented and discussed.
Luigi Costanzo +2 more
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Mathematics, 2021 Traditional electrical power theories and one of their most important concepts—apparent power—are still a source of debate, because they present several flaws that misinterpret the power-transfer and energy-balance phenomena under distorted grid ...
Francisco G. Montoya +4 more
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EnergiesThis study proposes a hybrid pitching motion for oscillating flat plates aimed at augmenting the energy extraction efficiency of an energy harvester. The proposed hybrid pitching motion, within the first half cycle, integrates a non-sinusoidal movement ...
Suleiman Saleh, Chang-Hyun Sohn
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Power Analysis of Traction Transformer under Non-Sinusoidal Conditions
Advances in Electrical and Electronic Engineering, 2004 Article deals with power analysis of traction transformer 100/27 kV, Sn= 10MVA under non-sinusoidal conditions. The power analysis is evaluated by means of IEEE Trial Use Standard Definitions of the Electric Power Quantities under Non-Sinusoidal ...
Jaromir Kijonka +2 more
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Methodological approach to assessing additional active power losses in overhead power lines at non-sinusoidal modes [PDF]
E3S Web of Conferences, 2023 Non-sinusoidal voltage in electrical networks is one of the most pressing problems in the field of power quality. In non-sinusoidal modes in electrical networks, in addition to losses of active power at the fundamental frequency, i.e.
Kovernikova Lidiia
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